An email worm known as MyDoom, which masquerades as an advisory message from a computer technician, is the worst internet virus since SoBig last year. It was first spotted on Monday in a file sent from Russia. Over the next few hours over 1.5m copies had been intercepted. Like other email worms, MyDoom requires a user to open the attachment before it can infect a machine. Many of these emails is labelled "Test" or "Status". Sean Richmond, technical support manager for Sophos, said yesterday that the MyDoom worm turned an infected computer into "a zombie", which could be programmed without the owner's knowledge to attack the website of SCO, which is in dispute with the Linux community.
If you are a victim of the virus you can get help from:
http://www.sophos.com/virusinfo/articles/mydoom.html