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MSOffice - how to disable just the "executing from heap memory" check


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I'm getting false positives from the latest version of MSAB with Microsoft Office using the "Add In Tools" menu system.  It shows the generic threat and says the technique was "exploit code running from heap memory blocked".  I tried disabling the various MSOffice exploit protections under "Advanced Memory Protection" but that did not correct my issue.  The only way to get MSOffice to be stable was to use "Manage Protected Applications" and turn off "Office Excel", "Office Word", etc.  I didn't really want to turn off everything for Office.

How can I disable MSAB from doing just the heap memory check for MSOffice applications?

 

thanks

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  • Staff

***This is an automated reply***

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  • Root Admin

Hello @glocker

 

Thanks for posting. We need additional logs to debug this issue. Can you please enable logging in the Malwarebytes product as provided in the below screenshot and grab logs.

 

ae-logs-screenshot.png

 

 

To begin, please do the following so that we may take a closer look at your installation for troubleshooting:

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Thank you

 

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I don't have access to that computer right now.  I wasn't concerned about the false positives, as I'm sure those will get worked out as the enhancements to MSOffice protection is tweaked.

I just wanted to know how to disable that check.  Do you still need logs for that?  If you do, I can try to get access later this week.

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  • Root Admin

I'm not  positive which one is causing the alert. You can try the following.

Open up the Malwarebytes program and click on the cogwheel top right
Click on the "Security" tab
Scroll all the way to the bottom to the Exploit Protection settings and click the Advanced Settings button
Click the "Application Behaviour Protection" tab and scroll down to "Office WMI Abuse Prevention" and uncheck the box under "MS Office"
click "apply"

 

image.png

 

You can also try one by one to see which one is the cause. Getting the Enhanced logs should in theory show us which one is causing it. @glocker

 

image.png

 

 

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