Mydoom.B

For those of you that either were infected with the Mydoom worm or use a service like Postini (by the way, you should keep your eye on this company) and have been receiving an overwhelming number of blocked virus e-mails, you will be happy to know that Wired is reporting a new strain of the virus. Apparently Mydoom.B has been released and is also programmed to launch a denial of service attack against Microsoft and the SCO Group's site. Additionally, according to Wired, the virus will block access to 65 websites -- most of those websites belonging to antivirus software manufacturers.

As usual, this virus only affects systems running Microsoft operating systems.