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75 lines
3.2 KiB
Python
75 lines
3.2 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 volatility.framework.interfaces.plugins as interfaces_plugins
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import volatility.framework.interfaces.renderers as interfaces_renderers
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import volatility.plugins.mac.pslist as pslist
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from volatility.framework import constants
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from volatility.framework import renderers
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from volatility.framework.configuration import requirements
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from volatility.framework.objects import utility
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from volatility.framework.renderers import format_hints
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class Malfind(interfaces_plugins.PluginInterface):
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"""Lists process memory ranges that potentially contain injected code"""
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@classmethod
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def get_requirements(cls):
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return [
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requirements.TranslationLayerRequirement(
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name = 'primary', description = 'Memory layer for the kernel', architectures = ["Intel32", "Intel64"]),
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requirements.SymbolTableRequirement(name = "darwin", description = "Linux kernel symbols")
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]
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def _list_injections(self, task):
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"""Generate memory regions for a process that may contain
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injected code.
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"""
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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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return
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proc_layer = self.context.layers[proc_layer_name]
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for vma in task.get_map_iter():
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if vma.is_suspicious(self.context, self.config['darwin']):
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data = proc_layer.read(vma.links.start, 64, pad = True)
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yield vma, data
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def _generator(self, tasks):
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# determine if we're on a 32 or 64 bit kernel
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if self.context.symbol_space.get_type(self.config["darwin"] + constants.BANG + "pointer").size == 4:
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is_32bit_arch = True
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else:
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is_32bit_arch = False
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for task in tasks:
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process_name = utility.array_to_string(task.p_comm)
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for vma, data in self._list_injections(task):
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if is_32bit_arch:
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architecture = "intel"
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else:
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architecture = "intel64"
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disasm = interfaces_renderers.Disassembly(data, vma.links.start, architecture)
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yield (0, (task.p_pid, process_name, format_hints.Hex(vma.links.start), format_hints.Hex(vma.links.end),
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vma.get_perms(), format_hints.HexBytes(data), disasm))
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def run(self):
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filter_func = pslist.PsList.create_pid_filter([self.config.get('pid', None)])
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return renderers.TreeGrid([("PID", int), ("Process", str), ("Start", format_hints.Hex),
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("End", format_hints.Hex), ("Protection", str), ("Hexdump", format_hints.HexBytes),
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("Disasm", interfaces_renderers.Disassembly)],
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self._generator(
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pslist.PsList.list_tasks(
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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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