I visit these forums clueless about my car, and always come away with an answer to my questions. Perhaps today I can return the favor, as computers are my area of expertise. Can someone post or PM me a link to a page on here they believe to be infected?

The linked thread mentions that someone's antivirus reported "Exploit.JS.Pdfa.aog", but that works only in Adobe Acrobat Reader, by causing a buffer overflow in its Javascript engine. It cannot infect you from within a web page.

Unless you are using Internet Explorer (which you really shouldn't be) and you download a suspicious ActiveX control (which you should never do), it is really quite difficult to get infected with a virus from simply browsing the web. I've been running without an antivirus for nearly a decade now, and am virus free.