First advantage over Windows which every one claims is, Linux is free from virus so it doesn’t need any antivirus…WRONG!
Don’t live in a ‘fool’s paradise’, they also have Linux in their sights!
Only problem is, there are so many distros, they don’t know where to start…lol!
Jokes apart, Linux antivirus products do exist, its just that the number is far too low when compared to those of Windows. Have a look at few major reasons behind this:
It would not be correct to say Linux machines are never infected; they are vulnerable to “rootkit”. Rootkits allow attacker to get top level access to victim’s machine and have full control and during attack user is never alerted about this. Rootkit can spy or modify data and even run applications in background. Some other threats to Linux machines are poisoned DNS entries, spam gateways, backdoor botnets, etc.
You can have a look over the list of viruses here: