mirror of
https://github.com/volatilityfoundation/volatility
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iMHLv2
125 lines
5.1 KiB
Python
125 lines
5.1 KiB
Python
# Volatility
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# Copyright (C) 2008 Volatile Systems
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# Copyright (c) 2008 Brendan Dolan-Gavitt <bdolangavitt@wesleyan.edu>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or (at
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# your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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"""
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This module implements the fast socket scanning
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@author: AAron Walters and Brendan Dolan-Gavitt
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@license: GNU General Public License 2.0 or later
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@contact: awalters@volatilesystems.com,bdolangavitt@wesleyan.edu
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@organization: Volatile Systems
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"""
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#pylint: disable-msg=C0111
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import volatility.scan as scan
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import volatility.plugins.common as common
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import volatility.utils as utils
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import volatility.obj as obj
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import volatility.debug as debug #pylint: disable-msg=W0611
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import volatility.cache as cache
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import volatility.protos as protos
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class CheckSocketCreateTime(scan.ScannerCheck):
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""" Check that _ADDRESS_OBJECT.CreateTime makes sense """
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def __init__(self, address_space, condition = lambda x: x, *args, **kwargs):
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scan.ScannerCheck.__init__(self, address_space, *args, **kwargs)
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self.condition = condition
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def check(self, offset):
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""" The offset parameter here is the start of PoolTag as yielded
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by BaseScanner.scan. Unlike other objects, _ADDRESS_OBJECT do not
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have an _OBJECT_HEADER or any optional headers. Thus to find the
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_ADDRESS_OBJECT from the PoolTag we just have to calculate the
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distance from PoolTag to the end of _POOL_HEADER.
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"""
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start_of_object = (self.address_space.profile.get_obj_size("_POOL_HEADER") -
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self.address_space.profile.get_obj_offset("_POOL_HEADER", "PoolTag"))
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address_obj = obj.Object('_ADDRESS_OBJECT', vm = self.address_space,
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offset = offset + start_of_object)
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return self.condition(address_obj.CreateTime.v())
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class PoolScanSockFast(scan.PoolScanner):
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def object_offset(self, found, address_space):
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""" Return the offset of _ADDRESS_OBJECT """
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return found + (address_space.profile.get_obj_size("_POOL_HEADER") -
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address_space.profile.get_obj_offset("_POOL_HEADER", "PoolTag"))
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checks = [ ('PoolTagCheck', dict(tag = "TCPA")),
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('CheckPoolSize', dict(condition = lambda x: x >= 0x15C)),
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('CheckPoolType', dict(non_paged = True, free = True)),
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## Valid sockets have time > 0
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('CheckSocketCreateTime', dict(condition = lambda x: x > 0)),
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('CheckPoolIndex', dict(value = 0))
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]
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class SockScan(common.AbstractWindowsCommand):
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""" Scan Physical memory for _ADDRESS_OBJECT objects (tcp sockets)
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"""
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# Declare meta information associated with this plugin
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meta_info = dict(
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author = 'Brendan Dolan-Gavitt',
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copyright = 'Copyright (c) 2007,2008 Brendan Dolan-Gavitt',
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contact = 'bdolangavitt@wesleyan.edu',
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license = 'GNU General Public License 2.0 or later',
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url = 'http://moyix.blogspot.com/',
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os = 'WIN_32_XP_SP2',
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version = '1.0',
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)
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@staticmethod
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def is_valid_profile(profile):
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return (profile.metadata.get('os', 'unknown') == 'windows' and
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profile.metadata.get('major', 0) == 5)
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@cache.CacheDecorator("tests/sockscan")
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def calculate(self):
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## Just grab the AS and scan it using our scanner
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address_space = utils.load_as(self._config, astype = 'physical')
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if not self.is_valid_profile(address_space.profile):
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debug.error("This command does not support the selected profile.")
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scanner = PoolScanSockFast()
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for offset in scanner.scan(address_space):
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yield obj.Object('_ADDRESS_OBJECT', vm = address_space, offset = offset)
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def render_text(self, outfd, data):
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self.table_header(outfd, [('Offset(P)', '[addrpad]'),
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('PID', '>8'),
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('Port', '>6'),
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('Proto', '>6'),
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('Protocol', '15'),
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('Address', '15'),
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('Create Time', '')
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])
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for sock_obj in data:
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self.table_row(outfd,
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sock_obj.obj_offset,
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sock_obj.Pid,
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sock_obj.LocalPort,
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sock_obj.Protocol,
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protos.protos.get(sock_obj.Protocol.v(), "-"),
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sock_obj.LocalIpAddress,
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sock_obj.CreateTime)
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