Apparently this worm is hitting a lot of people right now. If you receive a message with "Here you have, ;o)" as the subject and "Hi: Check This!" in the body of the message, DO NOT OPEN THE ATTACHMENT. Basically it will replicate itself by sending itself via your MS Outlook address book. More informaton at: http://www.symantec.com/avcenter/venc/data/vbs.sst@mm.html including how to remove it.
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Removal Instructions for AnnaKournikova.jpg.vbs :
1.Delete all found infections. If exists, delete the zero-byte file. (search your drive C: for *.vbs)
2.Remove registry keys (Use caution START / RUN / REGEDIT and search for the key and remove it.)
Registry keys:
HKCU/Software/OnTheFly/ HKCU/Software/OnTheFly/mailed