A new variant of the Gameover malware that steals online banking credentials comes with a kernel-level rootkit that makes it significantly harder to remove, according to security researchers from Sophos. Gameover is a computer Trojan based on the infamous Zeus banking malware whose source code was leaked on the Internet in 2011. Gameover stands apart from other Zeus-based Trojan programs because it uses peer-to-peer technology for command and control instead of traditional servers, making it more resilient to takedown attempts.