Apple Updates OS X Anti-Malware Definitions to Block 'Yontoo' Adware

Yesterday, word surfaced of new malware targeting major browsers on the Mac platform with adware capable of injecting advertising into users' browsing experiences. The malware, known as "Yontoo", masquerades as a video plug-in or download accelerator in order to trick users into installing the package.


As noted by security firm Intego, Apple has already updated its "Xprotect" anti-malware system to recognize Yontoo and warn users who attempt to install it on their machines.

Apple has decided the Yontoo Adware has fallen too far on the side of undesirable behavior, as they have released an update to the XProtect.plist definitions file to provide Mac OS X with basic detection for the Yontoo adware as OSX.AdPlugin.i. In testing, it appears this detection is very specific and potentially location-dependent. This extra specificity is likely there so as to catch only the surreptitious installations of this file.

Apple routinely uses its Xprotect anti-malware tools introduced in OS X Snow Leopard to provide rudimentary protection against threats, and has expanded its efforts in OS X Mountain Lion with the introduction of Gatekeeper to allow users to restrict app installation to software from identified developers registered with Apple, or even to only apps installed through the Mac App Store.

Apple has also been using Xprotect to enforce minimum version requirements for plug-ins such as Java and Flash Player, forcing users to upgrade from earlier versions known to have significant security issues.

Apple expected to report record revenues — but falling earnings

Fortune reported that Apple is likely to achieve record revenues in Q2—but the first fall in its earnings in a decade.

Apple's revenues are expected to grow from $41 billion to $43 billion, another record for Q2, but margins are expected to have fallen substantially from a peak of just over 47 percent last year to 'between 37.5 and 38.5 percent' this year.

Margins tend to fall with new products, due to high initial investments and reduced yields when pushing the limits of what can be achieved (as with the new iMacs), and it's this falling margin that has impacted Apple's earnings per share…

EPS in Q2 last year was $12.30; the average of analyst predictions for the same quarter this year is $9.85.

The bad news is that every analyst we've surveyed — even the most bullish — believes that for the first time in a decade Apple (AAPL) will report that its income this quarter was lower than the same quarter the year before.

The good news for Apple is that these predictions have already been factored into the current share price.

Judging from the performance of Apple's shares since early March, the smart money has been pouring back into the company for the past three weeks … Wall Street seems to be betting that in the next six to 12 months, those numbers have nowhere to go but up.

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