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100 lines
4.8 KiB
Python
100 lines
4.8 KiB
Python
# This file is Copyright 2019 Volatility Foundation and licensed under the Volatility Software License 1.0
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# which is available at https://www.volatilityfoundation.org/license/vsl-v1.0
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import logging
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import os, json
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from typing import Callable, List, Generator, Iterable
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from volatility.framework import renderers, interfaces, objects, exceptions, constants
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from volatility.framework.configuration import requirements
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from volatility.framework.objects import utility
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from volatility.framework.renderers import format_hints
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from volatility.plugins.windows import pslist
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vollog = logging.getLogger(__name__)
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class Privs(interfaces.plugins.PluginInterface):
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"""Lists process token privileges"""
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_version = (1, 0, 0)
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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# Find the sids json path (or raise error if its not in the plugin directory).
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for plugin_dir in constants.PLUGINS_PATH:
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sids_json_file_name = os.path.join(plugin_dir, os.path.join("windows", "sids_and_privileges.json"))
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if os.path.exists(sids_json_file_name):
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break
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else:
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vollog.log(constants.LOGLEVEL_VVV, 'sids_and_privileges.json file is missing plugin error')
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raise RuntimeError("The sids_and_privileges.json file missed from you plugin directory")
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# Get service sids dictionary (we need only the service sids).
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with open(sids_json_file_name, 'r') as file_handle:
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temp_json = json.load(file_handle)['privileges']
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self.privilege_info = {int(priv_num):temp_json[priv_num] for priv_num in temp_json}
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@classmethod
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def get_requirements(cls) -> List[interfaces.configuration.RequirementInterface]:
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# Since we're calling the plugin, make sure we have the plugin's requirements
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return [requirements.TranslationLayerRequirement(name = 'primary',
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description = 'Memory layer for the kernel',
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architectures = ["Intel32", "Intel64"]),
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requirements.SymbolTableRequirement(name = "nt_symbols", description = "Windows kernel symbols"),
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requirements.ListRequirement(name = 'pid',
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description = 'Filter on specific process IDs',
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element_type = int,
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optional = True),
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requirements.PluginRequirement(name = 'pslist', plugin = pslist.PsList, version = (1, 0, 0)),
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]
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def _generator(self, procs):
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for task in procs:
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try:
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process_token = task.Token.dereference().cast("_TOKEN")
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except exceptions.InvalidAddressException:
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vollog.log(constants.LOGLEVEL_VVV, 'Skeep invalid token.')
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continue
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for value, present, enabled, default in process_token.privileges():
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# Skip privileges whose bit positions cannot be
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# translated to a privilege name
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if not self.privilege_info.get(int(value)):
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vollog.log(constants.LOGLEVEL_VVV, 'Skeep invalid privilege ({}).'.format(value))
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continue
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name, desc = self.privilege_info.get(int(value))
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# Set the attributes
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attributes = []
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if present:
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attributes.append("Present")
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if enabled:
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attributes.append("Enabled")
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if default:
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attributes.append("Default")
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yield (0,
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[int(task.UniqueProcessId),
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objects.utility.array_to_string(task.ImageFileName),
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int(value),
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str(name),
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",".join(attributes),
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str(desc)])
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def run(self):
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filter_func = pslist.PsList.create_pid_filter(self.config.get('pid', None))
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return renderers.TreeGrid([("PID", int), ("Process", str), ("Value", int), ("Privilege", str),
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("Attributes", str), ("Description", str)],
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self._generator(
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pslist.PsList.list_processes(context = self.context,
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layer_name = self.config['primary'],
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symbol_table = self.config['nt_symbols'],
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filter_func = filter_func)))
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