Behavioral threat detected (rule: bioc.sync.critical_termination) Triggered By Known Good Files

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Behavioral threat detected (rule: bioc.sync.critical_termination) Triggered By Known Good Files

L1 Bithead

Over the past two weeks we have been seeing detections/blocks from the following rule "Behavioral threat detected (rule: bioc.sync.critical_termination)" for known good files 7z2301-x64.exe (7-zip install) and PhotosService.exe (part of built-in Windows Photos app).  We only see the detections on a few systems, many systems have these same files without any detections.  VirusTotal shows both files as clean and WildFire indicates they are benign.  What is causing these detections to keep recurring for Behavioral threat detected (rule: bioc.sync.critical_termination) for these files only on certain systems?

 

We have a case open since early last week but have not made any progress on this issue so I thought I would post here.

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