IRC Defender is a Perl program for protecting your
IRC network against virus drones, general
troublemakers, ban evasion, and attacks. It is
fully modular, able to unload and load modules on
the fly, and comes with several modules to ban
anatoly/fyle virus drones, block unauthorised
cgi:irc sites, conduct ctcp version surveys,
maintain ctcp version blacklists, and (most
importantly) set regexp-based akills.