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DYLD_PRINT_TO_FILE exploit found in the wild

Published August 4th, 2015 at 9:47 AM EDT , modified August 4th, 2015 at 9:47 AM EDT

Adam Thomas, a researcher at Malwarebytes, discovered a new adware installer yesterday that is using the DYLD_PRINT_TO_FILE exploit, discovered last month, to install itself with root privileges.

The full story can be found on Malwarebytes Unpacked.


  • Patrick Mele says:

    Installing itself is a scary thought to my Macs Safety, Thanks again Thomas and “congrads” to you in your new position @Malwarebytes Unpacked, although I favor a red Apple to the new Blue-Logo!!

  • Tim says:

    When I click on Malwarebytes Unpacked I get a pop up that Safari cannot verify that site! Started on Aug 9.

  • Nigel says:

    Hi, Thomas. Are you going to continue posting links here to Mac-related articles on the Malware Bytes site? It makes it easier to find the relevant items! Many thanks for your excellent work, hope you’re enjoying the new job!

  • Thanh Gannoe says:

    New OS X vulnerability being exploited in the wild. It s only really fixed in El Capitan as a side effect of Apple introducing the new and widely reported rootless security feature which introduces fine grained file permissions.

    • Thomas says:

      Actually, the DYLD_PRINT_TO_FILE vulnerability was fixed in the latest Yosemite update (10.10.5). The fix has nothing to do with El Capitan’s “rootless” feature.

  • Roberto says:

    Hi Thomas. my name is Roberto. i have 2 question. i receive a email from you in April or may with 2 links wish is and i want ask you wish one is going to help me to clean my Macbook Pro 2012 is look like i have a virus and is working very slow and also is flossing every time. please can you help me. thank you Thomas

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