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unexpected kernel mode trap - ntfs.sys

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i am currently in the trial of MB3, i am planning to get a license because the detection rate really amazes me. What doesn't amaze me, is the problem MB3 causes to my win 10 installation. Every 3rd or 4th boot i get the BSOD unexpected kernel mode trap - ntfs.sys. I looked into the minidump and noticed they are caused by the MbamChameleon.sys. Minidump is attached to this post.

What can i do to avoid this? I have the latest version of MB3 installed.



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This is a known issue with older versions of Malwarebytes as well as Avast.  You currently have component package version 1.0.365 of Malwarebytes while the most recent is 1.0.441.  You may download the latest version from here and install it over the top of your existing installation then restart your system to ensure that the new components are loaded into memory.  Once that's done open Malwarebytes and verify that your version info listed under Settings>About matches what is shown in the image below:


You also need to make certain that Avast is fully up to date as they recently released a patch to fix this issue.  To do so you may follow the instructions in this post (you can wait for it to happen automatically, try rebooting to trigger it and wait 5 minutes or you may execute a command to force it to update).

Please let us know how it goes and if there are any other issues or if this issue persists.


Edited by exile360
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I did both and tried a couple of reboots and restarts, and the problem didn't occur anymore, it seems to be fixed. What surprises me though, is that i didn't have the newest version of MB3 since i have automatic Updates activated and it said i had the latest version.

Anyway, thanks a lot! Even giving support for 3rd party software ??


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You're very welcome, I'm glad to be of service :)

Yes, the issue with automatic updates in Malwarebytes is that for one, it only always checks for database updates and only occasionally checks for new program versions, and new program versions are metered out to users by the update servers on a semi-random basis (primarily to prevent flooding the update servers with large simultaneous worldwide downloads which would be bad because they'd basically be DDoS'ing their own update servers with such massive download spikes whenever a release occurs).  Unfortunately it also means that it can very easily occur that an installation of Malwarebytes can end up one or more versions behind for an extended period of time.  They have been and continue to tweak and adjust the way that it works in order to attempt to get program updates out more promptly to all users but it's still far from perfect in how it currently functions.

With that said, you can always force a program update check by using the Install Application Updates button found under Settings>Application in Malwarebytes (I recommend doing so once every week or at least once a month, like when you install your Windows Updates if you wish to make it part of a regular maintenance routine).

If there is anything else we might assist you with please don't hesitate to let us know.


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With that said, you can always force a program update check by using the Install Application Updates button found under Settings>Application in Malwarebytes (I recommend doing so once every week or at least once a month, like when you install your Windows Updates if you wish to make it part of a regular maintenance routine).

Ah okay that makes sense, thanks for the information i will do that. Great help again!

Thank you very much!


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You're welcome :)

That's how I do it, and making it part of my normal update/maintenance routine each month makes it much easier to manage and remember (it's the same day I check for Windows Updates (Patch Tuesday), Adobe Flash Player updates (usually released on the same day to coincide with Microsoft's regular patching schedule, especially now that Flash is integrated into MS Edge browser), Adobe Reader etc. that way I can get it all over with all at once and not have to worry about whether any of my major web facing and/or security applications are up to date or not.  I sometimes check more frequently since MS occasionally releases some patches out-of-band with the normal updating schedule, especially for emergency security updates and pre-release/preview monthly rollups that they sometimes issue but I always at the very least do so on Patch Tuesday (the second Tuesday of each month) that way I know for a fact that I've patched everything each month and don't have to sweat it later on.

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