As a result, by June 30, 2016, we will discontinue our Linux product sector and concentrate increasingly on developing Avira’s Windows and Mac OS system product portfolio only. Specifically, Avira AntiVir Professional Linux, Avira Server Security Linux and Avira Free Antivirus Linux will be discontinued and Avira Endpoint Security and Avira Business Security Suite will be offered without Linux support.
I don't tested this antivirus with my Fedora. The only antivirus I tested and seam working well it's f-prot.
You can read more about this on avira support webpage.