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https://github.com/volatilityfoundation/volatility3.git
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97 lines
3.8 KiB
Python
97 lines
3.8 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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"""In-memory artifacts from OSX systems."""
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from typing import Iterator, Tuple, Any, Generator, 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.interfaces import plugins
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from volatility.framework.objects import utility
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from volatility.plugins.mac import tasks
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class Psaux(plugins.PluginInterface):
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"""Recovers program command line arguments."""
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@classmethod
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def get_requirements(cls) -> List[interfaces.configuration.RequirementInterface]:
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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 = "darwin", description = "Mac kernel symbols"),
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requirements.PluginRequirement(name = 'tasks', plugin = tasks.Tasks, version = (1, 0, 0))
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]
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def _generator(self, tasks: Iterator[Any]) -> Generator[Tuple[int, Tuple[int, str, int, str]], None, None]:
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for task in tasks:
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proc_layer_name = task.add_process_layer()
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if proc_layer_name is None:
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continue
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proc_layer = self.context.layers[proc_layer_name]
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argsstart = task.user_stack - task.p_argslen
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if not proc_layer.is_valid(argsstart) or task.p_argslen == 0 or task.p_argc == 0:
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continue
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# Add one because the first two are usually duplicates
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argc = task.p_argc + 1
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# smear protection
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if argc > 1024:
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continue
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task_name = utility.array_to_string(task.p_comm)
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args = [] # type: List[bytes]
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while argc > 0:
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try:
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arg = proc_layer.read(argsstart, 256)
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except exceptions.InvalidAddressException:
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break
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idx = arg.find(b'\x00')
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if idx != -1:
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arg = arg[:idx]
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argsstart += len(str(arg)) + 1
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# deal with the stupid alignment (leading nulls) and arg duplication
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if len(args) == 0:
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while argsstart < task.user_stack:
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try:
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check = proc_layer.read(argsstart, 1)
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except exceptions.InvalidAddressException:
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break
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if check != b"\x00":
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break
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argsstart = argsstart + 1
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args.append(arg)
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# also check for initial duplicates since OS X is painful
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elif arg != args[0]:
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args.append(arg)
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argc = argc - 1
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args_str = " ".join([s.decode("utf-8") for s in args])
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yield (0, (task.p_pid, task_name, task.p_argc, args_str))
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def run(self) -> renderers.TreeGrid:
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filter_func = tasks.Tasks.create_pid_filter([self.config.get('pid', None)])
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return renderers.TreeGrid([("PID", int), ("Process", str), ("Argc", int), ("Arguments", str)],
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self._generator(
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tasks.Tasks.list_tasks(self.context,
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self.config['primary'],
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self.config['darwin'],
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filter_func = filter_func)))
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