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ntlmrelayx.py: Log initial authentication in multi-target mode #1602

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merged 3 commits into from
Sep 28, 2023
Merged

ntlmrelayx.py: Log initial authentication in multi-target mode #1602

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ntlmrelayx.py: Log initial authentication in multi-target mode
rtpt-erikgeiser Aug 29, 2023
1d6d1bb
Use logger instead of printing directly
rtpt-erikgeiser Sep 28, 2023
4ae7452
Set callback setter
rtpt-erikgeiser Sep 28, 2023
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16 changes: 14 additions & 2 deletions impacket/examples/ntlmrelayx/servers/smbrelayserver.py
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Original file line number Diff line number Diff line change
Expand Up @@ -44,6 +44,16 @@
from impacket.smbserver import getFileTime, decodeSMBString, encodeSMBString
from impacket.smb3structs import SMB2Error

def auth_callback(smbServer, connData, domain_name, user_name, host_name):
user = user_name
if domain_name:
user = domain_name + "/" + user_name
if not user:
user = "unknown"

print(f"[*] Received connection from {user} at {host_name}, connection will be relayed after re-authentication")
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class SMBRelayServer(Thread):
def __init__(self,config):
Thread.__init__(self)
Expand All @@ -58,7 +68,7 @@ def __init__(self,config):
#Username we auth as gets stored here later
self.authUser = None
self.proxyTranslator = None


# Here we write a mini config for the server
smbConfig = ConfigParser.ConfigParser()
Expand Down Expand Up @@ -100,6 +110,8 @@ def __init__(self,config):
smbport = 445

self.server = SMBSERVER((config.interfaceIp,smbport), config_parser = smbConfig)
if not self.config.disableMulti:
self.server.auth_callback = auth_callback
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logging.getLogger('impacket.smbserver').setLevel(logging.CRITICAL)

self.server.processConfigFile()
Expand Down Expand Up @@ -166,7 +178,7 @@ def SmbNegotiate(self, connId, smbServer, recvPacket, isSMB1=False):
respPacket['TreeID'] = 0

respSMBCommand = smb3.SMB2Negotiate_Response()

# Just for the Nego Packet, then disable it
respSMBCommand['SecurityMode'] = smb3.SMB2_NEGOTIATE_SIGNING_ENABLED

Expand Down