Exploit templates and mixins

Let's consider that you have written an exploit code for a new zero-day vulnerability. Now, to include the exploit code officially into the Metasploit Framework, it has to be in a particular format. Fortunately, you just need to concentrate on the actual exploit code, and then simply use a template (provided by the Metasploit Framework) to insert it in the required format. The Metasploit Framework offers an exploit module skeleton, as shown in the following code:

##
# This module requires Metasploit: http://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

require 'msf/core'

class MetasploitModule < Msf::Exploit::Remote
  Rank = NormalRanking

  def initialize(info={})
    super(update_info(info,
      'Name'           => "[Vendor] [Software] [Root Cause] [Vulnerability...