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51 lines
2.2 KiB
Python
51 lines
2.2 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 volatility.framework import interfaces, renderers, layers
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from volatility.framework.configuration import requirements
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from volatility.framework.layers import scanners
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from volatility.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 [requirements.TranslationLayerRequirement(name = 'primary', description = 'Memory layer to scan')]
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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(cls, context: interfaces.context.ContextInterface, layer_name: str):
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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(rb"(Linux version|Darwin Kernel Version) [0-9]+\.[0-9]+\.[0-9]+")):
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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 for char in data
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if char 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(data, encoding = 'latin-1', errors = '?')
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def run(self):
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return renderers.TreeGrid([("Offset", format_hints.Hex), ("Banner", str)], self._generator())
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