mirror of
https://github.com/volatilityfoundation/volatility
synced 2026-06-08 18:04:46 +00:00
atcuno
82 lines
2.9 KiB
Python
82 lines
2.9 KiB
Python
# Volatility
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#
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# This program 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 (at
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# your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# 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 this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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"""
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@author: Andrew Case
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@license: GNU General Public License 2.0 or later
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@contact: atcuno@gmail.com
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@organization:
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"""
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import sys
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import volatility.obj as obj
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import common
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from lsmod import mac_lsmod as mac_lsmod
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class mac_trustedbsd(mac_lsmod):
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""" Lists malicious trustedbsd policies """
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def get_members(self):
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h = self.profile.types['mac_policy_ops']
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h = h.keywords["members"]
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return h
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def calculate(self):
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common.set_plugin_members(self)
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# get all the members of 'mac_policy_ops' so that we can check them (they are all function ptrs)
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ops_members = self.get_members()
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# get the symbols need to check for if rootkit or not
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(kernel_symbol_addresses, kmods) = common.get_kernel_addrs(self)
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list_addr = self.get_profile_symbol("_mac_policy_list")
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plist = obj.Object("mac_policy_list", offset=list_addr, vm=self.addr_space)
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parray = obj.Object(theType = 'Array', offset = plist.entries, vm = self.addr_space, targetType = 'mac_policy_list_element', count = plist.maxindex+1)
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for (i, ent) in enumerate(parray):
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# I don't know how this can happen, but the kernel makes this check all over the place
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# the policy is useful without any ops so a rootkit can't abuse this
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if ent.mpc == None:
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continue
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name = common.get_string(ent.mpc.mpc_name, self.addr_space)
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ops = obj.Object("mac_policy_ops", offset=ent.mpc.mpc_ops, vm=self.addr_space)
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# walk each member of the struct
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for check in ops_members:
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ptr = ops.__getattr__(check)
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if ptr != 0:
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# make the last parameter 1 to see the names of known modules that load policies
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good = common.is_known_address(ptr, kernel_symbol_addresses, kmods, 0)
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yield (good, check, name, ptr)
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def render_text(self, outfd, data):
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for (good, check, name, ptr) in data:
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if good == 0:
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print "unknown hook for %s in policy %s at %x" % (check, name, ptr)
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#else:
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# print "known hook for %s in policy %s at %x" % (check, name, ptr)
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