[thingamajick]

Heh @GalaxyHostPlus that is the reason I love Linux.. No need of antivirus, just enjoy

Linux Desktops are a fine thing. I use mine since 2010. They're just not mainstream enough for a broad interest of infections.
In fact in Ubuntu, for example, it is fairly easy to compromise a standard Linux Desktop and snatch a users's password so a malicious script could sudo itself to install 'never-to-be-discovered'™ root kits which not only will hide themselves effectively from any output, but also will even update themselves to keep disguised in memory.

I am convinced that if a linux system has been infected it is much worse than just a plain old infested windows, which is bad enough alone.

Reading the news about AV Software, I get the creeps. Last highlight: Remote Code Execution in TrendMicro.

As always there's one very important thing to keep in mind:

Security Software is NOT software security!