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  • Log Location:
  • Considerations:
  1. Windows
  2. Forensics
  3. Event Logs
  4. Event Log IDs
  5. SMB

551 SMB Auth Failed

Previous31010 SMB Client Failed to ConnectNextSMB Forensics

Last updated 1 year ago

Log Location:

  • Microsoft\Windows\SMBServer\Security

Considerations:

  • This event is logged by default

  • Can be used to hunt for failed authentication attempts over SMB.

LogoWin 2019 Server - SMB Session Authentication Failure - Event ID 551 - Microsoft Q&AMicrosoftLearn