Windows Security Log Event ID 684

684: Set ACLs of members in administrators groups

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According to MS documentation: "Every 60 minutes on a domain controller a background thread searches all members of administrative groups (such as domain, enterprise, and schema administrators) and applies a fixed security descriptor on them. This event is logged."

I have confirmed this event to exist but it is unclear under exactly what circumstances it is logged.

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Description Fields in 684

•  Target Account Name: %1
•  Target Domain:  %2
•  Target Account ID: %3
•  Caller User Name: %4
•  Caller Domain: %5
•  Caller Logon ID: %6
•  Privileges: %7

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