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Python

# Volatility
# Copyright (C) 2007-2013 Volatility Foundation
#
# This file is part of Volatility.
#
# Volatility is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# Volatility is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Volatility. If not, see <http://www.gnu.org/licenses/>.
#
"""
@author: Andrew Case
@license: GNU General Public License 2.0
@contact: atcuno@gmail.com
@organization:
"""
import struct
import volatility.obj as obj
import volatility.utils as utils
import volatility.poolscan as poolscan
import volatility.debug as debug
import volatility.plugins.linux.common as linux_common
import volatility.plugins.linux.pslist as pslist
from volatility.renderers import TreeGrid
from volatility.renderers.basic import Address
class linux_psscan(pslist.linux_pslist):
""" Scan physical memory for processes """
def __init__(self, config, *args, **kwargs):
linux_common.AbstractLinuxCommand.__init__(self, config, *args, **kwargs)
self.wants_physical = True
def calculate(self):
linux_common.set_plugin_members(self)
phys_addr_space = utils.load_as(self._config, astype = 'physical')
if phys_addr_space.profile.metadata.get('memory_model', '32bit') == "32bit":
fmt = "<I"
else:
fmt = "<Q"
needles = []
for sym in phys_addr_space.profile.get_all_symbol_names("kernel"):
if sym.find("_sched_class") != -1:
addr = phys_addr_space.profile.get_symbol(sym)
needles.append(struct.pack(fmt, addr))
if len(needles) == 0:
debug.warning("Unable to scan for processes. Please file a bug report.")
else:
back_offset = phys_addr_space.profile.get_obj_offset("task_struct", "sched_class")
scanner = poolscan.MultiPoolScanner(needles)
for _, offset in scanner.scan(phys_addr_space):
ptask = obj.Object("task_struct", offset = offset - back_offset, vm = phys_addr_space)
if not ptask.exit_state.v() in [0, 16, 32, 16|32]:
continue
if not (0 < ptask.pid < 66000):
continue
yield ptask