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Code Signature Mismatch (Little Snitch)


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  • Staff

Frank,

There was a problem with the code signature that was fixed in Malwarebytes for Mac version 3.0.2. However, just in the last couple days, we've seen a handful of people with a similar problem. Can you verify if you're using version 3.0.1, or a newer version? If you're not sure, open the Malwarebytes app and choose About Malwarebytes from the Malwarebytes menu.

If you're using 3.0.2 or 3.0.3, please let me know if you're willing to provide some additional information. Thus far, we're seeing that the RTProtectionDaemon app on the affected systems is byte-for-byte identical to the official copies, and we haven't been able to reproduce the issue on any of our systems here.

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  • Staff

We haven't seen any other cases since that single short period last week, and only a handful then. We've been able to verify that the code signature of the RTProtectionDaemon on the affected machines is correct and valid. We're not sure exactly what happened, but I'm leaning towards thinking this was a temporary Little Snitch bug that has been fixed.

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  • Staff
On 7/14/2018 at 8:58 AM, geekiemac said:

Hello, this issue is still happening. I had it with Little Snitch 4.05 and also now with Little Snitch 4.1.3 nightly (kernel 5180).

macOS 10.13.6 High Sierra

At this point, if you're using the latest version of Malwarebytes for Mac, the problem does not lie with Malwarebytes. The code signature is correct, and has been for some time. This is either an error in macOS or in LittleSnitch. Try restarting your system - which will clear the cache where macOS stores code signature data - to see if that fixes the problem.

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