\ Event ID 4771 - Kerberos pre-authentication failed

Account Logon Event: 4771

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Account Logon Event ID 4771 - Kerberos pre-authentication failed

Event ID 4771 - Kerberos pre-authentication failed

Event ID 4771
Category Account Logon
Sub category Kerberos Authentication Service
Description Kerberos pre-authentication failed

When a Kerberos pre-authetication fails, event ID 4771 is logged.

This log data gives the following information:

Account Information Account Name
Supplied Realm Name
User ID
Service Information Service Name
Service ID
Network Information Client Address
Client Port
Additional Information Ticket Options
Failure Code
Pre-Authentication Type
Certificate Information Certificate Issuer Name
Certificate Serial Number
Certificate Thumbprint

Why event ID 4771 needs to be monitored?

  • Prevention of privilege abuse
  • Detection of potential malicious activity
  • Operational purposes like getting information on user activity like user attendance, peak logon times, etc.
  • Compliance mandates

Pro tip:

ADAudit Plus account logon real-time pre-configured reports help identify miscreant users attempting logon into machines that requires elevated privileges and provide evidence for any action administered by any user. These reports can be advantageously in overcoming account logon audit challenges.

Event 4771 applies to the following operating systems:

  • Windows Server 2008 R2 and Windows 7
  • Windows Server 2012 R2 and Windows 8.1
  • Windows Server 2016 and Windows 10

Corresponding event ID for 4771 in Windows Server 2003 and older is 675

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