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smbclient.py
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smbclient.py
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#!/usr/bin/env python
# Impacket - Collection of Python classes for working with network protocols.
#
# Copyright Fortra, LLC and its affiliated companies
#
# All rights reserved.
#
# This software is provided under a slightly modified version
# of the Apache Software License. See the accompanying LICENSE file
# for more information.
#
# Description:
# Mini shell using some of the SMB functionality of the library
#
# Author:
# Alberto Solino (@agsolino)
#
# Reference for:
# SMB DCE/RPC
#
from __future__ import division
from __future__ import print_function
import sys
import logging
import argparse
from impacket.examples import logger
from impacket.examples.utils import parse_target
from impacket.examples.smbclient import MiniImpacketShell
from impacket import version
from impacket.smbconnection import SMBConnection
def main():
# Init the example's logger theme
logger.init()
print(version.BANNER)
parser = argparse.ArgumentParser(add_help = True, description = "SMB client implementation.")
parser.add_argument('target', action='store', help='[[domain/]username[:password]@]<targetName or address>')
parser.add_argument('-inputfile', type=argparse.FileType('r'), help='input file with commands to execute in the mini shell')
parser.add_argument('-outputfile', action='store', help='Output file to log smbclient actions in')
parser.add_argument('-debug', action='store_true', help='Turn DEBUG output ON')
group = parser.add_argument_group('authentication')
group.add_argument('-hashes', action="store", metavar = "LMHASH:NTHASH", help='NTLM hashes, format is LMHASH:NTHASH')
group.add_argument('-no-pass', action="store_true", help='don\'t ask for password (useful for -k)')
group.add_argument('-k', action="store_true", help='Use Kerberos authentication. Grabs credentials from ccache file '
'(KRB5CCNAME) based on target parameters. If valid credentials '
'cannot be found, it will use the ones specified in the command '
'line')
group.add_argument('-aesKey', action="store", metavar = "hex key", help='AES key to use for Kerberos Authentication '
'(128 or 256 bits)')
group = parser.add_argument_group('connection')
group.add_argument('-dc-ip', action='store', metavar="ip address",
help='IP Address of the domain controller. If omitted it will use the domain part (FQDN) specified in '
'the target parameter')
group.add_argument('-target-ip', action='store', metavar="ip address",
help='IP Address of the target machine. If omitted it will use whatever was specified as target. '
'This is useful when target is the NetBIOS name and you cannot resolve it')
group.add_argument('-port', choices=['139', '445'], nargs='?', default='445', metavar="destination port",
help='Destination port to connect to SMB Server')
if len(sys.argv)==1:
parser.print_help()
sys.exit(1)
options = parser.parse_args()
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)
domain, username, password, address = parse_target(options.target)
if options.target_ip is None:
options.target_ip = address
if domain is None:
domain = ''
if password == '' and username != '' and options.hashes is None and options.no_pass is False and options.aesKey is None:
from getpass import getpass
password = getpass("Password:")
if options.aesKey is not None:
options.k = True
if options.hashes is not None:
lmhash, nthash = options.hashes.split(':')
else:
lmhash = ''
nthash = ''
try:
smbClient = SMBConnection(address, options.target_ip, sess_port=int(options.port))
if options.k is True:
smbClient.kerberosLogin(username, password, domain, lmhash, nthash, options.aesKey, options.dc_ip )
else:
smbClient.login(username, password, domain, lmhash, nthash)
shell = MiniImpacketShell(smbClient, None, options.outputfile)
if options.outputfile is not None:
f = open(options.outputfile, 'a')
f.write('=' * 20 + '\n' + options.target_ip + '\n' + '=' * 20 + '\n')
f.close()
if options.inputfile is not None:
logging.info("Executing commands from %s" % options.inputfile.name)
for line in options.inputfile.readlines():
if line[0] != '#':
print("# %s" % line, end=' ')
shell.onecmd(line)
else:
print(line, end=' ')
else:
shell.cmdloop()
except Exception as e:
if logging.getLogger().level == logging.DEBUG:
import traceback
traceback.print_exc()
logging.error(str(e))
if __name__ == "__main__":
main()