Logon Logoff Event: 552

Event ID 552 – Logon attempt using explicit credentials

When a user who is already logged on (successfully) creates another logon session with a different set of user credentials, event 552 is generated. The field "logged on user" provides the original user account details, while the "user whose credentials were used" field gives the new user account details.

This log data provides the following information:

• Logged on user
• User Name
• Domain
• Logon ID
• Logon GUID
• User whose credentials were used
• Target User Name
• Target Domain
• Target Logon GUID
• Target Server Name
• Target Server Info
• Caller Process ID
• Source Network Address
• Source Port

Why does event ID 552 need to be monitored?

• To prevent privilege abuse
• To detect abnormal and potentially malicious activity
• To get information on user activity (like user attendance and peak logoff times)
• To ensure compliance with regulatory mandates

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