Fortunately, I was able to successfully clean my laptop of the trojan virus. Upon further inspection, one of the infected files was dated Saturday morning, when I downloaded WOW model viewer from the model viewer site. Now I'm not saying that's how I got it, since it seems the virus is also transmittable from web browsing. So who knows. Apparently I'm a huge noob for using IE vs Firefox.
In the last couple of days, I've learned a lot about the different virus scanners. There are some scanners that won't detect this keylogging virus at all and other scanners that will only detect a couple of infected files. From my minimal experience over the last 3 days, the only virus scanner that seemed to be most complete was Kaspersky.
Please consider taking the time to do a couple of scans to make sure you don't have this virus on your computer. You can do a free online scan with Kaspersky. Don't assume (as I did) that the scanner you have now will catch it. For more info on the virus see here, information on manually deleting the virus see here, a WOW forum where someone else had a similar problem after model viewer see here, and official Blizz link here (repeated link from yesterday).
It boggles my mind that a fictional character in a game could be worth something, so much so that people take the time to create these complex viruses. But with the expansion releasing soon, perhaps there is a higher demand for gold?