Logon Logoff Event: 534

Event ID 534 – Logon Failure: User Has Not Been Granted The Requested Logon Type At This Machine

When the local security policy does not allow the user to log on in the requested fashion, event 534 is generated. This event gets generated on the server or workstation where the user failed to logon.

This log data provides the following information:

• User Name
• Domain
• Logon Type
• Logon Process
• Authentication Package
• Workstation Name

Additionally, in Windows Server 2003, the following information is also made available:

• Caller User Name
• Caller Domain
• Caller Logon ID
• Caller Process ID
• Transited Services
• Source Network Address
• Source Port

Why does event ID 534 need to be monitored?

• To detect brute-force, dictionary, and other password guess attacks.
• To detect abnormal and possibly malicious internal activity.
• To come up with a benchmark for the account lockout threshold policy.
• To ensure compliance with regulatory mandates.

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