Files
volatility3/volatility/plugins/windows/userassist.py
T

373 lines
21 KiB
Python

import logging
import typing
import datetime
import codecs
import volatility.framework.interfaces.plugins as interfaces_plugins
from volatility.framework import exceptions, renderers, constants
from volatility.framework.renderers import format_hints
from volatility.framework.layers.registry import RegistryHive
from volatility.framework.configuration import requirements
from volatility.framework.symbols import intermed
from volatility.framework.objects import utility
from volatility.framework.layers.physical import BufferDataLayer
vollog = logging.getLogger(__name__)
# taken from http://msdn.microsoft.com/en-us/library/dd378457%28v=vs.85%29.aspx
folder_guids = {
"{de61d971-5ebc-4f02-a3a9-6c82895e5c04}":"Add or Remove Programs (Control Panel)",
"{724EF170-A42D-4FEF-9F26-B60E846FBA4F}":"%APPDATA%\\Microsoft\\Windows\\Start Menu\\Programs\\Administrative Tools",
"{a305ce99-f527-492b-8b1a-7e76fa98d6e4}":"Installed Updates",
"{9E52AB10-F80D-49DF-ACB8-4330F5687855}":"%LOCALAPPDATA%\\Microsoft\\Windows\\Burn\\Burn",
"{df7266ac-9274-4867-8d55-3bd661de872d}":"Programs and Features",
"{D0384E7D-BAC3-4797-8F14-CBA229B392B5}":"%ALLUSERSPROFILE%\\Microsoft\\Windows\\Start Menu\\Programs\\Administrative Tools",
"{C1BAE2D0-10DF-4334-BEDD-7AA20B227A9D}":"%ALLUSERSPROFILE%\\OEM Links",
"{0139D44E-6AFE-49F2-8690-3DAFCAE6FFB8}":"%ALLUSERSPROFILE%\\Microsoft\\Windows\\Start Menu\\Programs",
"{A4115719-D62E-491D-AA7C-E74B8BE3B067}":"%ALLUSERSPROFILE%\\Microsoft\\Windows\\Start Menu",
"{82A5EA35-D9CD-47C5-9629-E15D2F714E6E}":"%ALLUSERSPROFILE%\\Microsoft\\Windows\\Start Menu\\Programs\\StartUp",
"{B94237E7-57AC-4347-9151-B08C6C32D1F7}":"%ALLUSERSPROFILE%\\Microsoft\\Windows\\Templates",
"{0AC0837C-BBF8-452A-850D-79D08E667CA7}":"(My) Computer",
"{4bfefb45-347d-4006-a5be-ac0cb0567192}":"Conflicts",
"{6F0CD92B-2E97-45D1-88FF-B0D186B8DEDD}":"Network Connections",
"{56784854-C6CB-462b-8169-88E350ACB882}":"%USERPROFILE%\\Contacts",
"{82A74AEB-AEB4-465C-A014-D097EE346D63}":"Control Panel",
"{2B0F765D-C0E9-4171-908E-08A611B84FF6}":"%APPDATA%\\Microsoft\\Windows\\Cookies",
"{B4BFCC3A-DB2C-424C-B029-7FE99A87C641}":"Desktop",
"{5CE4A5E9-E4EB-479D-B89F-130C02886155}":"%ALLUSERSPROFILE%\\Microsoft\\Windows\\DeviceMetadataStore",
"{7B0DB17D-9CD2-4A93-9733-46CC89022E7C}":"%APPDATA%\\Microsoft\\Windows\\Libraries\\Documents.library-ms",
"{374DE290-123F-4565-9164-39C4925E467B}":"%USERPROFILE%\\Downloads",
"{1777F761-68AD-4D8A-87BD-30B759FA33DD}":"%USERPROFILE%\\Favorites",
"{FD228CB7-AE11-4AE3-864C-16F3910AB8FE}":"%windir%\\Fonts",
"{CAC52C1A-B53D-4edc-92D7-6B2E8AC19434}":"Games",
"{054FAE61-4DD8-4787-80B6-090220C4B700}":"GameExplorer",
"{D9DC8A3B-B784-432E-A781-5A1130A75963}":"%LOCALAPPDATA%\\Microsoft\\Windows\\History",
"{52528A6B-B9E3-4ADD-B60D-588C2DBA842D}":"Homegroup",
"{BCB5256F-79F6-4CEE-B725-DC34E402FD46}":"%APPDATA%\\Microsoft\\Internet Explorer\\Quick Launch\\User Pinned\\ImplicitAppShortcuts",
"{352481E8-33BE-4251-BA85-6007CAEDCF9D}":"%LOCALAPPDATA%\\Microsoft\\Windows\\Temporary Internet Files",
"{4D9F7874-4E0C-4904-967B-40B0D20C3E4B}":"The Internet",
"{1B3EA5DC-B587-4786-B4EF-BD1DC332AEAE}":"%APPDATA%\\Microsoft\\Windows\\Libraries",
"{bfb9d5e0-c6a9-404c-b2b2-ae6db6af4968}":"%USERPROFILE%\\Links",
"{F1B32785-6FBA-4FCF-9D55-7B8E7F157091}":"%LOCALAPPDATA% (%USERPROFILE%\\AppData\\Local)",
"{A520A1A4-1780-4FF6-BD18-167343C5AF16}":"%USERPROFILE%\\AppData\\LocalLow",
"{2A00375E-224C-49DE-B8D1-440DF7EF3DDC}":"%windir%\\resources\\0409 (code page)",
"{4BD8D571-6D19-48D3-BE97-422220080E43}":"%USERPROFILE%\\Music",
"{2112AB0A-C86A-4FFE-A368-0DE96E47012E}":"%APPDATA%\\Microsoft\\Windows\\Libraries\\Music.library-ms",
"{C5ABBF53-E17F-4121-8900-86626FC2C973}":"%APPDATA%\\Microsoft\\Windows\\Network Shortcuts",
"{D20BEEC4-5CA8-4905-AE3B-BF251EA09B53}":"Network",
"{2C36C0AA-5812-4b87-BFD0-4CD0DFB19B39}":"%LOCALAPPDATA%\\Microsoft\\Windows Photo Gallery\\Original Images",
"{69D2CF90-FC33-4FB7-9A0C-EBB0F0FCB43C}":"%USERPROFILE%\\Pictures\\Slide Shows",
"{A990AE9F-A03B-4E80-94BC-9912D7504104}":"%APPDATA%\\Microsoft\\Windows\\Libraries\\Pictures.library-ms",
"{33E28130-4E1E-4676-835A-98395C3BC3BB}":"%USERPROFILE%\\Pictures",
"{DE92C1C7-837F-4F69-A3BB-86E631204A23}":"%USERPROFILE%\\Music\\Playlists",
"{76FC4E2D-D6AD-4519-A663-37BD56068185}":"Printers",
"{9274BD8D-CFD1-41C3-B35E-B13F55A758F4}":"%APPDATA%\\Microsoft\\Windows\\Printer Shortcuts",
"{5E6C858F-0E22-4760-9AFE-EA3317B67173}":"%USERPROFILE% (%SystemDrive%\\Users\\%USERNAME%)",
"{62AB5D82-FDC1-4DC3-A9DD-070D1D495D97}":"%ALLUSERSPROFILE% (%ProgramData%, %SystemDrive%\\ProgramData)",
"{905e63b6-c1bf-494e-b29c-65b732d3d21a}":"%ProgramFiles%",
"{6D809377-6AF0-444b-8957-A3773F02200E}":"%ProgramFiles%",
"{7C5A40EF-A0FB-4BFC-874A-C0F2E0B9FA8E}":"%ProgramFiles%",
"{F7F1ED05-9F6D-47A2-AAAE-29D317C6F066}":"%ProgramFiles%\\Common Files",
"{6365D5A7-0F0D-45E5-87F6-0DA56B6A4F7D}":"%ProgramFiles%\\Common Files",
"{DE974D24-D9C6-4D3E-BF91-F4455120B917}":"%ProgramFiles%\\Common Files",
"{A77F5D77-2E2B-44C3-A6A2-ABA601054A51}":"%APPDATA%\\Microsoft\\Windows\\Start Menu\\Programs",
"{DFDF76A2-C82A-4D63-906A-5644AC457385}":"%PUBLIC% (%SystemDrive%\\Users\\Public)",
"{C4AA340D-F20F-4863-AFEF-F87EF2E6BA25}":"%PUBLIC%\\Desktop",
"{ED4824AF-DCE4-45A8-81E2-FC7965083634}":"%PUBLIC%\\Documents",
"{3D644C9B-1FB8-4f30-9B45-F670235F79C0}":"%PUBLIC%\\Downloads",
"{DEBF2536-E1A8-4c59-B6A2-414586476AEA}":"%ALLUSERSPROFILE%\\Microsoft\\Windows\\GameExplorer",
"{48DAF80B-E6CF-4F4E-B800-0E69D84EE384}":"%ALLUSERSPROFILE%\\Microsoft\\Windows\\Libraries",
"{3214FAB5-9757-4298-BB61-92A9DEAA44FF}":"%PUBLIC%\\Music",
"{B6EBFB86-6907-413C-9AF7-4FC2ABF07CC5}":"%PUBLIC%\\Pictures",
"{E555AB60-153B-4D17-9F04-A5FE99FC15EC}":"%ALLUSERSPROFILE%\\Microsoft\\Windows\\Ringtones",
"{2400183A-6185-49FB-A2D8-4A392A602BA3}":"%PUBLIC%\\Videos",
"{52a4f021-7b75-48a9-9f6b-4b87a210bc8f}":"%APPDATA%\\Microsoft\\Internet Explorer\\Quick Launch",
"{AE50C081-EBD2-438A-8655-8A092E34987A}":"%APPDATA%\\Microsoft\\Windows\\Recent",
"{1A6FDBA2-F42D-4358-A798-B74D745926C5}":"%PUBLIC%\\RecordedTV.library-ms",
"{B7534046-3ECB-4C18-BE4E-64CD4CB7D6AC}":"Recycle Bin",
"{8AD10C31-2ADB-4296-A8F7-E4701232C972}":"%windir%\\Resources",
"{C870044B-F49E-4126-A9C3-B52A1FF411E8}":"%LOCALAPPDATA%\\Microsoft\\Windows\\Ringtones",
"{3EB685DB-65F9-4CF6-A03A-E3EF65729F3D}":"%APPDATA% (%USERPROFILE%\\AppData\\Roaming)",
"{B250C668-F57D-4EE1-A63C-290EE7D1AA1F}":"%PUBLIC%\\Music\\Sample Music",
"{C4900540-2379-4C75-844B-64E6FAF8716B}":"%PUBLIC%\\Pictures\\Sample Pictures",
"{15CA69B3-30EE-49C1-ACE1-6B5EC372AFB5}":"%PUBLIC%\\Music\\Sample Playlists",
"{859EAD94-2E85-48AD-A71A-0969CB56A6CD}":"%PUBLIC%\\Videos\\Sample Videos",
"{4C5C32FF-BB9D-43b0-B5B4-2D72E54EAAA4}":"%USERPROFILE%\\Saved Games",
"{7d1d3a04-debb-4115-95cf-2f29da2920da}":"%USERPROFILE%\\Searches",
"{ee32e446-31ca-4aba-814f-a5ebd2fd6d5e}":"Offline Files",
"{98ec0e18-2098-4d44-8644-66979315a281}":"Microsoft Office Outlook",
"{190337d1-b8ca-4121-a639-6d472d16972a}":"Search Results",
"{8983036C-27C0-404B-8F08-102D10DCFD74}":"%APPDATA%\\Microsoft\\Windows\\SendTo",
"{7B396E54-9EC5-4300-BE0A-2482EBAE1A26}":"%ProgramFiles%\\Windows Sidebar\\Gadgets",
"{A75D362E-50FC-4fb7-AC2C-A8BEAA314493}":"%LOCALAPPDATA%\\Microsoft\\Windows Sidebar\\Gadgets",
"{625B53C3-AB48-4EC1-BA1F-A1EF4146FC19}":"%APPDATA%\\Microsoft\\Windows\\Start Menu",
"{B97D20BB-F46A-4C97-BA10-5E3608430854}":"%APPDATA%\\Microsoft\\Windows\\Start Menu\\Programs\\StartUp",
"{43668BF8-C14E-49B2-97C9-747784D784B7}":"Sync Center",
"{289a9a43-be44-4057-a41b-587a76d7e7f9}":"Sync Results",
"{0F214138-B1D3-4a90-BBA9-27CBC0C5389A}":"Sync Setup",
"{1AC14E77-02E7-4E5D-B744-2EB1AE5198B7}":"%windir%\\system32",
"{D65231B0-B2F1-4857-A4CE-A8E7C6EA7D27}":"%windir%\\system32",
"{A63293E8-664E-48DB-A079-DF759E0509F7}":"%APPDATA%\\Microsoft\\Windows\\Templates",
"{9E3995AB-1F9C-4F13-B827-48B24B6C7174}":"%APPDATA%\\Microsoft\\Internet Explorer\\Quick Launch\\User Pinned",
"{0762D272-C50A-4BB0-A382-697DCD729B80}":"%SystemDrive%\\Users",
"{5CD7AEE2-2219-4A67-B85D-6C9CE15660CB}":"%LOCALAPPDATA%\\Programs",
"{BCBD3057-CA5C-4622-B42D-BC56DB0AE516}":"%LOCALAPPDATA%\\Programs\\Common",
"{f3ce0f7c-4901-4acc-8648-d5d44b04ef8f}":"The user's full name",
"{A302545D-DEFF-464b-ABE8-61C8648D939B}":"Libraries",
"{18989B1D-99B5-455B-841C-AB7C74E4DDFC}":"%USERPROFILE%\\Videos",
"{491E922F-5643-4AF4-A7EB-4E7A138D8174}":"%APPDATA%\\Microsoft\\Windows\\Libraries\\Videos.library-ms",
"{F38BF404-1D43-42F2-9305-67DE0B28FC23}":"%windir%",
}
class UserAssist(interfaces_plugins.PluginInterface):
""""Print userassist registry keys and information"""
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self._win7 = None
@classmethod
def get_requirements(cls):
return [requirements.TranslationLayerRequirement(name = 'primary',
description = 'Kernel Address Space',
architectures = ["Intel32", "Intel64"]),
requirements.SymbolRequirement(name = "nt_symbols",
description = "Windows OS"),
requirements.IntRequirement(name = 'offset',
description = "Hive Offset",
default = None,
optional = True)]
def parse_userassist_data(self, reg_val):
"""Reads the raw data of a _CM_KEY_VALUE and returns a dict of userassist fields"""
reg_table_name = intermed.IntermediateSymbolTable.create(self.context,
self._config_path,
'windows',
'registry')
item = {
"id": renderers.UnparsableValue(),
"count": renderers.UnparsableValue(),
"focus": renderers.UnparsableValue(),
"time": renderers.UnparsableValue(),
"lastupdated": renderers.UnparsableValue(),
"rawdata": renderers.UnparsableValue(),
}
userassist_data = reg_val.decode_data()
if userassist_data is None:
return item
item["rawdata"] = userassist_data
if self._win7 is None:
# if OS is still unknown at this point, return the default item which just has the rawdata
return item
if self._win7:
userassist_symbol = reg_table_name + constants.BANG + "_VOL_USERASSIST_TYPES_7"
else:
userassist_symbol = reg_table_name + constants.BANG + "_VOL_USERASSIST_TYPES_XP"
if len(userassist_data) < self.context.symbol_space.get_type(userassist_symbol).size:
return item
userassist_layer_name = self.context.memory.free_layer_name("userassist_buffer")
buffer = BufferDataLayer(self.context, self._config_path, userassist_layer_name, userassist_data)
self.context.add_layer(buffer)
userassist_obj = self.context.object(userassist_symbol, userassist_layer_name, 0)
if hasattr(userassist_obj, "ID"):
item["id"] = int(userassist_obj.ID)
else:
item["id"] = renderers.NotApplicableValue()
if hasattr(userassist_obj, "Count"):
item["count"] = int(userassist_obj.Count)
else:
item["count"] = int(userassist_obj.CountStartingAtFive
if userassist_obj.CountStartingAtFive < 5
else userassist_obj.CountStartingAtFive - 5)
if hasattr(userassist_obj, "FocusCount"):
seconds = (userassist_obj.FocusTime + 500) / 1000.0
time = datetime.timedelta(seconds = seconds) if seconds > 0 else userassist_obj.FocusTime
item["focus"] = int(userassist_obj.FocusCount)
item["time"] = str(time)
else:
item["focus"] = renderers.NotApplicableValue()
item["time"] = renderers.NotApplicableValue()
item["lastupdated"] = utility.wintime_to_datetime(userassist_obj.LastUpdated.QuadPart)
return item
def _win7_or_later(self):
# TODO: change this when there is a better way of determining the OS version
virtual_layer_name = self.config["primary"]
virtual_layer = self.context.memory[virtual_layer_name]
kvo = virtual_layer.config["kernel_virtual_offset"]
ntkrnlmp = self.context.module(self.config["nt_symbols"],
layer_name=virtual_layer_name, offset=kvo)
# _KUSER_SHARED_DATA.CookiePad is in Windows 6.1 (Win7) and later
try:
_ = ntkrnlmp.get_type("_KUSER_SHARED_DATA").relative_child_offset("CookiePad")
return True
except IndexError:
return False
def list_userassist(self, hive: RegistryHive) -> typing.Generator:
"""Generate userassist data for a registry hive."""
hive_name = hive.hive.cast(self.config["nt_symbols"] + constants.BANG + "_CMHIVE").get_name()
if self._win7 is None:
self._win7 = self._win7_or_later()
userassist_node_path = hive.get_key("software\\microsoft\\windows\\currentversion\\explorer\\userassist",
return_list=True)
if not userassist_node_path:
vollog.warning("list_userassist did not find a valid node_path (or None)")
raise StopIteration
userassist_node = userassist_node_path[-1]
# iterate through the GUIDs under the userassist key
for guidkey in userassist_node.get_subkeys():
# each guid key should have a Count key in it
for countkey in guidkey.get_subkeys():
countkey_path = countkey.get_key_path()
countkey_last_write_time = utility.wintime_to_datetime(countkey.LastWriteTime.QuadPart)
# output the parent Count key
result = (0,
(renderers.format_hints.Hex(hive.hive_offset),
hive_name,
countkey_path,
countkey_last_write_time,
"Key",
renderers.NotApplicableValue(),
renderers.NotApplicableValue(),
renderers.NotApplicableValue(),
renderers.NotApplicableValue(),
renderers.NotApplicableValue(),
renderers.NotApplicableValue(),
renderers.NotApplicableValue()))
yield result
# output any subkeys under Count
for subkey in countkey.get_subkeys():
subkey_name = subkey.get_name()
result = (1, (renderers.format_hints.Hex(hive.hive_offset),
hive_name,
countkey_path,
countkey_last_write_time,
"Subkey",
subkey_name,
renderers.NotApplicableValue(),
renderers.NotApplicableValue(),
renderers.NotApplicableValue(),
renderers.NotApplicableValue(),
renderers.NotApplicableValue(),
renderers.NotApplicableValue(),))
yield result
# output any values under Count
for value in countkey.get_values():
value_name = value.get_name()
try:
value_name = codecs.encode(value_name, "rot_13")
except UnicodeDecodeError:
pass
if self._win7:
guid = value_name.split("\\")[0]
if guid in folder_guids:
value_name = value_name.replace(guid, folder_guids[guid])
userassist_data_dict = self.parse_userassist_data(value)
result = (1, (renderers.format_hints.Hex(hive.hive_offset),
hive_name,
countkey_path,
countkey_last_write_time,
"Value",
value_name,
userassist_data_dict["id"],
userassist_data_dict["count"],
userassist_data_dict["focus"],
userassist_data_dict["time"],
userassist_data_dict["lastupdated"],
format_hints.HexBytes(userassist_data_dict["rawdata"]),))
yield result
def _generator(self):
# get all the user hive offsets or use the one specified
if self.config.get('offset', None) is None:
try:
import volatility.plugins.windows.hivelist as hivelist
plugin_config_path = self.make_subconfig(primary = self.config['primary'],
nt_symbols = self.config['nt_symbols'],
filter = "ntuser.dat")
plugin = hivelist.HiveList(self.context, plugin_config_path)
hive_offsets = [hive.vol.offset for hive in plugin.list_hives()]
except:
vollog.warning("Unable to import windows.hivelist plugin, please provide a hive offset")
raise ValueError("Unable to import windows.hivelist plugin, please provide a hive offset")
else:
hive_offsets = [self.config['offset']]
for hive_offset in hive_offsets:
# Construct the hive
reg_config_path = self.make_subconfig(hive_offset=hive_offset,
base_layer=self.config['primary'],
nt_symbols=self.config['nt_symbols'])
try:
hive = RegistryHive(self.context, reg_config_path, name='hive' + hex(hive_offset))
hive_name = hive.hive.cast(self.config["nt_symbols"] + constants.BANG + "_CMHIVE").get_name()
self.context.memory.add_layer(hive)
yield from self.list_userassist(hive)
except (exceptions.PagedInvalidAddressException, KeyError) as excp:
if type(excp) == KeyError:
vollog.debug(
"Key '{}' not found in Hive at offset {}.".format("software\\microsoft\\windows\\currentversion\\explorer\\userassist", hex(hive_offset)))
else:
vollog.debug("Invalid address identified in Hive: {}".format(hex(excp.invalid_address)))
result = (0,
(renderers.format_hints.Hex(hive.hive_offset),
hive_name,
renderers.UnreadableValue(),
renderers.UnreadableValue(),
renderers.UnreadableValue(),
renderers.UnreadableValue(),
renderers.UnreadableValue(),
renderers.UnreadableValue(),
renderers.UnreadableValue(),
renderers.UnreadableValue(),
renderers.UnreadableValue(),
renderers.UnreadableValue()))
yield result
def run(self):
return renderers.TreeGrid([("Hive Offset", renderers.format_hints.Hex),
("Hive Name", str),
("Path", str),
("Last Write Time", datetime.datetime),
("Type", str),
("Name", str),
("ID", int),
("Count", int),
("Focus Count", int),
("Time Focused", str),
("Last Updated", datetime.datetime),
("Raw Data", format_hints.HexBytes)],
self._generator())