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128 lines
6.2 KiB
Python
128 lines
6.2 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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import logging
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import ntpath
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from typing import List
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from volatility.framework import exceptions, renderers, interfaces, constants
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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.framework.symbols import intermed
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from volatility.framework.symbols.windows.extensions import pe
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from volatility.plugins.windows import pslist
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vollog = logging.getLogger(__name__)
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class DllList(interfaces.plugins.PluginInterface):
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"""Lists the loaded modules 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) -> 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 [
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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 = 'pslist', plugin = pslist.PsList, version = (1, 0, 0)),
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requirements.ListRequirement(name = 'pid',
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element_type = int,
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description = "Process IDs to include (all other processes are excluded)",
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optional = True),
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requirements.BooleanRequirement(name = 'dump',
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description = "Extract listed DLLs",
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default = False,
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optional = True)
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]
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@classmethod
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def dump_pe(cls,
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context: interfaces.context.ContextInterface,
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pe_table_name: str,
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dll_entry: interfaces.objects.ObjectInterface,
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layer_name: str = None) -> interfaces.plugins.FileInterface:
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"""Extracts the complete data for a process as a FileInterface
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Args:
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context: the context to operate upon
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pe_table_name: the name for the symbol table containing the PE format symbols
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dll_entry: the object representing the module
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layer_name: the layer that the DLL lives within
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Returns:
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A FileInterface object containing the complete data for the DLL or None in the case of failure"""
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filedata = None
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try:
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try:
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name = dll_entry.FullDllName.get_string()
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except exceptions.InvalidAddressException:
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name = 'UnreadbleDLLName'
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if layer_name is None:
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layer_name = dll_entry.vol.layer_name
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filedata = interfaces.plugins.FileInterface(
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"{0}.{1:#x}.{2:#x}.dmp".format(ntpath.basename(name), dll_entry.vol.offset, dll_entry.DllBase))
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dos_header = context.object(pe_table_name + constants.BANG + "_IMAGE_DOS_HEADER",
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offset = dll_entry.DllBase,
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layer_name = layer_name)
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for offset, data in dos_header.reconstruct():
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filedata.data.seek(offset)
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filedata.data.write(data)
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except Exception as excp:
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vollog.debug("Unable to dump dll at offset {}: {}".format(dll_entry.DllBase, excp))
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return filedata
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def _generator(self, procs):
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pe_table_name = intermed.IntermediateSymbolTable.create(self.context,
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self.config_path,
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"windows",
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"pe",
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class_types = pe.class_types)
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for proc in procs:
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proc_id = proc.UniqueProcessId
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proc_layer_name = proc.add_process_layer()
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for entry in proc.load_order_modules():
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BaseDllName = FullDllName = renderers.UnreadableValue()
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try:
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BaseDllName = entry.BaseDllName.get_string()
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# We assume that if the BaseDllName points to an invalid buffer, so will FullDllName
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FullDllName = entry.FullDllName.get_string()
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except exceptions.InvalidAddressException:
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pass
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dumped = False
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if self.config['dump']:
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filedata = self.dump_pe(self.context, pe_table_name, entry, proc_layer_name)
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if filedata:
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filedata.preferred_filename = "pid.{0}.".format(proc_id) + filedata.preferred_filename
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dumped = True
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self.produce_file(filedata)
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yield (0, (proc.UniqueProcessId,
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proc.ImageFileName.cast("string",
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max_length = proc.ImageFileName.vol.count,
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errors = 'replace'), format_hints.Hex(entry.DllBase),
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format_hints.Hex(entry.SizeOfImage), BaseDllName, FullDllName, dumped))
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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), ("Base", format_hints.Hex),
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("Size", format_hints.Hex), ("Name", str), ("Path", str), ("Dumped", bool)],
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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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