The anti-virus that I use and that it weathers me for the past several months is NOD32 v 2.7. It has already an anti-spyware/malware built on it. Once when I downloaded a file from what I call a suspicious website, while the download status bar shows and on the process of downloading, after a few seconds the AV detected that it is a "mutiple infiltration" so what I did was I disconnect it thereby cancelling the download.

I also found out a very useful website VirusTotal.com, where you can submit a file sample to be check if there is any anomaly, tampering or suspicious file reside on your computer. It includes 32 AV companies that will help scan your uploaded file.  [...] Read more »