A New Backdoor For Mac Users
The latest malware threat aimed at Macs comes under the name of OSX_LAMZEV.A, a fresh backdoor that enables hacker to control the infected system.
November 19, 2008
Once the user decides to launch the bogus app, he is asked to choose an application and a port above 1024. Then the backdoor creates the file /tmp/com.apple.DockSettings and copies this file in the location ~/Library/LaunchAgents. After it has been loaded, the malware deletes the file so the backdoor would be able to execute everytime the system starts up.
The researcher adds "that these malware routines compromise security, as remote malicious users may gain access to an affected system. OSX_LAMZEV.A also has autostart features, so turning one’s infected Mac on automatically runs the backdoor."
So just be careful what apps are you willing to run on your system. It may be the last one on a clean computer.