I would estimate that probably 95% of desktop GNU/Linux users do not use any kind of antivirus software, and generally speaking you would more than likely be safe in doing so.However, if you are the type to err more on the side of caution, you may want to know how to install something to ease your mind in this regard.ĬlamAV is an open-source antivirus and malware application for GNU/Linux as well as other systems including BSD, Solaris, and even Microsoft Windows.