Server 2008

Well known SIDs in Active Directory

—FOR USERS—

User Well known SID

Creator Owner S-1-3-0
Administrator S-1-5-21domain-500

Guest S-1-5-21domain-501

KRBTGT S-1-5-21domain-502
Interactive S-1-5-4

Anonymous S-1-5-7


—FOR GROUPS—
Group Well known SID

Everyone S-1-1-0

Enterprise Domain Controllers S-1-5-9

Authenticated Users S-1-5-11

Domain Admins S-1-5-21domain-512

Domain Users S-1-5-21domain-513

Domain Computers S-1-5-21domain-515

Domain Controllers S-1-5-21domain-516

Cert Publishers S-1-5-21domain-517

Schema Admins S-1-5-21domain-518

Enterprise Admins S-1-5-21domain-519

Group Policy Creator Owners S-1-5-21domain-520

Administrators S-1-5-32-544

Users S-1-5-32-545

Guests S-1-5-32-546

Account Operators S-1-5-32-548

Server Operators S-1-5-32-549

Print Operators S-1-5-32-550

Backup Operators S-1-5-32-551

Replicators S-1-5-32-552

Pre-Windows 2000 Compatible Access S-1-5-32-554

Remote Desktop Users S-1-5-32-555

Network Configuration Operators S-1-5-32-556

Incoming Forest Trust Builders S-1-5-32-557

Enterprise Read-only Domain Controllers S-1-5-21domain-498

Read-only Domain Controllers S-1-5-21domain-521

Allowed RODC Password Replication Group S-1-5-21domain-571

Denied RODC Password Replication Group S-1-5-21domain-572

Event Log Readers S-1-5-32-573

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