# Volatility
# Copyright (C) 2008 Volatile Systems
#
# Additional Authors:
# Mike Auty <mike.auty@gmail.com>
#
# This program 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.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 
#
# Based heavily upon the getsids plugin by Moyix
# http://kurtz.cs.wesleyan.edu/%7Ebdolangavitt/memory/getsids.py

"""
@author:       AAron Walters and Brendan Dolan-Gavitt
@license:      GNU General Public License 2.0 or later
@contact:      awalters@volatilesystems.com,bdolangavitt@wesleyan.edu
@organization: Volatile Systems
"""


import volatility.plugins.taskmods as taskmods
import re

def find_sid_re(sid_string, sid_re_list):
    for reg, name in sid_re_list:
        if reg.search(sid_string):
            return name

well_known_sid_re = [
  (re.compile(r'S-1-5-[0-9-]+-500'), 'Administrator'),
  (re.compile(r'S-1-5-[0-9-]+-501'), 'Guest'),
  (re.compile(r'S-1-5-[0-9-]+-502'), 'KRBTGT'),
  (re.compile(r'S-1-5-[0-9-]+-512'), 'Domain Admins'),
  (re.compile(r'S-1-5-[0-9-]+-513'), 'Domain Users'),
  (re.compile(r'S-1-5-[0-9-]+-514'), 'Domain Guests'),
  (re.compile(r'S-1-5-[0-9-]+-515'), 'Domain Computers'),
  (re.compile(r'S-1-5-[0-9-]+-516'), 'Domain Controllers'),
  (re.compile(r'S-1-5-[0-9-]+-517'), 'Cert Publishers'),
  (re.compile(r'S-1-5-[0-9-]+-520'), 'Group Policy Creator Owners'),
  (re.compile(r'S-1-5-[0-9-]+-533'), 'RAS and IAS Servers'),
  (re.compile(r'S-1-5-5-[0-9]+-[0-9]+'), 'Logon Session'),
  (re.compile(r'S-1-5-21-[0-9-]+-518'), 'Schema Admins'),
  (re.compile(r'S-1-5-21-[0-9-]+-519'), 'Enterprise Admins'),
  (re.compile(r'S-1-5-21-[0-9-]+-553'), 'RAS Servers'),
]

well_known_sids = {
  'S-1-0': 'Null Authority',
  'S-1-0-0': 'Nobody',
  'S-1-1': 'World Authority',
  'S-1-1-0': 'Everyone',
  'S-1-2': 'Local Authority',
  'S-1-2-0': 'Local (Users with the ability to log in locally)',
  'S-1-2-1': 'Console Logon (Users who are logged onto the physical console)',
  'S-1-3': 'Creator Authority',
  'S-1-3-0': 'Creator Owner',
  'S-1-3-1': 'Creator Group',
  'S-1-3-2': 'Creator Owner Server',
  'S-1-3-3': 'Creator Group Server',
  'S-1-3-4': 'Owner Rights',
  'S-1-4': 'Non-unique Authority',
  'S-1-5': 'NT Authority',
  'S-1-5-1': 'Dialup',
  'S-1-5-2': 'Network',
  'S-1-5-3': 'Batch',
  'S-1-5-4': 'Interactive',
  'S-1-5-6': 'Service',
  'S-1-5-7': 'Anonymous',
  'S-1-5-8': 'Proxy',
  'S-1-5-9': 'Enterprise Domain Controllers',
  'S-1-5-10': 'Principal Self',
  'S-1-5-11': 'Authenticated Users',
  'S-1-5-12': 'Restricted Code',
  'S-1-5-13': 'Terminal Server Users',
  'S-1-5-14': 'Remote Interactive Logon',
  'S-1-5-15': 'This Organization',
  'S-1-5-17': 'This Organization (Used by the default IIS user)',
  'S-1-5-18': 'Local System',
  'S-1-5-19': 'NT Authority',
  'S-1-5-20': 'NT Authority',
  'S-1-5-32-544': 'Administrators',
  'S-1-5-32-545': 'Users',
  'S-1-5-32-546': 'Guests',
  'S-1-5-32-547': 'Power Users',
  'S-1-5-32-548': 'Account Operators',
  'S-1-5-32-549': 'Server Operators',
  'S-1-5-32-550': 'Print Operators',
  'S-1-5-32-551': 'Backup Operators',
  'S-1-5-32-552': 'Replicators',
  'S-1-5-32-554': 'BUILTIN\Pre-Windows 2000 Compatible Access',
  'S-1-5-32-555': 'BUILTIN\Remote Desktop Users',
  'S-1-5-32-556': 'BUILTIN\Network Configuration Operators',
  'S-1-5-32-557': 'BUILTIN\Incoming Forest Trust Builders',
  'S-1-5-32-558': 'BUILTIN\Performance Monitor Users',
  'S-1-5-32-559': 'BUILTIN\Performance Log Users',
  'S-1-5-32-560': 'BUILTIN\Windows Authorization Access Group',
  'S-1-5-32-561': 'BUILTIN\Terminal Server License Servers',
  'S-1-5-32-562': 'BUILTIN\Distributed COM Users',
  'S-1-5-32-568': 'BUILTIN\IIS IUSRS',
  'S-1-5-32-569': 'Cryptographic Operators',
  'S-1-5-32-573': 'BUILTIN\Event Log Readers',
  'S-1-5-32-574': 'BUILTIN\Certificate Service DCOM Access',
  'S-1-5-33': 'Write Restricted',
  'S-1-5-64-10': 'NTLM Authentication',
  'S-1-5-64-14': 'SChannel Authentication',
  'S-1-5-64-21': 'Digest Authentication',
  'S-1-5-80': 'NT Service',
  'S-1-5-86-1544737700-199408000-2549878335-3519669259-381336952': 'WMI (Local Service)',
  'S-1-5-86-615999462-62705297-2911207457-59056572-3668589837': 'WMI (Network Service)',
  'S-1-5-1000': 'Other Organization',
  'S-1-16-0': 'Untrusted Mandatory Level',
  'S-1-16-4096': 'Low Mandatory Level',
  'S-1-16-8192': 'Medium Mandatory Level',
  'S-1-16-8448': 'Medium Plus Mandatory Level',
  'S-1-16-12288': 'High Mandatory Level',
  'S-1-16-16384': 'System Mandatory Level',
  'S-1-16-20480': 'Protected Process Mandatory Level',
  'S-1-16-28672': 'Secure Process Mandatory Level',
}

class GetSIDs(taskmods.DllList):
    """Print the SIDs owning each process"""

    # Declare meta information associated with this plugin

    meta_info = {}
    meta_info['author'] = 'Brendan Dolan-Gavitt'
    meta_info['copyright'] = 'Copyright (c) 2007,2008 Brendan Dolan-Gavitt'
    meta_info['contact'] = 'bdolangavitt@wesleyan.edu'
    meta_info['license'] = 'GNU General Public License 2.0 or later'
    meta_info['url'] = 'http://moyix.blogspot.com/'
    meta_info['os'] = 'WIN_32_XP_SP2'
    meta_info['version'] = '1.0'

    def render_text(self, outfd, data):
        """Renders the sids as text"""
        for task in data:
            token = task.get_token()

            if not token:
                outfd.write("{0} ({1}): Token unreadable\n".format(task.ImageFileName, int(task.UniqueProcessId)))
                continue

            for sid_string in token.get_sids():
                if sid_string in well_known_sids:
                    sid_name = " ({0})".format(well_known_sids[sid_string])
                else:
                    sid_name_re = find_sid_re(sid_string, well_known_sid_re)
                    if sid_name_re:
                        sid_name = " ({0})".format(sid_name_re)
                    else:
                        sid_name = ""

                outfd.write("{0} ({1}): {2}{3}\n".format(task.ImageFileName, task.UniqueProcessId, sid_string, sid_name))
