Online Scan - AntiVirus

As with Firewalls, there should be at most, one Antivirus program running on your PC. More than that will cause uncertain behaviour. But how do we know that our antivirus is a good one. Or if we scan a file and it passed our antivirus scan, are we sure it is OK? One solution is to scan the file or files using online scanners available from the web. Here are a few of them:

http://housecall.trendmicro.com/
http://www.kaspersky.com/virusscanner
http://www.bitfender.com/scan8/ie.html
http://www.pandasecurity.com/homeusers/solutions/activescan
http://us.mcafee.com/root/mfs
http://onecare.live.com/site/en-US/default.htm
http://pestpatrol.com/
http://www.f-secure.com/en/web/labs_global/removal/online-scanner

Even easier is to upload one file and have it scanned by multiple antivirus software. This can be done at: http://www.virustotal.com/

Malware can be checked by submitted a file to this website:
http://malwr.com/about/

Alternatively, one can use a sandbox to test our suspicious applications first. Some of the sandbox are:
Norman Sandbox - www.norman.com/microsites/nsic

(this article can also be found at:
http://pckingsford.com//index.php?option=com_content&task=blogcategory&id=19&Itemid=39 )