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S-1-5-80-0: All Services

SID Decoder and Well-Known SIDs: Decode a Windows SID (S-1-5-32-544, objectSid hex or Base64, Entra ID S-1-12-1) and look up every well-known SID: Administrators, SYSTEM, Domain Admins…

Paste a SID from a permission list, an event log, whoami /all or a registry key (S-1-5-32-544), or an objectSid in hex or Base64 from an LDAP tool, and see what each part means, which well-known account or group it is, and its other forms. Entra ID SIDs (S-1-12-1-…) are turned back into the object ID, and an object ID into its SID. Domain SIDs you paste are decoded on this page and not put in its address. SIDs and names are Microsoft's (Security identifiers); the explanations are ours.

Try: S-1-5-32-544, S-1-5-18, S-1-1-0, S-1-5-11, S-1-5-21-domain-512, S-1-16-12288

All Services
NT Authority

Every service process configured on the computer.

A service SID (NT SERVICE\name): the numbers are a SHA-1 hash of the service name in capitals. sc showsid name gives a service's.

Parts

Revision1
Identifier authority5 NT Authority
Sub-authority 180
Sub-authority 20

Other forms

SIDS-1-5-80-0
objectSid (hex)01020000000000055000000000000000
objectSid (Base64, as in LDIF)AQIAAAAAAAVQAAAAAAAAAA==
LDAP filter(objectSid=\01\02\00\00\00\00\00\05\50\00\00\00\00\00\00\00)
Name on a Windows computer (PowerShell)([System.Security.Principal.SecurityIdentifier]'S-1-5-80-0').Translate([System.Security.Principal.NTAccount]).Value