SecureMac claims to have discovered several variants of a Trojan horse in the wild targeted at users of Mac OS X 10.4 and 10.5. The Trojan is being distributed from a hacker Web site through iChat and Limewire, the company said.

Distributed as a compiled AppleScript called ASthtv05 or as an application, the Trojan allows remote access to the system and can transmit system and user passwords. SecureMac also said the Trojan is also capable of logging keystrokes and turning on file sharing.

New Mac OS X Trojan horse identified
[macworld.com]

[edited by: engine at 5:26 pm (utc) on June 20, 2008]
[edit reason] added quote [/edit]