There has been a lot of debate recently over whether or not it’s a good idea to run an anti-virus program if you’re using Linux. Due to increasing popularity of Linux as Desktop using Gnome Environment the malware authors are becoming more interested about Linux. Linux users think they are immune to viruses, but they’re wrong. Recently malware was found hidden inside a Gnome theme from a reputable site.
Users who installed the theme also got several additional scripts installed as root that were designed to attack internet targets, but it could easily have been much worse. It is incorrect to assume Linux cant get viruses, they do its just rare compared to something like Microsoft Windows OS.
Here is a list of best free Linux anti-virus programs: