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.

Free Security Log Quick Reference Chart

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 Top 10 Events to Monitor Examples of 637 Security Enabled Local Group Member Removed: Member Name:cn=alice,DC=elmw2,DC=local Member ID:ELMW2\alicej Target Account Name:AccountingStaff Target Domain:ELMW2 Target Account ID:ELMW2\AccountingStaff Caller User Name:Administrator Caller Domain:ELMW2 Caller Logon ID:(0x0,0x1469C1) Privileges:- Keep me up-to-date on the Windows Security Log. Email*: *We will NOT share this

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