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Hackers port trojan from Linux to work on Mac OS X

By Lee Kaelin

On October 27, 2011, 10:30 AM

Researchers at security firms ESET and Sophos have discovered that hackers have ported an old Linux backdoor Trojan to work on Apple's Mac OS X platform in an effort to expand the reach of their botnets. The new Trojan, named Tsunami, is derived from the old Linux Trojan Kaiten, which worked in an almost identical manner. Early speculation suggests it is a denial-of-service (DDoS) tool, although security firms are still investigating.

 

"As you can see by the portion of OSX/Tsunami's source code that I have reproduced below, the bash script can be given a variety of different instructions and can be used to remotely access an affected computer," said Graham Cluley in a post at the security firm's website.

Once it is running on the host machine, it connects to an IRC channel and awaits further commands from the hackers. They can then use the combined connections of the all the computers in the botnet to flood servers with requests, bringing them down in DDoS attacks. Hackers are able to download files to the infected computer for it to update itself or install additional malware, and gives complete control of the host machine to execute any command they choose.

"Mac users are reminded that even though there is far less malware in existence for Mac OS X than for Windows, that doesn't mean the problem is non-existent," said Cluley of Sophos. He also reminded users of OS X that participating in a DDoS attack is illegal, whether it is intentional or not, and you certainly would not want anyone having remote control of your computer.

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User Comments: 15

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  1. I dunno why but this makes me happy...?

  2. There will be a lot more of this in the future.... Mac isn't any safer now..... and still overpriced

  3. I cheered at this information personally.

    Tired of MAC users thinking they are impervious to things like this.

  4. For proving the concept that MAC's arent that secure this isnt really that amazing, i always play tricks on my cousin that does graphics designs, of course is not that complex like these kind of Trojans but hell, its still very annoying to him and the most important part! it makes my wallet happy..

  5. Die hard OS X, you are no longer secure as claimed.

  6. Yawn......

  7. So, now windows 8 comes out..and it has no viruses..then mac..has all the viruses.

    WHAT NOW FANBOYS

  8. Wow, that's the second "potential" virus ever reported to be possible on Apple's OSX. Run everybody.... to buy a mac!!!!

    Mac 2, PC 10000000...10000001...10000002

    ha ha

    :super wide grin:

  9. Guest said:

    Wow, that's the second "potential" virus ever reported to be possible on Apple's OSX. Run everybody.... to buy a mac!!!!

    Mac 2, PC 10000000...10000001...10000002

    ha ha

    :super wide grin:

    Hmm... I wonder why there are so many pcs, and only 2 macs. because mac does not have the funding to go on researching new software. Notice how they are always (atleast) 5 years behind everyone else, and yet they are popular. "Apple's got a grip on the gummint, their sellin us a bunch of lies man"

  10. *Hardware, sorry, Hardware lol

  11. modena said:

    I dunno why but this makes me happy...?

    Yeah, strangely me too?

  12. I think the irony is that the port came from an old linux trojan, opposed to a windows virus. Either way, all's fair in worms and trojans, whatever gets infected gets infected, and those with antivirus may luck out and get an easy fix/repair from the AV vendor.

  13. Guest said:

    I cheered at this information personally.

    Tired of MAC users thinking they are impervious to things like this.

    I never knew cosmetic make-up users were ever thinking that...?

  14. burty117 said:

    modena said:

    I dunno why but this makes me happy...?

    Yeah, strangely me too?

    because they think they are invincible to hacks and etc.

  15. the pc world has always been full of creepy-crawlies ...

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