Files

108 lines
3.5 KiB
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 os
import volatility.obj as obj
import volatility.debug as debug
import volatility.plugins.mac.pstasks as mac_tasks
class mac_procdump(mac_tasks.mac_tasks):
""" Dumps the executable of a process """
def __init__(self, config, *args, **kwargs):
mac_tasks.mac_tasks.__init__(self, config, *args, **kwargs)
self._config.add_option('DUMP-DIR', short_option = 'D', default = None, help = 'Output directory', action = 'store', type = 'str')
def _text_map(self, proc):
text_map = None
wanted_vnode = proc.p_textvp.v()
for map in proc.get_proc_maps():
vnode = map.get_vnode()
if vnode and vnode != "sub_map" and vnode.v() == wanted_vnode:
text_map = map.start.v()
break
return text_map
def get_executable_contents(self, proc, exe_address, path):
proc_as = proc.get_process_address_space()
m = obj.Object("macho_header", offset = exe_address, vm = proc_as)
buffer = ""
for seg in m.segments():
if str(seg.segname) == "__PAGEZERO":
continue
# this is related to the shared cache map
# contact Andrew for full details
if str(seg.segname) == "__LINKEDIT" and seg.vmsize > 20000000:
continue
cur = seg.vmaddr
end = seg.vmaddr + seg.vmsize
while cur < end:
buffer = buffer + proc_as.zread(cur, 4096)
cur = cur + 4096
return buffer
def render_text(self, outfd, data):
if (not self._config.DUMP_DIR or not os.path.isdir(self._config.DUMP_DIR)):
debug.error("Please specify an existing output dir (--dump-dir)")
self.table_header(outfd, [("Task", "25"),
("Pid", "6"),
("Address", "[addrpad]"),
("Path", "")])
for proc in data:
exe_address = self._text_map(proc)
if exe_address == None:
continue
if not exe_address:
exe_contents = ""
else:
exe_contents = self.get_executable_contents(proc, exe_address, "main")
file_name = "task.{0}.{1:#x}.dmp".format(proc.p_pid, exe_address)
file_path = os.path.join(self._config.DUMP_DIR, file_name)
outfile = open(file_path, "wb+")
outfile.write(exe_contents)
outfile.close()
self.table_row(outfd, proc.p_comm, proc.p_pid, exe_address, file_path)