AAPL Stock: 118.03 ( -0.85 )

Printed from

OS X malware definitions update to block Yontoo trojan

updated 02:58 pm EDT, Fri March 22, 2013

Apple responds to security warnings

Apple has silently updated built-in malware definitions in OS X to block the Yontoo trojan, says security firm Intego. In OS X's Xprotect file the trojan is identified as "OSX.AdPlugin.i." Following testing, Intego calls Apple's detection "very specific and potentially location-dependent," and "likely there so as to catch only the surreptitious installations of this file."

The malware comes disguised as a useful or necessary add-on, but in reality installs a plugin for Safari, Chrome, and Firefox that inserts ads into previously ad-free web content. At, for instance, a visitor might suddenly see ads for discount iPads from a third-party vendor. The company's anti-malware system is built into Snow Leopard, Lion, and Mountain Lion.

by MacNN Staff



Login Here

Not a member of the MacNN forums? Register now for free.


Network Headlines

Follow us on Facebook


Most Popular


Recent Reviews

Ultimate Ears Megaboom Bluetooth Speaker

Ultimate Ears (now owned by Logitech) has found great success in the marketplace with its "Boom" series of Bluetooth speakers, a mod ...

Kinivo URBN Premium Bluetooth Headphones

We love music, and we're willing to bet that you do, too. If you're like us, you probably spend a good portion of your time wearing ...

Jamstik+ MIDI Controller

For a long time the MIDI world has been dominated by keyboard-inspired controllers. Times are changing however, and we are slowly star ...


Most Commented