Source code for plaso.parsers.winreg_plugins.officemru
# -*- coding: utf-8 -*-
""""Windows Registry plugin for the Microsoft Office MRU."""
from __future__ import unicode_literals
import re
from dfdatetime import filetime as dfdatetime_filetime
from dfdatetime import semantic_time as dfdatetime_semantic_time
from plaso.containers import events
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 OfficeMRUWindowsRegistryEventData(events.EventData):
"""Microsoft Office MRU Windows Registry event data.
Attributes:
key_path (str): Windows Registry key path.
value_string (str): MRU value.
"""
DATA_TYPE = 'windows:registry:office_mru'
def __init__(self):
"""Initializes event data."""
super(OfficeMRUWindowsRegistryEventData, self).__init__(
data_type=self.DATA_TYPE)
self.key_path = None
self.value_string = None
[docs]class OfficeMRUPlugin(interface.WindowsRegistryPlugin):
"""Plugin that parses Microsoft Office MRU keys."""
NAME = 'microsoft_office_mru'
DESCRIPTION = 'Parser for Microsoft Office MRU Registry data.'
FILTERS = frozenset([
interface.WindowsRegistryKeyPathFilter(
'HKEY_CURRENT_USER\\Software\\Microsoft\\Office\\14.0\\'
'Access\\File MRU'),
interface.WindowsRegistryKeyPathFilter(
'HKEY_CURRENT_USER\\Software\\Microsoft\\Office\\14.0\\'
'Access\\Place MRU'),
interface.WindowsRegistryKeyPathFilter(
'HKEY_CURRENT_USER\\Software\\Microsoft\\Office\\14.0\\'
'Excel\\File MRU'),
interface.WindowsRegistryKeyPathFilter(
'HKEY_CURRENT_USER\\Software\\Microsoft\\Office\\14.0\\'
'Excel\\Place MRU'),
interface.WindowsRegistryKeyPathFilter(
'HKEY_CURRENT_USER\\Software\\Microsoft\\Office\\14.0\\'
'PowerPoint\\File MRU'),
interface.WindowsRegistryKeyPathFilter(
'HKEY_CURRENT_USER\\Software\\Microsoft\\Office\\14.0\\'
'PowerPoint\\Place MRU'),
interface.WindowsRegistryKeyPathFilter(
'HKEY_CURRENT_USER\\Software\\Microsoft\\Office\\14.0\\'
'Word\\File MRU'),
interface.WindowsRegistryKeyPathFilter(
'HKEY_CURRENT_USER\\Software\\Microsoft\\Office\\14.0\\'
'Word\\Place MRU')])
_RE_VALUE_NAME = re.compile(r'^Item [0-9]+$', re.I)
# The Office 12 item MRU is formatted as:
# [F00000000][T%FILETIME%]*\\%FILENAME%
# The Office 14 item MRU is formatted as:
# [F00000000][T%FILETIME%][O00000000]*%FILENAME%
_RE_VALUE_DATA = re.compile(r'\[F00000000\]\[T([0-9A-Z]+)\].*\*[\\]?(.*)')
_SOURCE_APPEND = ': Microsoft Office MRU'
# 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 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.
"""
# TODO: Test other Office versions to make sure this plugin is applicable.
values_dict = {}
for registry_value in registry_key.GetValues():
# Ignore any value not in the form: 'Item [0-9]+'.
if not registry_value.name or not self._RE_VALUE_NAME.search(
registry_value.name):
continue
# Ignore any value that is empty or that does not contain a string.
if not registry_value.data or not registry_value.DataIsString():
continue
value_string = registry_value.GetDataAsObject()
values = self._RE_VALUE_DATA.findall(value_string)
# Values will contain a list containing a tuple containing 2 values.
if len(values) != 1 or len(values[0]) != 2:
continue
try:
timestamp = int(values[0][0], 16)
except ValueError:
parser_mediator.ProduceExtractionError((
'unable to convert filetime string to an integer for '
'value: {0:s}.').format(registry_value.name))
continue
event_data = OfficeMRUWindowsRegistryEventData()
event_data.key_path = registry_key.path
event_data.offset = registry_value.offset
# TODO: split value string in individual values.
event_data.value_string = value_string
values_dict[registry_value.name] = value_string
if not timestamp:
date_time = dfdatetime_semantic_time.SemanticTime('Not set')
else:
date_time = dfdatetime_filetime.Filetime(timestamp=timestamp)
# TODO: determine if this should be last written time.
event = time_events.DateTimeValuesEvent(
date_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 = 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.RegisterPlugin(OfficeMRUPlugin)