The bad guys often install a toolkit to control remote servers effectively. The origin of this toolkit seems to point to Arabic countries. It is just one of many similar hack shells that criminals use. The toolkit provides you with templates to hack various software programs. A future blog post about other hack shells might be necessary for a future post on the toolkit may also be necessary. For example, EgY SpIdEr ShElL is a tool that allows you to hack a remote server.
Source: https://thehackernews.com/2011/05/egy-spider-shell-shell-strongest-in.html