Aardvark

Aardvark is Anti-IC program designed to locate and destroy intruding Worm programs. It will immediately seek out and destroy any Worm program carried, even if it is loaded as Demon subroutine. Does detects and attacks Worms de-rezzing instantly. However it work Worm program only as no effect on any other programs.

Source

 * Cyberpunk 2020, pg.142, 139