Source code for plaso.parsers.winreg_plugins.usb
# -*- coding: utf-8 -*-
"""File containing a Windows Registry plugin to parse the USB Device key."""
from __future__ import unicode_literals
from plaso.containers import time_events
from plaso.containers import windows_events
from plaso.lib import definitions
from plaso.parsers import logger
from plaso.parsers import winreg
from plaso.parsers.winreg_plugins import interface
[docs]class USBPlugin(interface.WindowsRegistryPlugin):
"""USB Windows Registry plugin for last connection time."""
NAME = 'windows_usb_devices'
DESCRIPTION = 'Parser for USB device Registry entries.'
FILTERS = frozenset([
interface.WindowsRegistryKeyPathFilter(
'HKEY_LOCAL_MACHINE\\System\\CurrentControlSet\\Enum\\USB')])
URLS = [
('https://msdn.microsoft.com/en-us/library/windows/hardware/'
'jj649944%28v=vs.85%29.aspx')]
_SOURCE_APPEND = ': USB Entries'
# 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.
"""
for subkey in registry_key.GetSubkeys():
values_dict = {}
values_dict['subkey_name'] = subkey.name
vendor_identification = None
product_identification = None
try:
subkey_name_parts = subkey.name.split('&')
if len(subkey_name_parts) >= 2:
vendor_identification = subkey_name_parts[0]
product_identification = subkey_name_parts[1]
except ValueError as exception:
logger.warning(
'Unable to split string: {0:s} with error: {1!s}'.format(
subkey.name, exception))
if vendor_identification and product_identification:
values_dict['vendor'] = vendor_identification
values_dict['product'] = product_identification
for devicekey in subkey.GetSubkeys():
values_dict['serial'] = devicekey.name
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
# Last USB connection per USB device recorded in the Registry.
event = time_events.DateTimeValuesEvent(
devicekey.last_written_time,
definitions.TIME_DESCRIPTION_LAST_CONNECTED)
parser_mediator.ProduceEventWithEventData(event, event_data)
winreg.WinRegistryParser.RegisterPlugin(USBPlugin)