I have Klam, which is basically the KDE GUI for ClamAV, on my Kubuntu Linux OS. It is extremely easy to use and configure, and like the commercial AV's, can be set up for automatic updates and scanning. I have not had a virus in Windows or Linux since I installed Clam.
given by Anonymous on October 21, 2010
unupdated....
clam is now for windows too: clamav runs in windows with on-access scanner
