The Mydoom worm (a.k.a. Shimgapi and Novarg) is making a fast name for itself and has been detected in 142 countries and currently accounts for 8.5% of all Internet e-mail, according to a leading security company.

The worm arrives in an e-mail file attachment. The e-mail body varies from blank to highly technical jargon…all of which are designed to fool the recipient into opening the attached (infected) file which has a common extension such as ZIP, SCR, EXE, or PIF.

Dave's Opinion

I started noticing the worm making its way through our e-mail servers yesterday. I'm receiving a couple of dozen copies of infected messages every hour in my e-mail account, alone. Some of the infected messages are being transmitted using one of my e-mail accounts as the faked sender, so it's difficult to determine from true sender.

Keep you antivirus software updated and never, I mean never, open a file attachment that you're not expecting.