Skip to content

S-1-5-32-579: Access Control Assistance Operators

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

Access Control Assistance Operators
Built-in group

Can query authorization attributes and permissions remotely.

A built-in local group (BUILTIN\...).

Parts

Revision1
Identifier authority5 NT Authority
Sub-authority 132
Sub-authority 2579

Other forms

SIDS-1-5-32-579
objectSid (hex)01020000000000052000000043020000
objectSid (Base64, as in LDIF)AQIAAAAAAAUgAAAAQwIAAA==
LDAP filter(objectSid=\01\02\00\00\00\00\00\05\20\00\00\00\43\02\00\00)
Name on a Windows computer (PowerShell)([System.Security.Principal.SecurityIdentifier]'S-1-5-32-579').Translate([System.Security.Principal.NTAccount]).Value