mirror of
https://github.com/volatilityfoundation/volatility
synced 2026-06-08 18:04:46 +00:00
gleeda
400 lines
16 KiB
Python
400 lines
16 KiB
Python
# Volatility
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# Copyright (C) 2007-2013 Volatility Foundation
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# Copyright (c) 2010, 2011, 2012 Michael Ligh <michael.ligh@mnin.org>
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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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import volatility.utils as utils
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import volatility.obj as obj
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import volatility.plugins.common as common
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import volatility.win32.tasks as tasks
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import volatility.plugins.modscan as modscan
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import volatility.plugins.filescan as filescan
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import volatility.plugins.overlays.windows.windows as windows
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import volatility.plugins.gui.sessions as sessions
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import volatility.plugins.gui.windowstations as windowstations
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from volatility.renderers import TreeGrid
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from volatility.renderers.basic import Address
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import volatility.debug as debug
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try:
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from openpyxl.workbook import Workbook
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from openpyxl.writer.excel import ExcelWriter
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from openpyxl.cell import get_column_letter
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from openpyxl.styles import Color, Fill, Style, PatternFill, Border, Side, Alignment, Protection, Font
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from openpyxl.cell import Cell
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from openpyxl import load_workbook
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has_openpyxl = True
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except ImportError:
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has_openpyxl = False
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#--------------------------------------------------------------------------------
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# object classes
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#--------------------------------------------------------------------------------
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class _PSP_CID_TABLE(windows._HANDLE_TABLE): #pylint: disable-msg=W0212
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"""Subclass the Windows handle table object for parsing PspCidTable"""
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def get_item(self, entry, handle_value = 0):
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p = obj.Object("address", entry.Object.v(), self.obj_vm)
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handle = obj.Object("_OBJECT_HEADER",
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offset = (p & ~7) -
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self.obj_vm.profile.get_obj_offset('_OBJECT_HEADER', 'Body'),
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vm = self.obj_vm)
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return handle
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#--------------------------------------------------------------------------------
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# profile modifications
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#--------------------------------------------------------------------------------
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class MalwarePspCid(obj.ProfileModification):
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before = ['WindowsOverlay', 'WindowsVTypes']
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conditions = {'os': lambda x: x == 'windows'}
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def modification(self, profile):
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profile.vtypes.update({"_PSP_CID_TABLE" : profile.vtypes["_HANDLE_TABLE"]})
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profile.merge_overlay({"_KDDEBUGGER_DATA64" : [None,
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{'PspCidTable': [None,
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["pointer", ["pointer", ['_PSP_CID_TABLE']]]],
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}]})
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profile.object_classes.update({
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'_PSP_CID_TABLE': _PSP_CID_TABLE,
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})
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#--------------------------------------------------------------------------------
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# psxview plugin
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#--------------------------------------------------------------------------------
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class PsXview(common.AbstractWindowsCommand, sessions.SessionsMixin):
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"Find hidden processes with various process listings"
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def __init__(self, config, *args):
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common.AbstractWindowsCommand.__init__(self, config, *args)
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config.add_option("PHYSICAL-OFFSET", short_option = 'P', default = False,
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help = "Physcal Offset", action = "store_true")
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config.add_option("APPLY-RULES", short_option = 'R', default = False,
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help = "Apply known good rules", action = "store_true")
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def check_pslist(self, all_tasks):
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"""Enumerate processes from PsActiveProcessHead"""
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return dict((p.obj_vm.vtop(p.obj_offset), p) for p in all_tasks)
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def check_psscan(self):
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"""Enumerate processes with pool tag scanning"""
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return dict((p.obj_offset, p)
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for p in filescan.PSScan(self._config).calculate())
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def check_thrdproc(self, _addr_space):
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"""Enumerate processes indirectly by ETHREAD scanning"""
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ret = dict()
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for ethread in modscan.ThrdScan(self._config).calculate():
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if ethread.ExitTime != 0:
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continue
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# Bounce back to the threads owner
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process = None
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if hasattr(ethread.Tcb, 'Process'):
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process = ethread.Tcb.Process.dereference_as('_EPROCESS')
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elif hasattr(ethread, 'ThreadsProcess'):
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process = ethread.ThreadsProcess.dereference()
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# Make sure the bounce succeeded
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if (process and process.ExitTime == 0 and
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process.UniqueProcessId > 0 and
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process.UniqueProcessId < 65535):
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ret[process.obj_vm.vtop(process.obj_offset)] = process
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return ret
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def check_sessions(self, addr_space):
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"""Enumerate processes from session structures"""
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ret = dict()
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for session in self.session_spaces(addr_space):
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for process in session.processes():
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ret[process.obj_vm.vtop(process.obj_offset)] = process
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return ret
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def check_desktop_thread(self, addr_space):
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"""Enumerate processes from desktop threads"""
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ret = dict()
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for windowstation in windowstations.WndScan(self._config).calculate():
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for desktop in windowstation.desktops():
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for thread in desktop.threads():
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process = thread.ppi.Process.dereference()
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if process == None:
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continue
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ret[process.obj_vm.vtop(process.obj_offset)] = process
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return ret
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def check_pspcid(self, addr_space):
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"""Enumerate processes by walking the PspCidTable"""
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ret = dict()
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# Follow the pointers to the table base
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kdbg = tasks.get_kdbg(addr_space)
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PspCidTable = kdbg.PspCidTable.dereference().dereference()
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# Walk the handle table
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for handle in PspCidTable.handles():
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if handle.get_object_type() == "Process":
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process = handle.dereference_as("_EPROCESS")
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ret[process.obj_vm.vtop(process.obj_offset)] = process
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return ret
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def check_csrss_handles(self, all_tasks):
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"""Enumerate processes using the csrss.exe handle table"""
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ret = dict()
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for p in all_tasks:
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if str(p.ImageFileName).lower() == "csrss.exe":
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# Gather the handles to process objects
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for handle in p.ObjectTable.handles():
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if handle.get_object_type() == "Process":
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process = handle.dereference_as("_EPROCESS")
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ret[process.obj_vm.vtop(process.obj_offset)] = process
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return ret
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def calculate(self):
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if self._config.OUTPUT == "xlsx" and not has_openpyxl:
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debug.error("You must install OpenPyxl 2.1.2 for xlsx format:\n\thttps://pypi.python.org/pypi/openpyxl")
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elif self._config.OUTPUT == "xlsx" and not self._config.OUTPUT_FILE:
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debug.error("You must specify an output *.xlsx file!\n\t(Example: --output-file=OUTPUT.xlsx)")
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addr_space = utils.load_as(self._config)
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all_tasks = list(tasks.pslist(addr_space))
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ps_sources = {}
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# The keys are names of process sources. The values
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# are dictionaries whose keys are physical process
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# offsets and the values are _EPROCESS objects.
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ps_sources['pslist'] = self.check_pslist(all_tasks)
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ps_sources['psscan'] = self.check_psscan()
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ps_sources['thrdproc'] = self.check_thrdproc(addr_space)
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ps_sources['csrss'] = self.check_csrss_handles(all_tasks)
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ps_sources['pspcid'] = self.check_pspcid(addr_space)
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ps_sources['session'] = self.check_sessions(addr_space)
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ps_sources['deskthrd'] = self.check_desktop_thread(addr_space)
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# Build a list of offsets from all sources
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seen_offsets = []
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for source in ps_sources.values():
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for offset in source.keys():
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if offset not in seen_offsets:
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seen_offsets.append(offset)
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yield offset, source[offset], ps_sources
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def render_xlsx(self, outfd, data):
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BoldStyle = Style(font=Font(name='Calibri',
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size=11,
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bold=True,
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italic=False,
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vertAlign=None,
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underline='none',
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strike=False,
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color='FFFFFFFF'),
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fill=PatternFill(fill_type="solid",
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start_color='FF000000',
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end_color='FF000000'))
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RedStyle = Style(font=Font(name='Calibri',
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size=11,
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bold=False,
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italic=False,
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vertAlign=None,
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underline='none',
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strike=False,
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color='FF000000'),
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border=Border(left=Side(border_style="thick",
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color='FF000000'),
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right=Side(border_style="thick",
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color='FF000000'),
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top=Side(border_style="thick",
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color='FF000000'),
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bottom=Side(border_style="thick",
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color='FF000000'),
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diagonal=Side(border_style="thick",
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color='FF000000'),
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diagonal_direction=0,
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outline=Side(border_style="thick",
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color='FF000000'),
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vertical=Side(border_style="thick",
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color='FF000000'),
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horizontal=Side(border_style="thick",
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color='FF000000')),
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fill=PatternFill(start_color = 'FFFF0000',
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end_color = 'FFFF0000',
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fill_type = 'solid'))
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GreenStyle = Style(font=Font(name='Calibri',
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size=11,
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bold=False,
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italic=False,
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vertAlign=None,
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underline='none',
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strike=False,
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color='FF000000'),
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fill=PatternFill(start_color = "FF00FF00",
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end_color = "FF00FF00",
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fill_type = "solid"))
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wb = Workbook(optimized_write = True)
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ws = wb.create_sheet()
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ws.title = "Psxview Output"
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ws.append(["Offset (P)",
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"Name",
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"PID",
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"pslist",
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"psscan",
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"thrdproc",
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"pspcid",
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"csrss",
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"session",
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"deskthrd",
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"Exit Time"])
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total = 1
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for offset, process, ps_sources in data:
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incsrss = ps_sources['csrss'].has_key(offset)
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insession = ps_sources['session'].has_key(offset)
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indesktop = ps_sources['deskthrd'].has_key(offset)
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inpspcid = ps_sources['pspcid'].has_key(offset)
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inpslist = ps_sources['pslist'].has_key(offset)
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inthread = ps_sources['thrdproc'].has_key(offset)
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if self._config.APPLY_RULES:
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if not incsrss:
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if str(process.ImageFileName).lower() in ["system", "smss.exe", "csrss.exe"]:
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incsrss = "Okay"
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elif process.ExitTime > 0:
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incsrss = "Okay"
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if not insession:
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if str(process.ImageFileName).lower() in ["system", "smss.exe"]:
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insession = "Okay"
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elif process.ExitTime > 0:
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insession = "Okay"
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if not indesktop:
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if str(process.ImageFileName).lower() in ["system", "smss.exe"]:
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indesktop = "Okay"
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elif process.ExitTime > 0:
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indesktop = "Okay"
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if not inpspcid:
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if process.ExitTime > 0:
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inpspcid = "Okay"
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if not inpslist:
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if process.ExitTime > 0:
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inpslist = "Okay"
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if not inthread:
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if process.ExitTime > 0:
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inthread = "Okay"
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ws.append([hex(offset),
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str(utils.remove_unprintable(str(process.ImageFileName)) or ""),
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str(process.UniqueProcessId),
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str(inpslist),
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str(ps_sources['psscan'].has_key(offset)),
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str(inthread),
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str(inpspcid),
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str(incsrss),
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str(insession),
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str(indesktop),
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str(process.ExitTime or '')])
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total += 1
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wb.save(filename = self._config.OUTPUT_FILE)
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wb = load_workbook(filename = self._config.OUTPUT_FILE)
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ws = wb.get_sheet_by_name(name = "Psxview Output")
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for col in xrange(1, 12):
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ws.cell("{0}{1}".format(get_column_letter(col), 1)).style = BoldStyle
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for row in xrange(2, total + 1):
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for col in xrange(4, 11):
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if ws.cell("{0}{1}".format(get_column_letter(col), row)).value == "False":
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ws.cell("{0}{1}".format(get_column_letter(col), row)).style = RedStyle
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else:
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ws.cell("{0}{1}".format(get_column_letter(col), row)).style = GreenStyle
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wb.save(filename = self._config.OUTPUT_FILE)
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def unified_output(self, data):
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return TreeGrid([("Offset(P)", Address),
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("Name", str),
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("PID", int),
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("pslist", str),
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("psscan", str),
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("thrdproc", str),
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("pspcid", str),
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("csrss", str),
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("session", str),
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("deskthrd", str),
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("ExitTime", str)],
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self.generator(data))
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def generator(self, data):
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for offset, process, ps_sources in data:
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incsrss = ps_sources['csrss'].has_key(offset)
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insession = ps_sources['session'].has_key(offset)
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indesktop = ps_sources['deskthrd'].has_key(offset)
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inpspcid = ps_sources['pspcid'].has_key(offset)
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inpslist = ps_sources['pslist'].has_key(offset)
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inthread = ps_sources['thrdproc'].has_key(offset)
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if self._config.APPLY_RULES:
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if not incsrss:
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if str(process.ImageFileName).lower() in ["system", "smss.exe", "csrss.exe"]:
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incsrss = "Okay"
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elif process.ExitTime > 0:
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incsrss = "Okay"
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if not insession:
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if str(process.ImageFileName).lower() in ["system", "smss.exe"]:
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insession = "Okay"
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elif process.ExitTime > 0:
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insession = "Okay"
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if not indesktop:
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if str(process.ImageFileName).lower() in ["system", "smss.exe"]:
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indesktop = "Okay"
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elif process.ExitTime > 0:
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indesktop = "Okay"
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if not inpspcid:
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if process.ExitTime > 0:
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inpspcid = "Okay"
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if not inpslist:
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if process.ExitTime > 0:
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inpslist = "Okay"
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if not inthread:
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if process.ExitTime > 0:
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inthread = "Okay"
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yield (0, [
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Address(offset),
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str(process.ImageFileName),
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int(process.UniqueProcessId),
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str(inpslist),
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str(ps_sources['psscan'].has_key(offset)),
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str(inthread),
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str(inpspcid),
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str(incsrss),
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str(insession),
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str(indesktop),
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str(process.ExitTime or ''),
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])
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