It primarily targets the application layer (Layer 7) rather than just the network layer.
In the case of "Xerxes.7z," it likely contains the source code (typically a C file like xerxes.c ) or a compiled executable of the tool, packed away for easy sharing or storage. Security Risks and Warnings Xerxes.7z
Because it is so efficient, it can often take down a web server from a single system without needing a botnet. Why the ".7z" Extension? It primarily targets the application layer (Layer 7)