Document on how to research and develop plugins for WhatWeb to identify content management systems, web application frameworks, etc. As an example it includes how to research and write a plugin for the SilverStripe CMS. The document covers passive plugin development only and is accurate for WhatWeb version 0.4.
You can download it from the following link: https://packetstormsecurity.com/files/download/87758/How-to-develop-WhatWeb-plugins-1.1.txt
Source: https://packetstormsecurity.com/files/87758/How-To-Develop-WhatWeb-Plugins.html