# This file is Copyright 2019 Volatility Foundation and licensed under the Volatility Software License 1.0
# which is available at https://www.volatilityfoundation.org/license/vsl-v1.0
#
import datetime
from typing import Iterable
from volatility.framework import renderers, interfaces
from volatility.framework.configuration import requirements
from volatility.framework.renderers import format_hints
from volatility.plugins import timeliner
from volatility.plugins.windows import poolscanner
[docs]class PsScan(interfaces.plugins.PluginInterface, timeliner.TimeLinerInterface):
"""Scans for processes present in a particular windows memory image."""
[docs] @classmethod
def get_requirements(cls):
return [
requirements.TranslationLayerRequirement(name = 'primary',
description = 'Memory layer for the kernel',
architectures = ["Intel32", "Intel64"]),
requirements.SymbolTableRequirement(name = "nt_symbols", description = "Windows kernel symbols"),
]
[docs] @classmethod
def scan_processes(cls,
context: interfaces.context.ContextInterface,
layer_name: str,
symbol_table: str) -> \
Iterable[interfaces.objects.ObjectInterface]:
"""Scans for processes using the poolscanner module and constraints.
Args:
context: The context to retrieve required elements (layers, symbol tables) from
layer_name: The name of the layer on which to operate
symbol_table: The name of the table containing the kernel symbols
Returns:
A list of processes found by scanning the `layer_name` layer for process pool signatures
"""
constraints = poolscanner.PoolScanner.builtin_constraints(symbol_table, [b'Pro\xe3', b'Proc'])
for result in poolscanner.PoolScanner.generate_pool_scan(context, layer_name, symbol_table, constraints):
_constraint, mem_object, _header = result
yield mem_object
def _generator(self):
for proc in self.scan_processes(self.context, self.config['primary'], self.config['nt_symbols']):
yield (0, (proc.UniqueProcessId, proc.InheritedFromUniqueProcessId,
proc.ImageFileName.cast("string", max_length = proc.ImageFileName.vol.count, errors = 'replace'),
format_hints.Hex(proc.vol.offset), proc.ActiveThreads, proc.get_handle_count(),
proc.get_session_id(), proc.get_is_wow64(), proc.get_create_time(), proc.get_exit_time()))
[docs] def generate_timeline(self):
for row in self._generator():
_depth, row_data = row
description = "Process: {} ({})".format(row_data[2], row_data[3])
yield (description, timeliner.TimeLinerType.CREATED, row_data[8])
yield (description, timeliner.TimeLinerType.MODIFIED, row_data[9])
[docs] def run(self):
return renderers.TreeGrid([("PID", int), ("PPID", int), ("ImageFileName", str), ("Offset", format_hints.Hex),
("Threads", int), ("Handles", int), ("SessionId", int), ("Wow64", bool),
("CreateTime", datetime.datetime), ("ExitTime", datetime.datetime)],
self._generator())