117 lines
4.3 KiB
Python
117 lines
4.3 KiB
Python
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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#
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# Copyright 2013 The Plaso Project Authors.
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# Please see the AUTHORS file for details on individual authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""This file contains a parser for MS Office MRUs for Plaso."""
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import logging
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import re
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from plaso.events import windows_events
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from plaso.lib import timelib
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from plaso.parsers import winreg
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from plaso.parsers.winreg_plugins import interface
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__author__ = 'David Nides (david.nides@gmail.com)'
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class OfficeMRUPlugin(interface.KeyPlugin):
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"""Plugin that parses Microsoft Office MRU keys."""
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NAME = 'winreg_office_mru'
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DESCRIPTION = u'Parser for Microsoft Office MRU Registry data.'
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REG_TYPE = 'NTUSER'
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REG_KEYS = [
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u'\\Software\\Microsoft\\Office\\14.0\\Word\\Place MRU',
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u'\\Software\\Microsoft\\Office\\14.0\\Access\\File MRU',
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u'\\Software\\Microsoft\\Office\\14.0\\Access\\Place MRU',
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u'\\Software\\Microsoft\\Office\\14.0\\PowerPoint\\File MRU',
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u'\\Software\\Microsoft\\Office\\14.0\\PowerPoint\\Place MRU',
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u'\\Software\\Microsoft\\Office\\14.0\\Excel\\File MRU',
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u'\\Software\\Microsoft\\Office\\14.0\\Excel\\Place MRU',
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u'\\Software\\Microsoft\\Office\\14.0\\Word\\File MRU']
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_RE_VALUE_NAME = re.compile(r'^Item [0-9]+$', re.I)
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# The Office 12 item MRU is formatted as:
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# [F00000000][T%FILETIME%]*\\%FILENAME%
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# The Office 14 item MRU is formatted as:
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# [F00000000][T%FILETIME%][O00000000]*%FILENAME%
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_RE_VALUE_DATA = re.compile(r'\[F00000000\]\[T([0-9A-Z]+)\].*\*[\\]?(.*)')
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def GetEntries(
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self, parser_context, key=None, registry_type=None, file_entry=None,
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parser_chain=None, **unused_kwargs):
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"""Collect Values under Office 2010 MRUs and return events for each one.
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Args:
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parser_context: A parser context object (instance of ParserContext).
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key: Optional Registry key (instance of winreg.WinRegKey).
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The default is None.
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registry_type: Optional Registry type string. The default is None.
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file_entry: Optional file entry object (instance of dfvfs.FileEntry).
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The default is None.
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parser_chain: Optional string containing the parsing chain up to this
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point. The default is None.
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"""
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# TODO: Test other Office versions to make sure this plugin is applicable.
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for value in key.GetValues():
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# Ignore any value not in the form: 'Item [0-9]+'.
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if not value.name or not self._RE_VALUE_NAME.search(value.name):
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continue
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# Ignore any value that is empty or that does not contain a string.
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if not value.data or not value.DataIsString():
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continue
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values = self._RE_VALUE_DATA.findall(value.data)
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# Values will contain a list containing a tuple containing 2 values.
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if len(values) != 1 or len(values[0]) != 2:
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continue
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try:
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filetime = int(values[0][0], 16)
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except ValueError:
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logging.warning('Unable to convert filetime string to an integer.')
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filetime = 0
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# TODO: why this behavior? Only the first Item is stored with its
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# timestamp. Shouldn't this be: Store all the Item # values with
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# their timestamp and store the entire MRU as one event with the
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# registry key last written time?
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if value.name == 'Item 1':
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timestamp = timelib.Timestamp.FromFiletime(filetime)
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else:
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timestamp = 0
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text_dict = {}
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text_dict[value.name] = value.data
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event_object = windows_events.WindowsRegistryEvent(
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timestamp, key.path, text_dict, offset=key.offset,
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registry_type=registry_type,
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source_append=': Microsoft Office MRU')
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parser_context.ProduceEvent(
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event_object, parser_chain=parser_chain, file_entry=file_entry)
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winreg.WinRegistryParser.RegisterPlugin(OfficeMRUPlugin)
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