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New malware targets OS X, Linux, and Windows

updated 12:51 pm EDT, Wed July 11, 2012

Uses rare cross-platform attack method

A new piece of malware is targeting Mac, Windows, and Linux users all at the same time, note security firms F-Secure and Sophos. The code pretends to be a needed add-on; in reality victims are opening up a Java Archive file, which then detects the platform a person is using before connecting to a remote server to fetch additional code, creating a back door for hackers. The Mac version of the malware is identified by F-Secure as "Backdoor:OSX/GetShell.A."

Fully updated Macs should be immune to the attack, since the OS X code is actually a PowerPC binary. OS X Lion doesn't support Rosetta, the software needed for backwards compatibility with PowerPC applications. Even with OS X Snow Leopard, Rosetta is only an optional upgrade.

It's rare for malware to target several platforms simultaneously. Most hackers tend to concentrate on either OS X or Windows, and usually the latter. Although Macs are increasing in popularity, Windows users continue to represent a much larger target and therefore a more logical direction for the time and effort involved.



By Electronista Staff
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Comments

  1. The Vicar

    Junior Member

    Joined: 07-01-09

    In other words: when it comes to security holes, Java is the new Microsoft Word, which had this kind of problem about a decade ago. (I remember seeing the headlines for the first cross-platform Word Macro Virus.) Well, that's hardly a surprise. The only real issue is that I expected Flash to have this kind of problem first.

    Of course, those of us using 10.7 who haven't downloaded Java are safe from this, just as those of us who weren't using Microsoft Word were safe.

  1. SockRolid

    Forum Regular

    Joined: 01-21-10

    Agree, except that Microsoft Word is actually popular. Java on OS X? Not so much. Deprecated. And Rosetta has been end-of-lifed starting in OS X 10.7. The vast majority of the human race is safe.

  1. BigMac2

    Forum Regular

    Joined: 12-17-00

    Every third parties runtime environments are more prone to malicious code. Java, Flash, VB macro, they all have been exploited by malware. This is why Apple doesn't allow any of them on iOS.

  1. Evolution_tech

    Fresh-Faced Recruit

    Joined: 09-16-11

    I disagree with SolidRock. Java on OS X is popular since over a third of the most common web sites still use or require it.

  1. baggy_pants

    Fresh-Faced Recruit

    Joined: 12-30-07

    I'm forced to enable Java when I do my online tax and it's a major pain. 4 days spent sorting out issues, the tech team don't understand why java was ever chosen or is still maintained and used.

  1. ljmac

    Fresh-Faced Recruit

    Joined: 11-07-10

    I think you're getting Java confused with JavaScript, which despite the similar name is completely different. JavaScript is ubiquitous on the web, but Java is very rare these days. Only one piece of software I use requires it for one particular function.

  1. BigMac2

    Forum Regular

    Joined: 12-17-00

    Java is require when installing Adobe CS

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