The "virus warning" was merely a nuisance hoax posting. That is, don't
worry, there is no such danger. If you have an interest you may read about
this and other such hoaxes at the U.S. Department of Energy, Computer
Incident Advisory Capability site
http://urbanlegends.miningco.com/library/weekly/aa030798.htm . A well done
spoof of such postings is there as well.
Cybercollegially,
Charlie Wankel, mg-ed-dv listmaster