We have recently learned of a new virus/worm which, like the Kazaa worm, spreads via e-mail and file sharing programs. The following article appeared in SANS NewsBites, Vol.5, Number 19:
-- Fizzer Worm (12 May 2003) --
A mass-mailing worm called Fizzer is spreading around the world. Fizzer spreads through both e-mail and file-sharing programs, and affects computers running Windows operating systems. It disables anti-virus software, steals passwords, and places a backdoor in infected computers.
We strongly urge all users to make sure that their anti-virus software is up-to-date, and to make sure that File System Realtime Protection is enabled within it.