Bitdefender QuickScan

From Bitdefender: BitDefender QuickScan combines intelligent local scanning and in-the-cloud scanning to create an advanced online tool which detects e-threats in memory quickly. QuickScan is very lightweight, requiring only a very small browser plug-in for client-side tasks. Unlike other online virus scanners the engines don't need to be downloaded to your system and updated. Scanning of suspicious items is done remotely, at the push of a button, using the BitDefender Antivirus technologies. It detects running malwares, hidden threats (rootkits), and keyloggers. BitDefender QuickScan runs online from any Internet connected PC and it doesn't slow down your PC.