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Normal user-created files are detected as potential ransomware

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Applies to

  • ONTAP 9.15.1
  • Autonomous Ransomware Protection(ARP)

Issue

Normal user-created files (specifically .m4a files) were detected as potential ransomware by NetApp’s Autonomous Ransomware Protection (ARP) feature in ONTAP 9.15.1P2.
 
Example:
 
Suspected file types
You can mark the suspected file types as false positive or potential ransomware attack. The system will make necessary adjustments to the way it detects abnormal activity in the future.
 
Type                             Entropy        
m4a                               High
 
Files
/path/file.2.m4a
/path/file.3.m4a
/path/file.4.m4a

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