Thanks, Terry, but this is part of what is so confusing about computers to me. I've never encountered any e-mail addresses with those kinds of extensions. The only e-mail addresses I've seen have extensions of .com, .net, or .country abbreviation. Or does this worm hit e-mail addresses of people who visit or open URLs with those extensions? Frankly, I've been baffled because my carrier (DirecWay) sent me an alarm, telling me to go to Microsoft, etc., and I went there and there's nothing about worms or viruses or threatening clouds. I tried to go to home users part, but that was taking longer than I wanted to sit. I went back to Microsoft later, and all I could see was that they were offering upgrades of Messenger, something like Direct 9 or something like that, music and video upgrades. I'm not interested in any of that, so I got out. I scanned my system, and Norton says it's clean. I went back to Norton and asked if there were any downloads I should have, and they said 4, showed 3, and I downloaded those. Everything is off, just a little. Grrr. I think fall's coming early this year. What do you think? Margaret L >Nope, it's a totally different one. Here is a little of what Symantec says >about it: >W32.Sobig.F@mm is a mass-mailing, network-aware worm that sends itself to >all the email addresses it finds in the files that have the following >extensions: >.dbx >.eml >.hlp >.htm >.html >.mht >.wab >.txt.... > >To read more about it you can go to: >http://securityresponse.symantec.com/avcenter/venc/data/w32.sobig.f@mm.html > >It was upgrade to a class 3 threat and it can also steal secure information >including passwords. > >Terry