Source code for plaso.parsers.winreg_plugins.terminal_server
# -*- coding: utf-8 -*-
"""This file contains the Terminal Server Registry plugins."""
from __future__ import unicode_literals
import re
from plaso.containers import time_events
from plaso.containers import windows_events
from plaso.lib import definitions
from plaso.parsers import winreg
from plaso.parsers.winreg_plugins import interface
[docs]class TerminalServerClientPlugin(interface.WindowsRegistryPlugin):
"""Windows Registry plugin for Terminal Server Client Connection keys."""
NAME = 'mstsc_rdp'
DESCRIPTION = 'Parser for Terminal Server Client Connection Registry data.'
FILTERS = frozenset([
interface.WindowsRegistryKeyPathFilter(
'HKEY_CURRENT_USER\\Software\\Microsoft\\Terminal Server Client\\'
'Servers'),
interface.WindowsRegistryKeyPathFilter(
'HKEY_CURRENT_USER\\Software\\Microsoft\\Terminal Server Client\\'
'Default\\AddIns\\RDPDR')])
_SOURCE_APPEND = ': RDP Connection'
# pylint 1.9.3 wants a docstring for kwargs, but this is not useful to add.
# pylint: disable=missing-param-doc
[docs] def ExtractEvents(self, parser_mediator, registry_key, **kwargs):
"""Extracts events from a Terminal Server Client Windows Registry key.
Args:
parser_mediator (ParserMediator): mediates interactions between parsers
and other components, such as storage and dfvfs.
registry_key (dfwinreg.WinRegistryKey): Windows Registry key.
"""
mru_values_dict = {}
for subkey in registry_key.GetSubkeys():
username_value = subkey.GetValueByName('UsernameHint')
if (username_value and username_value.data and
username_value.DataIsString()):
username = username_value.GetDataAsObject()
else:
username = 'N/A'
mru_values_dict[subkey.name] = username
event_data = windows_events.WindowsRegistryEventData()
event_data.key_path = subkey.path
event_data.offset = subkey.offset
event_data.regvalue = {'Username hint': username}
event_data.source_append = self._SOURCE_APPEND
event = time_events.DateTimeValuesEvent(
subkey.last_written_time, definitions.TIME_DESCRIPTION_WRITTEN)
parser_mediator.ProduceEventWithEventData(event, event_data)
event_data = windows_events.WindowsRegistryEventData()
event_data.key_path = registry_key.path
event_data.offset = registry_key.offset
event_data.regvalue = mru_values_dict
event_data.source_append = self._SOURCE_APPEND
event = time_events.DateTimeValuesEvent(
registry_key.last_written_time, definitions.TIME_DESCRIPTION_WRITTEN)
parser_mediator.ProduceEventWithEventData(event, event_data)
[docs]class TerminalServerClientMRUPlugin(interface.WindowsRegistryPlugin):
"""Windows Registry plugin for Terminal Server Client Connection MRUs keys."""
NAME = 'mstsc_rdp_mru'
DESCRIPTION = 'Parser for Terminal Server Client MRU Registry data.'
FILTERS = frozenset([
interface.WindowsRegistryKeyPathFilter(
'HKEY_CURRENT_USER\\Software\\Microsoft\\Terminal Server Client\\'
'Default'),
interface.WindowsRegistryKeyPathFilter(
'HKEY_CURRENT_USER\\Software\\Microsoft\\Terminal Server Client\\'
'LocalDevices')])
_RE_VALUE_DATA = re.compile(r'MRU[0-9]+')
_SOURCE_APPEND = ': RDP Connection'
# pylint 1.9.3 wants a docstring for kwargs, but this is not useful to add.
# pylint: disable=missing-param-doc
[docs] def ExtractEvents(self, parser_mediator, registry_key, **kwargs):
"""Extracts events from a Terminal Server Client MRU Windows Registry key.
Args:
parser_mediator (ParserMediator): mediates interactions between parsers
and other components, such as storage and dfvfs.
registry_key (dfwinreg.WinRegistryKey): Windows Registry key.
"""
values_dict = {}
for value in registry_key.GetValues():
# Ignore the default value.
if not value.name:
continue
# Ignore any value that is empty or that does not contain a string.
if not value.data or not value.DataIsString():
continue
values_dict[value.name] = value.GetDataAsObject()
event_data = windows_events.WindowsRegistryEventData()
event_data.key_path = registry_key.path
event_data.offset = registry_key.offset
event_data.regvalue = values_dict
event_data.source_append = self._SOURCE_APPEND
event = time_events.DateTimeValuesEvent(
registry_key.last_written_time, definitions.TIME_DESCRIPTION_WRITTEN)
parser_mediator.ProduceEventWithEventData(event, event_data)
winreg.WinRegistryParser.RegisterPlugins([
TerminalServerClientPlugin, TerminalServerClientMRUPlugin])