Windows Security Log Event ID 637

637: Security Enabled Local Group Member Removed

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Member removed from security local group. "Caller user" removed "member name" from the "target" group. Member may be a user, computer or another group.

Type:

AD has 2 types of groups: Security and Distribution. Distribution (security disabled) groups are for distribution lists in Exchange and cannot be assigned permissions or rights. Security (security enabled) groups can be used for permissions, rights and as distribution lists.

Scope:

AD has 3 scopes of groups: Local, Global, Universal. See knowledge base article 326265.

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Description Fields in 637

•  Member Name: %1
•  Member ID: %2
•  Target Account Name: %3
•  Target Domain: %4
•  Target Account ID: %5
•  Caller User Name: %6
•  Caller Domain: %7
•  Caller Logon ID: %8
•  Privileges: %9

Supercharger Enterprise

Load Balancing for Windows Event Collection

 

Mini-Seminars Covering Event ID 637 Monitoring Active Directory for Security and Compliance: How Far Does the Native Audit Log Take You? Top 5 Daily Reports for Monitoring Windows Servers Building a Security Dashboard for Your Senior Executives

 

Upcoming Webinars Assessing the Security of Your Active Directory: User Accounts Anatomy of a Cloud Hack: The Cloudflare/Okta Compromise – A Story of Tokens, Lateral Movement, Persistence and the Salvation of Zero Trust and Hard MFA Tokens

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