mirror of
https://github.com/volatilityfoundation/volatility
synced 2026-06-08 18:04:46 +00:00
Andrew C
112 lines
3.7 KiB
Python
112 lines
3.7 KiB
Python
# Volatility
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# Copyright (C) 2007-2013 Volatility Foundation
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#
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# This file is part of Volatility.
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#
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# Volatility is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# Volatility is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Volatility. If not, see <http://www.gnu.org/licenses/>.
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#
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"""
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@author: Andrew Case
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@license: GNU General Public License 2.0
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@contact: atcuno@gmail.com
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@organization:
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"""
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import volatility.obj as obj
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import volatility.plugins.mac.common as common
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class mac_check_trap_table(common.AbstractMacCommand):
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""" Checks to see if mach trap table entries are hooked """
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def _set_vtypes(self):
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x86_10_vtypes = {
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'mach_trap' : [ 16, {
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'mach_trap_function': [ 4, ['pointer', ['void']]]
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}]}
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x86_other_vtypes = {
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'mach_trap' : [ 8, {
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'mach_trap_function': [ 4, ['pointer', ['void']]]
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}]}
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x64_10_vtypes = {
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'mach_trap' : [ 40, {
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'mach_trap_function': [ 8, ['pointer', ['void']]]
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}]}
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x64_13_vtypes = {
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'mach_trap' : [ 32, {
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'mach_trap_function': [ 8, ['pointer', ['void']]]
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}]}
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x64_other_vtypes = {
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'mach_trap' : [ 16, {
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'mach_trap_function': [ 8, ['pointer', ['void']]]
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}]}
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arch = self.addr_space.profile.metadata.get('memory_model', '32bit')
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major = self.addr_space.profile.metadata.get('major', 0)
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if arch == "32bit":
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if major == 10:
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vtypes = x86_10_vtypes
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else:
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vtypes = x86_other_vtypes
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else:
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if major == 10:
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vtypes = x64_10_vtypes
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elif major == 13:
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vtypes = x64_13_vtypes
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else:
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vtypes = x64_other_vtypes
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self.addr_space.profile.vtypes.update(vtypes)
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self.addr_space.profile.compile()
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def calculate(self):
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common.set_plugin_members(self)
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self._set_vtypes()
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sym_addrs = self.profile.get_all_addresses()
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table_addr = self.addr_space.profile.get_symbol("_mach_trap_table")
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ntraps = obj.Object("int", offset = self.addr_space.profile.get_symbol("_mach_trap_count"), vm = self.addr_space)
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traps = obj.Object(theType = "Array", offset = table_addr, vm = self.addr_space, count = ntraps, targetType = "mach_trap")
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for (i, trap) in enumerate(traps):
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ent_addr = trap.mach_trap_function.v()
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if not ent_addr:
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continue
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hooked = ent_addr not in sym_addrs
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if hooked == False:
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sym_name = self.profile.get_symbol_by_address("kernel", ent_addr)
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else:
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sym_name = "HOOKED"
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yield (table_addr, "TrapTable", i, ent_addr, sym_name, hooked)
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def render_text(self, outfd, data):
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self.table_header(outfd, [("Table Name", "15"),
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("Index", "6"),
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("Address", "[addrpad]"),
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("Symbol", "<50")])
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for (_, table_name, i, call_addr, sym_name, _) in data:
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self.table_row(outfd, table_name, i, call_addr, sym_name)
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