mirror of
https://github.com/volatilityfoundation/volatility
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gleeda
437 lines
17 KiB
Python
437 lines
17 KiB
Python
# fileobjscan.py
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# Copyright 2009 Andreas Schuster <a.schuster@yendor.net>
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# Copyright (C) 2009-2013 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: Andreas Schuster
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@license: GNU General Public License 2.0
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@contact: a.schuster@forensikblog.de
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@organization: http://computer.forensikblog.de/en/
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"""
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import volatility.plugins.common as common
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import volatility.obj as obj
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import volatility.poolscan as poolscan
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import volatility.utils as utils
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from volatility.renderers import TreeGrid
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from volatility.renderers.basic import Address
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class PoolScanFile(poolscan.PoolScanner):
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"""Pool scanner for file objects"""
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def __init__(self, address_space):
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poolscan.PoolScanner.__init__(self, address_space)
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self.struct_name = "_FILE_OBJECT"
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self.object_type = "File"
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self.pooltag = obj.VolMagic(address_space).FilePoolTag.v()
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size = 0x98 # self.address_space.profile.get_obj_size("_FILE_OBJECT")
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self.checks = [
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('CheckPoolSize', dict(condition = lambda x: x >= size)),
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('CheckPoolType', dict(paged = False, non_paged = True, free = True)),
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('CheckPoolIndex', dict(value = lambda x : x < 5)),
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]
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class FileScan(common.AbstractScanCommand):
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"""Pool scanner for file objects"""
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scanners = [PoolScanFile]
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# Declare meta information associated with this plugin
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meta_info = {}
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meta_info['author'] = 'Andreas Schuster'
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meta_info['copyright'] = 'Copyright (c) 2009 Andreas Schuster'
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meta_info['contact'] = 'a.schuster@forensikblog.de'
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meta_info['license'] = 'GNU General Public License 2.0'
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meta_info['url'] = 'http://computer.forensikblog.de/en/'
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meta_info['os'] = 'WIN_32_XP_SP2'
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meta_info['version'] = '0.1'
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def render_text(self, outfd, data):
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self.table_header(outfd, [(self.offset_column(), '#018x'),
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('#Ptr', '>6'),
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('#Hnd', '>6'),
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('Access', '>6'),
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('Name', '')
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])
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for file in data:
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header = file.get_object_header()
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self.table_row(outfd,
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file.obj_offset,
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header.PointerCount,
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header.HandleCount,
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file.access_string(),
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str(file.file_name_with_device() or ''))
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def unified_output(self, data):
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return TreeGrid([(self.offset_column(), Address),
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("Pointers", int),
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("Handles", int),
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("Access", str),
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("Name", str)],
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self.generator(data))
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def generator(self, data):
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for file in data:
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header = file.get_object_header()
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yield (0, [Address(file.obj_offset),
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int(header.PointerCount),
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int(header.HandleCount),
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str(file.access_string()),
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str(file.file_name_with_device() or '')])
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class PoolScanDriver(poolscan.PoolScanner):
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"""Pool scanner for driver objects"""
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def __init__(self, address_space):
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poolscan.PoolScanner.__init__(self, address_space)
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self.struct_name = "_DRIVER_OBJECT"
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self.object_type = "Driver"
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# due to the placement of the driver extension, we
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# use the top down approach instead of bottom-up.
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self.use_top_down = True
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self.pooltag = obj.VolMagic(address_space).DriverPoolTag.v()
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size = 0xf8 # self.address_space.profile.get_obj_size("_DRIVER_OBJECT")
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self.checks = [
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('CheckPoolSize', dict(condition = lambda x: x >= size)),
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('CheckPoolType', dict(paged = False, non_paged = True, free = True)),
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('CheckPoolIndex', dict(value = lambda x : x < 5)),
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]
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class DriverScan(common.AbstractScanCommand):
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"""Pool scanner for driver objects"""
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scanners = [PoolScanDriver]
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def unified_output(self, data):
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return TreeGrid([(self.offset_column(), Address),
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("Pointers", int),
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("Handles", int),
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("Start", Address),
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("Size", int),
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("Service Key", str),
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("Name", str),
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("Driver Name", str)],
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self.generator(data))
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def generator(self, data):
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for driver in data:
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header = driver.get_object_header()
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yield (0, [Address(driver.obj_offset),
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int(header.PointerCount),
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int(header.HandleCount),
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Address(driver.DriverStart),
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int(driver.DriverSize),
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str(driver.DriverExtension.ServiceKeyName or ''),
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str(header.NameInfo.Name or ''),
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str(driver.DriverName or '')])
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def render_text(self, outfd, data):
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self.table_header(outfd, [(self.offset_column(), '#018x'),
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('#Ptr', '>8'),
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('#Hnd', '>8'),
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('Start', '[addrpad]'),
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('Size', '[addr]'),
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('Service Key', '20'),
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('Name', '12'),
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('Driver Name', '')
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])
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for driver in data:
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header = driver.get_object_header()
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self.table_row(outfd,
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driver.obj_offset,
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header.PointerCount,
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header.HandleCount,
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driver.DriverStart,
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driver.DriverSize,
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str(driver.DriverExtension.ServiceKeyName or ''),
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str(header.NameInfo.Name or ''),
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str(driver.DriverName or ''))
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class PoolScanSymlink(poolscan.PoolScanner):
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"""Pool scanner for symlink objects"""
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def __init__(self, address_space):
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poolscan.PoolScanner.__init__(self, address_space)
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self.struct_name = "_OBJECT_SYMBOLIC_LINK"
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self.object_type = "SymbolicLink"
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self.pooltag = obj.VolMagic(address_space).SymlinkPoolTag.v()
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size = 0x48 # self.address_space.profile.get_obj_size("_OBJECT_SYMBOLIC_LINK")
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self.checks = [
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('CheckPoolSize', dict(condition = lambda x: x >= size)),
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('CheckPoolType', dict(paged = True, non_paged = True, free = True)),
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]
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class SymLinkScan(common.AbstractScanCommand):
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"""Pool scanner for symlink objects"""
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scanners = [PoolScanSymlink]
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def unified_output(self, data):
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return TreeGrid([(self.offset_column(), Address),
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("Pointers", int),
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("Handles", int),
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("Creation Time", str),
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("Origin", str),
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("Target", str)],
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self.generator(data))
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def generator(self, data):
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for link in data:
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header = link.get_object_header()
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yield (0, [Address(link.obj_offset),
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int(header.PointerCount),
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int(header.HandleCount),
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str(link.CreationTime or ''),
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str(header.NameInfo.Name or ''),
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str(link.LinkTarget or '')])
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def render_text(self, outfd, data):
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self.table_header(outfd, [(self.offset_column(), '#018x'),
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('#Ptr', '>6'),
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('#Hnd', '>6'),
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('Creation time', '30'),
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('From', '<20'),
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('To', '60'),
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])
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for link in data:
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header = link.get_object_header()
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self.table_row(outfd,
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link.obj_offset,
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header.PointerCount,
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header.HandleCount,
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link.CreationTime or '',
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str(header.NameInfo.Name or ''),
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str(link.LinkTarget or ''))
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class PoolScanMutant(poolscan.PoolScanner):
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"""Pool scanner for mutex objects"""
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def __init__(self, address_space, **kwargs):
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poolscan.PoolScanner.__init__(self, address_space, **kwargs)
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self.struct_name = "_KMUTANT"
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self.object_type = "Mutant"
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self.pooltag = obj.VolMagic(address_space).MutexPoolTag.v()
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size = 0x40 # self.address_space.profile.get_obj_size("_KMUTANT")
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self.checks = [
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('CheckPoolSize', dict(condition = lambda x: x >= size)),
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('CheckPoolType', dict(paged = False, non_paged = True, free = True)),
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('CheckPoolIndex', dict(value = lambda x : x < 5)),
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]
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class MutantScan(common.AbstractScanCommand):
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"""Pool scanner for mutex objects"""
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scanners = [PoolScanMutant]
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def __init__(self, config, *args, **kwargs):
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common.AbstractScanCommand.__init__(self, config, *args, **kwargs)
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config.add_option("SILENT", short_option = 's', default = False,
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action = 'store_true',
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help = 'Suppress less meaningful results')
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def unified_output(self, data):
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return TreeGrid([(self.offset_column(), Address),
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("Pointers", int),
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("Handles", int),
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("Signal", str),
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("Thread", Address),
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("CID", str),
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("Name", str)],
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self.generator(data))
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def generator(self, data):
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for mutant in data:
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header = mutant.get_object_header()
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name = str(header.NameInfo.Name or '')
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CID = ""
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if mutant.OwnerThread.is_valid():
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thread = mutant.OwnerThread.dereference_as('_ETHREAD')
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CID = "{0}:{1}".format(thread.Cid.UniqueProcess, thread.Cid.UniqueThread)
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if self._config.SILENT and not CID and not name:
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continue
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yield (0, [Address(mutant.obj_offset),
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int(header.PointerCount),
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int(header.HandleCount),
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str(mutant.Header.SignalState),
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Address(mutant.OwnerThread),
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str(CID),
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name])
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def render_text(self, outfd, data):
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self.table_header(outfd, [(self.offset_column(), '#018x'),
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('#Ptr', '>8'),
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('#Hnd', '>8'),
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('Signal', '4'),
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('Thread', '[addrpad]'),
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('CID', '>9'),
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('Name', '')
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])
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for mutant in data:
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header = mutant.get_object_header()
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name = str(header.NameInfo.Name or '')
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CID = ""
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if mutant.OwnerThread.is_valid():
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thread = mutant.OwnerThread.dereference_as('_ETHREAD')
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CID = "{0}:{1}".format(thread.Cid.UniqueProcess, thread.Cid.UniqueThread)
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if self._config.SILENT and not CID and not name:
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continue
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self.table_row(outfd,
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mutant.obj_offset,
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header.PointerCount,
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header.HandleCount,
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mutant.Header.SignalState,
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mutant.OwnerThread, CID,
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name)
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class PoolScanProcess(poolscan.PoolScanner):
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"""Pool scanner for process objects"""
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def __init__(self, address_space, **kwargs):
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poolscan.PoolScanner.__init__(self, address_space, **kwargs)
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self.struct_name = "_EPROCESS"
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self.object_type = "Process"
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# this allows us to find terminated processes
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self.skip_type_check = True
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self.pooltag = obj.VolMagic(address_space).ProcessPoolTag.v()
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size = 0x1ae # self.address_space.profile.get_obj_size("_EPROCESS")
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self.checks = [
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('CheckPoolSize', dict(condition = lambda x: x >= size)),
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('CheckPoolType', dict(paged = False, non_paged = True, free = True)),
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('CheckPoolIndex', dict(value = lambda x : x < 5)),
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]
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class PSScan(common.AbstractScanCommand):
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"""Pool scanner for process objects"""
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scanners = [PoolScanProcess]
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# Declare meta information associated with this plugin
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meta_info = {}
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meta_info['author'] = 'AAron Walters'
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meta_info['copyright'] = 'Copyright (c) 2011 Volatility Foundation'
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meta_info['contact'] = 'awalters@4tphi.net'
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meta_info['license'] = 'GNU General Public License 2.0'
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meta_info['url'] = 'https://www.volatilityfoundation.org/'
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meta_info['os'] = ['Win7SP0x86', 'WinXPSP3x86']
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meta_info['version'] = '0.1'
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def calculate(self):
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# start with a physical space so we can find processes without a DTB
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addr_space = utils.load_as(self._config, astype = 'physical')
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meta = addr_space.profile.metadata
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win10 = (meta.get("major"), meta.get("minor")) == (6, 4)
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# if the user selected virtual space or if we're on win10, switch
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# to a virtual kernel space
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if self._config.VIRTUAL or win10:
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addr_space = utils.load_as(self._config)
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return self.scan_results(addr_space)
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def render_dot(self, outfd, data):
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objects = set()
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links = set()
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for eprocess in data:
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label = "{0} | {1} |".format(eprocess.UniqueProcessId,
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eprocess.ImageFileName)
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if eprocess.ExitTime:
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label += "exited\\n{0}".format(eprocess.ExitTime)
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options = ' style = "filled" fillcolor = "lightgray" '
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else:
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label += "running"
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options = ''
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objects.add('pid{0} [label="{1}" shape="record" {2}];\n'.format(eprocess.UniqueProcessId,
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label, options))
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links.add("pid{0} -> pid{1} [];\n".format(eprocess.InheritedFromUniqueProcessId,
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eprocess.UniqueProcessId))
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## Now write the dot file
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outfd.write("digraph processtree { \ngraph [rankdir = \"TB\"];\n")
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for link in links:
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outfd.write(link)
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for item in objects:
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outfd.write(item)
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outfd.write("}")
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def unified_output(self, data):
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return TreeGrid([(self.offset_column(), Address),
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("Name", str),
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("PID", int),
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("PPID", int),
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("PDB", Address),
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("Time Created", str),
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("Time Exited", str)],
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self.generator(data))
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def generator(self, data):
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for eprocess in data:
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yield (0, [Address(eprocess.obj_offset),
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str(eprocess.ImageFileName),
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int(eprocess.UniqueProcessId),
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int(eprocess.InheritedFromUniqueProcessId),
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Address(eprocess.Pcb.DirectoryTableBase),
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str(eprocess.CreateTime or ''),
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str(eprocess.ExitTime or '')])
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def render_text(self, outfd, data):
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self.table_header(outfd, [(self.offset_column(), '#018x'),
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('Name', '16'),
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('PID', '>6'),
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('PPID', '>6'),
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('PDB', '[addrpad]'),
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('Time created', '30'),
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('Time exited', '30')
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])
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for eprocess in data:
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self.table_row(outfd,
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eprocess.obj_offset,
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eprocess.ImageFileName,
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eprocess.UniqueProcessId,
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eprocess.InheritedFromUniqueProcessId,
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eprocess.Pcb.DirectoryTableBase,
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eprocess.CreateTime or '',
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eprocess.ExitTime or '')
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