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80 lines
4.2 KiB
Python
80 lines
4.2 KiB
Python
# This file is Copyright 2020 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 exceptions, renderers, interfaces
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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 pslist
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vollog = logging.getLogger(__name__)
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class Memdump(interfaces.plugins.PluginInterface):
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"""Dump the addressable memory for a process"""
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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.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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]
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def _generator(self, procs):
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for proc in procs:
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data = b""
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process_name = proc.ImageFileName.cast("string",
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max_length = proc.ImageFileName.vol.count,
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errors = 'replace')
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pid = "Unknown"
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try:
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pid = proc.UniqueProcessId
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offset = format_hints.Hex(proc.vol.offset)
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filename = str(pid) + "." + str(offset)
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proc_layer_name = proc.add_process_layer()
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proc_layer = self.context.layers[proc_layer_name]
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except exceptions.InvalidAddressException as excp:
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vollog.debug(
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"Process {}: invalid address {} in layer {}".format(pid, excp.invalid_address, excp.layer_name))
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continue
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# Create file for writing
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filedata = interfaces.plugins.FileInterface("{}.dmp".format(filename))
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for mapval in proc_layer.mapping(0x0, proc_layer.maximum_address, ignore_errors = True):
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offset, size, mapped_offset, _, maplayer = mapval
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data = proc_layer.read(offset, size, pad = True)
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try:
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filedata.data.write(data)
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except exceptions.InvalidAddressException:
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vollog.debug("Unable to write {}'s address {} [ {} ]to {}.dmp".format(process_name, offset,
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proc.UniqueProcessId,
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proc.UniqueProcessId))
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continue
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try:
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result_text = "Writing {} [ {} ] to {}.dmp".format(process_name, proc.UniqueProcessId, filename)
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self.produce_file(filedata)
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except exceptions.InvalidAddressException:
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result_text = "Unable to write {} [ {} ]to {}.dmp".format(process_name, proc.UniqueProcessId, filename)
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yield (0, (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([("Creating the following files:", 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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