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

[jdbst56]

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.

[Fm12345]

While the case is analyzed and If it's a false positive then you can right click on the alert and add alert exception.. select the files based on which you want to add exception. 

This would make sure that alert is not triggered again on those files by that specific rule.

You can later review your exception based on the case feedback 

[jdbst56]

Hi, I've added an alert exception for the detected file (PhotosService.exe) but Behavioral threat detected (rule: bioc.sync.critical_termination) is still being triggered when I try to launch the Photos app.

[E.Jafarov]

Hi jdbst56

You can right click on the alert and go to: manage alert option-> exclude alert.

The agent continues to raise excluded alerts on the endpoint, but they are not saved or displayed in Cortex XDR.

More information about exclusion: https://docs-cortex.paloaltonetworks.com/r/Cortex-XDR/Cortex-XDR-Pro-Administrator-Guide/Alert-Exclu...