Archief - Trojan Horse-waarschuwing

Head’s up. SecureMac has discovered a new Trojan horse floating around that affects users of Mac OS X, versions 10.4 and 10.5. It’s “currently being distributed from a hacker website, where discussion has taken place on distributing the Trojan horse through iChat and Limewire.” Here’s more…

“The Trojan horse runs hidden on the system, and allows a malicious user complete remote access to the system, can transmit system and user passwords, and can avoid detection by opening ports in the firewall and turning off system logging. Additionally, the AppleScript.THT Trojan horse can log keystrokes, take pictures with the built-in Apple iSight camera, take screenshots, and turn on file sharing. The Trojan horse exploits a recently discovered vulnerability with the Apple Remote Desktop Agent, which allows it to run as root.

The Trojan is distributed as either a compiled AppleScript, called ASthtv05 (60 KB in size), or as an application bundle called AStht_v06 (3.1 MB in size). The user must download and open the Trojan horse in order to become infected. Once the Trojan horse is running, it will move itself into the /Library/Caches/ folder, and add itself to the System Login Items.”

SecureMac is recommending people to run MacScan 2.5.2 (one of the company’s own products) but it’d stand to reason that other security software would be updated to address the threat by now. Happy computing and be careful!

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