Go here for a realtime scan:
http://security2.norton.com/us/home.asp?j=1&productid=sarc&plfid=20&langid=us&ven id=sym&pkj=HHQAHEEUODUVJSSSJTD
it will tell you what exactly you have. There are free repair files there for alot of viruses
As you can see if you run weird in the search box on this page:
http://www.symantec.com/avcenter/vinfodb.html
There are quite a few viruses with 'weird' in them.
Then go BUY Norton Systemworks!!!!!