ye , it is offline and they never rly post any information on their forum, some community members complain but thats all .... also on their website, it says if server is online or not( almost top left of screen ^^ )
and u dont rly need a antivirus to be safe lol, i havent had a anti-virus for 3years, still never needed to format or anything, u urself are the best antivirus :D