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通常のユーザー作成ファイルが潜在的なランサムウェアとして検出される

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環境

  • ONTAP 9.15.1
  • Autonomous Ransomware Protection(ARP)

問題

ONTAP 9.15.1P2のNetAppの自律型ランサムウェア対策(ARP)機能によって、ユーザが作成した通常のファイル(特に.m4aファイル)が潜在的なランサムウェアとして検出されました。
 
例:
 
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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