Although the number of viruses in Linux is very low, it is true that they are growing and we should be protected against them.
The popularity of Ubuntu and other distributions makes Linux more accessible to users and the virus is waiting for them.
Fortunately, there are antivirus, and the best is Avest Linux Home Edition, a free antivirus that will help you keep your computer 100% virus free.
It's free and strong, so it's certainly a must.
|Free||1.3.0 for Ubuntu||ALWIL Software|