All bets are off in OSX when you are playing around with ROOT access. OSX is NOT designed for someone who has activated ROOT. OSX is designed for users working two levels below superuser level of ROOT and the protections are set up for that.
What were you doing playing a game with ROOT activated?
I believe, to get back to a truly clean Mac OSX install, you are going to have to low level format your drive and do your install. Sorry, but once you have allowed something other than the install disk to have ROOT access, your machine is compromised. There is no telling what was installed outside of the system files that may be affecting the install. Reformat.
I'm sure you know this, but these days (indeed since the mid-1990's) there is no such thing as a user-accessible "low-level format" any more. That's the term for re-writing the sectors on the media. It simply cannot be done by the user on any hard drive manufactured since about 1998 or so. The reason is that the "bad block list" management required for a true low-level format is no longer available to the user.
Obviously, there are manufacturer's utilities that will in fact do a low-level format. But they also have to re-do the bad block list from scratch. No operating system I'm aware of today will allow that.
I think what you meant was "full erase, repartition, and reformat", as opposed to simply doing a "reformat" of an existing partition. Yes?
“All bets are off in OSX when you are playing around with ROOT access.”
This virus doesn’t require root access. It exploits a Java vulnerability to install system-level software.
“I believe, to get back to a truly clean Mac OSX install, you are going to have to low level format your drive and do your install.”
There are relatively simple instructions available to remove this malware without reformatting. It doesn’t do anything evil on its own, only if remotely activated and I believe that capability has been squashed.
As I mentioned above, there’s a Java update out that fixes things. Check Software Update.