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Title: Enhance Command-Line Argument Handling for Mimikatz RPC Script with Custom GUID #1802

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Title: Enhance Command-Line Argument Handling for Mimikatz RPC Script with Custom GUID #1802

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10 changes: 10 additions & 0 deletions examples/mimikatz.py
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Original file line number Diff line number Diff line change
Expand Up @@ -122,6 +122,8 @@ def main():
parser.add_argument('target', action='store', help='[[domain/]username[:password]@]<targetName or address>')
parser.add_argument('-file', type=argparse.FileType('r'), help='input file with commands to execute in the mini shell')
parser.add_argument('-debug', action='store_true', help='Turn DEBUG output ON')
parser.add_argument('-guid', help='Custom GUID for RPC interface. This GUID should be same as mimikatz '
'rpc::server GUID, if omitted, the default UUID will be used')

group = parser.add_argument_group('authentication')

Expand Down Expand Up @@ -177,6 +179,14 @@ def main():
lmhash = ''
nthash = ''

# Use the provided GUID or fall back to the default
if options.guid:
print(f"Custom GUID provided: {options.guid}")
mimilib.set_msrpc_uuid(options.guid)
else:
print("No custom GUID provided, using default UUID.")
mimilib.set_msrpc_uuid()

bound = False

try:
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12 changes: 11 additions & 1 deletion impacket/dcerpc/v5/mimilib.py
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Original file line number Diff line number Diff line change
Expand Up @@ -35,7 +35,17 @@
from impacket.uuid import uuidtup_to_bin
from impacket.structure import Structure

MSRPC_UUID_MIMIKATZ = uuidtup_to_bin(('17FC11E9-C258-4B8D-8D07-2F4125156244', '1.0'))

# Define the default RPC server interface used by mimikatz
DEFAULT_UUID = uuidtup_to_bin(('17FC11E9-C258-4B8D-8D07-2F4125156244', '1.0'))

# function to set msrpc uuid
def set_msrpc_uuid(custom_guid=None):
global MSRPC_UUID_MIMIKATZ
if custom_guid is not None:
MSRPC_UUID_MIMIKATZ = uuidtup_to_bin((custom_guid, '1.0'))
else:
MSRPC_UUID_MIMIKATZ = DEFAULT_UUID

class DCERPCSessionError(DCERPCException):
def __init__(self, error_string=None, error_code=None, packet=None):
Expand Down