PANDA - Free cloud antivirus

Among all of the free antivirus software we tested for our latest roundup, Panda Cloud Antivirus was the best app at blocking known malware.
The approach is intended to take advantage of the latest signatures without the need for signature-database updates–and if its excellent showing at detecting malware in AV-Test.org’s zoo of half a million samples is any indication, the approach works. Panda’s app produced an impressive 99.4 percent overall detection rate.
For now, we can’t give Panda’s app a complete score, but its impressive ability to detect malware makes it well worth keeping an eye on.

http://acs.pandasoftware.com/cloud/CloudAntivirus.exe