New virus?

I wonder if a new variant of the blaster worm is out that builds on the older outlook email viruses. I probably get a pointless email once every couple days with a virus attached, but today I’ve gotten about three dozen, and worse yet, I’ve gotten 3 bounces from people that got virus-laden messages with my return address.

update: ah, I’m getting pummeled with the sobig virus, three four five more in the minutes since I wrote this entry. [thanks andy]

Anyone know how to write a server-side procmail script to delete any incoming messages with attachments that end in .pif? I’d rather never see another again and it doesn’t seem that hard to banish them forever (my Mozilla email client can’t seem to create filters based on attachments).