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https://github.com/volatilityfoundation/volatility3.git
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66 lines
2.4 KiB
Python
66 lines
2.4 KiB
Python
# This file is Copyright 2020 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
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from volatility3.framework import interfaces, renderers, layers
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from volatility3.framework.configuration import requirements
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from volatility3.framework.layers import scanners
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from volatility3.framework.renderers import format_hints
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vollog = logging.getLogger(__name__)
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class Banners(interfaces.plugins.PluginInterface):
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"""Attempts to identify potential linux banners in an image"""
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_required_framework_version = (2, 0, 0)
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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(
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name="primary", description="Memory layer to scan"
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)
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]
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def _generator(self):
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layer = self.context.layers[self.config["primary"]]
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if isinstance(layer, layers.intel.Intel):
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layer = self.context.layers[layer.config["memory_layer"]]
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for offset, banner in self.locate_banners(self.context, layer.name):
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yield 0, (offset, banner)
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@classmethod
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def locate_banners(
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cls, context: interfaces.context.ContextInterface, layer_name: str
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):
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"""Identifies banners from a memory image"""
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layer = context.layers[layer_name]
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for offset in layer.scan(
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context=context,
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scanner=scanners.RegExScanner(
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rb"(Linux version|Darwin Kernel Version) [0-9]+\.[0-9]+\.[0-9]+"
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),
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):
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data = layer.read(offset, 0xFFF)
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data_index = data.find(b"\x00")
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if data_index > 0:
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data = data[:data_index].strip()
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failed = [
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char
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for char in data
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if char
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not in b" #()+,;/-.0123456789:@ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz~"
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]
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if not failed:
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yield format_hints.Hex(offset), str(
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data, encoding="latin-1", errors="?"
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)
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def run(self):
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return renderers.TreeGrid(
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[("Offset", format_hints.Hex), ("Banner", str)], self._generator()
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)
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