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77 lines
3.3 KiB
Python
77 lines
3.3 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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#
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from typing import Iterable
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from volatility.framework import renderers, interfaces, exceptions
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from volatility.framework.configuration import requirements
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from volatility.framework.renderers import format_hints
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from volatility.plugins.windows import poolscanner
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class DriverScan(interfaces.plugins.PluginInterface):
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"""Scans for drivers present in a particular windows memory image."""
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_version = (1, 0, 0)
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@classmethod
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def get_requirements(cls):
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return [
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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.PluginRequirement(name = 'poolscanner', plugin = poolscanner.PoolScanner, version = (1, 0, 0)),
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]
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@classmethod
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def scan_drivers(cls,
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context: interfaces.context.ContextInterface,
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layer_name: str,
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symbol_table: str) -> \
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Iterable[interfaces.objects.ObjectInterface]:
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"""Scans for drivers using the poolscanner module and constraints.
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Args:
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context: The context to retrieve required elements (layers, symbol tables) from
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layer_name: The name of the layer on which to operate
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symbol_table: The name of the table containing the kernel symbols
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Returns:
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A list of Driver objects as found from the `layer_name` layer based on Driver pool signatures
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"""
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constraints = poolscanner.PoolScanner.builtin_constraints(symbol_table, [b'Dri\xf6', b'Driv'])
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for result in poolscanner.PoolScanner.generate_pool_scan(context, layer_name, symbol_table, constraints):
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_constraint, mem_object, _header = result
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yield mem_object
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def _generator(self):
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for driver in self.scan_drivers(self.context, self.config['primary'], self.config['nt_symbols']):
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try:
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driver_name = driver.get_driver_name()
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except exceptions.InvalidAddressException:
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driver_name = renderers.NotApplicableValue()
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try:
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service_key = driver.DriverExtension.ServiceKeyName.String
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except exceptions.InvalidAddressException:
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service_key = renderers.NotApplicableValue()
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try:
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name = driver.DriverName.String
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except exceptions.InvalidAddressException:
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name = renderers.NotApplicableValue()
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yield (0, (format_hints.Hex(driver.vol.offset), format_hints.Hex(driver.DriverStart),
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format_hints.Hex(driver.DriverSize), service_key, driver_name, name))
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def run(self):
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return renderers.TreeGrid([("Offset", format_hints.Hex),
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("Start", format_hints.Hex), ("Size", format_hints.Hex), ("Service Key", str),
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("Driver Name", str), ("Name", str)], self._generator())
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