While I still have my doubts about this news about a Trojan for OS X. I think it’s better to be safe than sorry, as my server has been hacked before, and I do use Apple’s Remote Desktop feature. I found this simple method that should prevent any issues coming in from that vulnerability. Just run the following command in a Terminal session:
This will disable the use of using this program to get root access. More on this on the TidBits website.
The other thing to help you prevent any Trojan is never to install any programs, how much fun they might be, on your server that you don’t need!