<< It doesn't "stand" for anything:
warez
/weirz/ A term used by software pirates use to describe a cracked game or application that is made available to the Internet, usually via FTP or telnet, often the pirate will make use of a site with lax security.
Source: The Free On-line Dictionary of Computing, © 1993-2001 Denis Howe
(Edit: forgot to cite my source... wouldn't want to get reported to the dean 😉 ).
dc >>
my bad, I was thinking in terms of it being an acronym for something