Lysa Myers reports for Intego on a new OS X Trojan: specific to Snow Leopard and Lion, it doesn’t require user action to install, is persistent (survives reboot) and has rootkit capabilities that are activated if the infected system is running under root. However, it hasn’t been found in the wild to date.
New Apple Mac Trojan Called OSX/Crisis
David Harley CITP FBCS CISSP
Small Blue-Green World/Mac Virus
Mac Virus 
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