A Trojan file for the OS X on the Mac has been found. Right now, the threat is benign because the backend server where commands are send to and from is down. Still, it does mean that the threat of this and future malware is very real (Macnn).
Essentially, the image file is a real app that will try to install itself but will require admin permission. It could mean that the user will be prompted to enter a password for their account.
The Macnn does try to point out and sell that the threat is low but I think it's overdoing it. Threat is a threat no matter what it is supposed to do, damage or not. This Trojan and others all depend on element of social engineering and lack of smart computing practice.
I did read a post a few weeks ago regarding such threats. Best line of defense is to think before you click. Second, for general day-to-day use, your account does not need to be an admin level account. Without it, such malware would not no where to install itself on your Mac.