HiddenWall is a Linux kernel module generator for custom rules with netfilter. (block ports, Hidden mode, rootkit functions etc). The motivation: on bad situation, attacker can put your iptables/ufw to fall… but if you have HiddenWall, the attacker will not find the hidden kernel module that block external access, because have a hook to netfilter on kernel land(think like a second layer for firewall).
My beginning purpose at this project is protect my personal server, now is protect the machines of my friends. When i talk “friends”, i say peoples that don’t know how to write low level code. Using the HiddenWall you can generate your custom kernel module for your firewall configuration.
The low level programmer can write new templates for modules etc…