i just found this link for you, i suggest you go read it
this has been aswered many times now, there is no virus, its something on your pc that attaches itself to internet explorer. update your virus checker, preferably dont use the free ones. i just downloaded a 100,000 stitch free design from the Embroidery Passbook and i had no problems
this one has been mentioned before, there seem to be many viruses arond these days. Cuties beware