I recently came across NanoScan, an online antivirus by Panda Software. What makes this different from other online virus scanners is the ease of use and the speed with which scanning is completed. On my system it took about 10 seconds to download the scanning engine (an activex control) and another 40 seconds to scan the system.

According to their blog, the scanning software is merely 400K and can detect over 800,000 known malware samples! Now that would make it the fastest and smallest antivirus out there. Do give it a try, you have nothing to loose if it doesn’t find any virus!

Please note that NanoScan is only a detection tool, it cannot remove viruses. For that you will have to use other online antivirus tools such as ActiveScan or TrendMicro . Following diagram shows the NanoScan capabilities.