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106 lines
5.1 KiB
Python
106 lines
5.1 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 renderers, interfaces, exceptions
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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.plugins.windows import pslist, vadinfo
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vollog = logging.getLogger(__name__)
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class VadDump(interfaces.plugins.PluginInterface):
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"""Dumps process memory ranges."""
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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 [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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# TODO: Convert this to a ListRequirement so that people can filter on sets of ranges
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requirements.IntRequirement(name = 'address',
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description = "Process virtual memory address to include " \
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"(all other address ranges are excluded). This must be " \
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"a base address, not an address within the desired range.",
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optional = True),
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requirements.IntRequirement(
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name = 'pid', 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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requirements.PluginRequirement(name = 'vadinfo', plugin = vadinfo.VadInfo, version = (1, 0, 0)),
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]
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@classmethod
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def vad_dump(cls, context: interfaces.context.ContextInterface, layer_name: str, vad: interfaces.objects.ObjectInterface) -> bytes:
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"""
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Returns VAD content
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"""
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tmp_data = b""
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proc_layer = context.layers[layer_name]
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chunk_size = 1024 * 1024 * 10
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offset = vad.get_start()
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out_of_range = vad.get_start() + vad.get_end()
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# print("walking from {:x} to {:x} | {:x}".format(offset, out_of_range, out_of_range-offset))
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while offset < out_of_range:
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to_read = min(chunk_size, out_of_range - offset)
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data = proc_layer.read(offset, to_read, pad = True)
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if not data:
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break
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tmp_data += data
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offset += to_read
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return tmp_data
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def _generator(self, procs):
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filter_func = lambda _: False
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if self.config.get('address', None) is not None:
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filter_func = lambda x: x.get_start() not in [self.config['address']]
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for proc in procs:
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process_name = utility.array_to_string(proc.ImageFileName)
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proc_id = "Unknown"
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try:
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proc_id = proc.UniqueProcessId
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proc_layer_name = proc.add_process_layer()
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except exceptions.InvalidAddressException as excp:
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vollog.debug("Process {}: invalid address {} in layer {}".format(proc_id, excp.invalid_address,
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excp.layer_name))
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continue
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proc_layer = self.context.layers[proc_layer_name]
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for vad in vadinfo.VadInfo.list_vads(proc, filter_func = filter_func):
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try:
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filedata = interfaces.plugins.FileInterface("pid.{0}.vad.{1:#x}-{2:#x}.dmp".format(
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proc.UniqueProcessId, vad.get_start(), vad.get_end()))
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data = self.vad_dump(self.context, proc_layer_name, vad)
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filedata.data.write(data)
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self.produce_file(filedata)
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result_text = "Stored {}".format(filedata.preferred_filename)
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except exceptions.InvalidAddressException:
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result_text = "Unable to dump {0:#x} - {1:#x}".format(vad.get_start(), vad.get_end())
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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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