Retired Staff
Several AV's have added cloud features but the most popular cloud AV's are Panda Cloud, Immunet, Kingsoft Free Antivirus and Baidu.

Avast Free and ZoneAlarm Free Antivirus also have cloud features.

Thanks. :D
Am not sure of this one myself, bit out of the loop so to speak but others have answered with good info on your question... Might be nice to see a test of all the Cloud based solutions head to head if not done so already.

Sorry OP for slightly derailing...


Staff member
Webroot is another cloud-based Antivirus program, except it's not free, but you can find 6-month solutions for no cost.