Just in time for Halloween, there is a virus sweeping through Grand Theft Auto IV’s multiplayer that is turning players into Zombies. If you’ve seen the special Zombie-with-yellow-briefs player skin running around during Grand Theft Auto IV multiplayer, then you may have already contracted the infection.

The signs of infection include access to the zombie skin and having the viral – and pain in the ass - Achievement “Let Sleeping Rockstars Lie”. With the all-new Viral Infection feature at the Rockstar Social Club, members can now see whether they are currently infected, the number of total global infections and the number of infections in the last 24 hours.