mirror of
https://github.com/volatilityfoundation/volatility3.git
synced 2026-08-29 11:19:40 +02:00
David McDonald
5c6107bf33
This updates a whole host of method calls to pass keyword arguments instead of positional arguments.
107 lines
3.9 KiB
Python
107 lines
3.9 KiB
Python
# This file is Copyright 2024 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, Generator
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from volatility3.framework import interfaces, exceptions
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from volatility3.framework.configuration import requirements
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from volatility3.plugins.windows import thrdscan, ssdt, modules
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vollog = logging.getLogger(__name__)
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class Threads(thrdscan.ThrdScan):
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"""Lists process threads"""
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_required_framework_version = (2, 4, 0)
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# 2.0.0 - changed the signature of `list_orphan_kernel_threads`
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_version = (2, 0, 0)
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self.implementation = self.list_orphan_kernel_threads
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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.ModuleRequirement(
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name="kernel",
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description="Windows kernel",
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architectures=["Intel32", "Intel64"],
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),
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requirements.PluginRequirement(
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name="thrdscan", plugin=thrdscan.ThrdScan, version=(1, 1, 0)
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),
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requirements.PluginRequirement(
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name="ssdt", plugin=ssdt.SSDT, version=(2, 0, 0)
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),
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requirements.PluginRequirement(
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name="modules", plugin=modules.Modules, version=(3, 0, 0)
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),
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]
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@classmethod
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def list_orphan_kernel_threads(
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cls,
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context: interfaces.context.ContextInterface,
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kernel_module_name: str,
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) -> Generator[interfaces.objects.ObjectInterface, None, None]:
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"""Yields thread objects of kernel threads that do not map to a module
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Args:
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cls
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context: the context to operate upon
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module_name: name of the module to use for scanning
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Returns:
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A generator of thread objects of orphaned threads
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"""
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collection = ssdt.SSDT.build_module_collection(
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context=context,
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kernel_module_name=kernel_module_name,
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)
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kernel_space_start = modules.Modules.get_kernel_space_start(
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context, kernel_module_name
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)
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for thread in thrdscan.ThrdScan.scan_threads(context, kernel_module_name):
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# We don't want smeared or terminated threads
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# So we access the owning process (which could also be terminated or smeared)
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# Plus check the start address holding page
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try:
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proc = thread.owning_process()
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pid = proc.UniqueProcessId
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ppid = proc.InheritedFromUniqueProcessId
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thread_start = thread.StartAddress
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except (AttributeError, exceptions.InvalidAddressException):
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continue
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# we only care about kernel threads, 4 = System
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# previous methods for determining if a thread was a kernel thread
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# such as bit fields and flags are not stable in Win10+
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# so we check if the thread is from the kernel itself or one its child
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# kernel processes (MemCompression, Regsitry, ...)
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if pid != 4 and ppid != 4:
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continue
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# if the thread has an exit time or terminated (4) state, then skip it
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if thread.ExitTime.QuadPart > 0 or thread.Tcb.State == 4:
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continue
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# threads pointing into userland, which is from smeared or terminated threads
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if thread_start < kernel_space_start:
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continue
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module_symbols = list(
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collection.get_module_symbols_by_absolute_location(thread_start)
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)
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# alert on threads that do not map to a module
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if not module_symbols:
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yield thread
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