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74 lines
3.0 KiB
Python
74 lines
3.0 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 inspect
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from typing import Callable, Dict
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from volatility.cli.volshell import shellplugin
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from volatility.framework.configuration import requirements
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class Volshell(shellplugin.Volshell):
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"""Shell environment to directly interact with a windows memory image"""
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@classmethod
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def get_requirements(cls):
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return (super().get_requirements() + [
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requirements.SymbolTableRequirement(name = "nt_symbols", description = "Windows kernel symbols"),
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requirements.IntRequirement(name = 'pid', description = "Process ID", optional = True)
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])
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def list_processes(self):
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"""Lists all the processes in the primary layer"""
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# We only use the object factory to demonstrate how to use one
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layer_name = self.config['primary']
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kvo = self.context.layers[layer_name].config['kernel_virtual_offset']
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ntkrnlmp = self.context.module(self.config['nt_symbols'], layer_name = layer_name, offset = kvo)
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ps_aph_offset = ntkrnlmp.get_symbol("PsActiveProcessHead").address
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list_entry = ntkrnlmp.object(object_type = "_LIST_ENTRY", offset = ps_aph_offset)
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# This is example code to demonstrate how to use symbol_space directly, rather than through a module:
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#
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# ```
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# reloff = self.context.symbol_space.get_type(
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# self.config['nt_symbols'] + constants.BANG + "_EPROCESS").relative_child_offset(
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# "ActiveProcessLinks")
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# ```
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#
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# Note: "nt!_EPROCESS" could have been used, but would rely on the "nt" symbol table not already
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# having been present. Strictly, the value of the requirement should be joined with the BANG character
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# defined in the constants file
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reloff = ntkrnlmp.get_type("_EPROCESS").relative_child_offset("ActiveProcessLinks")
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eproc = ntkrnlmp.object(object_type = "_EPROCESS", offset = list_entry.vol.offset - reloff, absolute = True)
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for proc in eproc.ActiveProcessLinks:
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yield proc
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def load_functions(self) -> Dict[str, Callable]:
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result = super().load_functions()
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result.update({'ps': lambda: list(self.list_processes())})
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return result
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def run(self, additional_locals = None):
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# Determine locals
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curframe = inspect.currentframe()
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# Provide some OS-agnostic convenience elements for ease
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layer_name = self.config['primary']
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kvo = self.context.layers[layer_name].config['kernel_virtual_offset']
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nt = self.context.module(self.config['nt_symbols'], layer_name = layer_name, offset = kvo)
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ps = lambda: list(self.list_processes())
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pid = self.config.get('pid', None)
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eproc = None
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if pid:
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for _x in ps():
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if _x.UniqueProcessId == pid:
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eproc = _x
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break
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return super().run(curframe.f_locals)
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