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New XProtect definitions identify Yontoo as "OSX.AdPlugin.i" and block all but the latest versions of Java.
A new Trojan lures users to install a Web plug-in that tracks browsing and presents ads. Here's how to remove it.
Trojan.Yontoo.1 is the most prominent of adware Trojans making the rounds that install a plug-in that renders fraudulent ads on Web pages.
Ever wanted to theme your Facebook page? PageRage lets you do it with relative ease, although you've got to download a browser plug-in.