Sophos researchers discovered a new Trojan Horse named as "Tsunami" that infects Mac OS X. Researchers said it appears to be a port of Troj/Kaiten( a Linux backdoor Trojan horse that once it has embedded itself on a computer system listens to an IRC channel for further instructions)
An attacker can get access to infected system and launch DDOS Attack(Distributed Denial of service).
Sophos Anti virus included this OSX/Tsunami-A in virus Definitions, So it can detect these malwares. Don't forget to update your Antivirus.
