mirror of
https://github.com/volatilityfoundation/volatility3.git
synced 2026-08-22 14:32:21 +02:00
Mike Auty
6fc12e9b01
So this feels like a contentious decision. It'd be awesome to have the options for the methods stored along-side the methods themselves. The downside with this is that the thing accessing the configuration data is always the plugin, so it's the plugin that must have requested the configuration option. This is also important in case the description of the configuration option needs modifying for clarity or providing context for how it will be used. If the interface changes, all plugins calling the plugin methods will need updating, so the config options can be updated if necessary.
125 lines
6.4 KiB
Python
125 lines
6.4 KiB
Python
# This file was contributed to the Volatility Framework Version 3.
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# Copyright (C) 2018 Volatility Foundation.
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#
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# THE LICENSED WORK IS PROVIDED UNDER THE TERMS OF THE Volatility Contributors
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# Public License V1.0("LICENSE") AS FIRST COMPLETED BY: Volatility Foundation,
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# Inc. ANY USE, PUBLIC DISPLAY, PUBLIC PERFORMANCE, REPRODUCTION OR DISTRIBUTION
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# OF, OR PREPARATION OF SUBSEQUENT WORKS, DERIVATIVE WORKS OR DERIVED WORKS BASED
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# ON, THE LICENSED WORK CONSTITUTES RECIPIENT'S ACCEPTANCE OF THIS LICENSE AND ITS
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# TERMS, WHETHER OR NOT SUCH RECIPIENT READS THE TERMS OF THE LICENSE. "LICENSED
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# WORK,” “RECIPIENT" AND “DISTRIBUTOR" ARE DEFINED IN THE LICENSE. A COPY OF THE
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# LICENSE IS LOCATED IN THE TEXT FILE ENTITLED "LICENSE.txt" ACCOMPANYING THE
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# CONTENTS OF THIS FILE. IF A COPY OF THE LICENSE DOES NOT ACCOMPANY THIS FILE, A
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# COPY OF THE LICENSE MAY ALSO BE OBTAINED AT THE FOLLOWING WEB SITE:
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# https://www.volatilityfoundation.org/license/vcpl_v1.0
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#
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# Software distributed under the License is distributed on an "AS IS" basis,
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# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for the
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# specific language governing rights and limitations under the License.
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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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import volatility.plugins.windows.pslist as pslist
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import volatility.plugins.windows.vadinfo as vadinfo
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import volatility.framework.constants as constants
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import volatility.framework.interfaces.plugins as interfaces_plugins
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from volatility.framework import interfaces
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from volatility.framework import 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 import extensions
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vollog = logging.getLogger(__name__)
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class DllDump(interfaces_plugins.PluginInterface):
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"""Dumps process memory ranges as DLLs"""
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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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]
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def _generator(self, procs):
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pe_table_name = intermed.IntermediateSymbolTable.create(
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self.context, self.config_path, "windows", "pe", class_types = extensions.pe.class_types)
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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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# TODO: what kind of exceptions could this raise and what should we do?
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proc_layer_name = proc.add_process_layer()
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for vad in vadinfo.VadInfo.list_vads(proc, filter_func = filter_func):
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# this parameter is inherited from the VadInfo plugin. if a user specifies
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# an address, then it bypasses the DLL identification heuristics
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if self.config.get("address", None) is None:
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# rather than relying on the PEB for DLLs, which can be swapped,
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# it requires special handling on wow64 processes, and its
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# unreliable from an integrity standpoint, let's use the VADs instead
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protection_string = vad.get_protection(
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vadinfo.VadInfo.protect_values(self.context, self.config['primary'], self.config['nt_symbols']),
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vadinfo.winnt_protections)
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# DLLs are write copy...
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if protection_string != "PAGE_EXECUTE_WRITECOPY":
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continue
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# DLLs have mapped files...
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if isinstance(vad.get_file_name(), interfaces.renderers.BaseAbsentValue):
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continue
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try:
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filedata = interfaces_plugins.FileInterface("pid.{0}.{1}.{2:#x}.dmp".format(
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proc.UniqueProcessId, ntpath.basename(vad.get_file_name()), vad.get_start()))
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dos_header = self.context.object(
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pe_table_name + constants.BANG + "_IMAGE_DOS_HEADER",
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offset = vad.get_start(),
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layer_name = proc_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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self.produce_file(filedata)
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result_text = "Stored {}".format(filedata.preferred_filename)
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except Exception:
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result_text = "Unable to dump PE at {0:#x}".format(vad.get_start())
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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(
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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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