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108 lines
5.4 KiB
Python
108 lines
5.4 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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from typing import List
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from volatility.framework import interfaces, exceptions, constants, renderers
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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.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 ProcDump(interfaces.plugins.PluginInterface):
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"""Dumps process executable images."""
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_version = (1, 1, 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.IntRequirement(name = 'pid',
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description = "Process ID to include (all other processes are excluded)",
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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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@classmethod
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def process_dump(cls, context: interfaces.context.ContextInterface, kernel_table_name: str, pe_table_name: str,
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proc: interfaces.objects.ObjectInterface) -> 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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kernel_table_name: the name for the symbol table containing the kernel's symbols
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pe_table_name: the name for the symbol table containing the PE format symbols
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proc: the process object whose memory should be output
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Returns:
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A FileInterface object containing the complete data for the process
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"""
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proc_id = proc.UniqueProcessId
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proc_layer_name = proc.add_process_layer()
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peb = context.object(kernel_table_name + constants.BANG + "_PEB",
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layer_name = proc_layer_name,
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offset = proc.Peb)
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dos_header = context.object(pe_table_name + constants.BANG + "_IMAGE_DOS_HEADER",
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offset = peb.ImageBaseAddress,
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layer_name = proc_layer_name)
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filedata = interfaces.plugins.FileInterface("pid.{0}.{1:#x}.dmp".format(proc.UniqueProcessId,
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peb.ImageBaseAddress))
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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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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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try:
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proc_id = proc.UniqueProcessId
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process_name = utility.array_to_string(proc.ImageFileName)
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filedata = self.process_dump(self.context, self.config["nt_symbols"], pe_table_name, proc)
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self.produce_file(filedata)
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result_text = "Stored {}".format(filedata.preferred_filename)
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except ValueError:
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result_text = "PE parsing error"
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except exceptions.SwappedInvalidAddressException as exp:
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result_text = "Process {}: Required memory at {:#x} is inaccessible (swapped)".format(
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proc_id, exp.invalid_address)
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except exceptions.PagedInvalidAddressException as exp:
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result_text = "Process {}: Required memory at {:#x} is not valid (process exited?)".format(
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proc_id, exp.invalid_address)
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except exceptions.InvalidAddressException as exp:
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result_text = "Process {}: Required memory at {:#x} is not valid (incomplete layer {}?)".format(
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proc_id, exp.invalid_address, exp.layer_name)
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yield (0, (proc.UniqueProcessId, process_name, result_text))
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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), ("Result", 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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