Ok I was surfing, clicked on a page, and then Avast blocked a trojan and moved it to sandbox, Avast said it didn't harm my computer, but I ran a scan. It came out clean, but I ran a boot scan JIC, and it found the Sirefef virus. I tossed it in the chest, ran a couple of more scans and it says everything is clear. I just wanted to double check and see if there is everything else I needed to do.