This probably isn't completely relevant here, but it's still interesting:
From Symantec's Security Response
Perl.Santy is a worm written in Perl script that attempts to spread to Web servers running versions of the phpBB 2.x bulletin board software prior to 2.0.11, which are vulnerable to the PHPBB Remote URLDecode Input Validation Vulnerability. Other systems are not affected. If successful, the worm copies itself to the server and overwrites the files with the following extensions...
The version of phpBB used on this CCS64 message board is 2.0.11, which is safe. I feel better now that I've checked.