The Virus is called W32.klez....it will open your email address book and send to everyone on it. When those people open their email, the virus will do the same thing...is called a worm. I got email yesterday from OSO, but he did not send it. I suspect that someone in our distribution list does have the worm. The best thing to do is install Norton Antivirus..it will flag and delete those messages, but will also alert ya. If you go to the site below, you can scan your c drive.
W32.Klez.E is a dangerous virus that spread through email. Sophos give you the W32.Klez.E removal tools