[1] informs:
- Local System account. The name of this account is NT AUTHORITY\System. It is a powerful account that has unrestricted access to all local system resources. It is a member of the Windows Administrators group on the local computer
How to determine/check membership of "NT AUTHORITY\" account, such as
- NT AUTHORITY\SYSTEM (Local System),
- NT AUTHORITY\LOCAL SERVICE
- NT AUTHORITY\NEWTWOK SERVICE
through code (C#, wmi/vbs)?
My discussion in forums determined that this membership is impossible to check by Windows commands or Windows GUI/tools.
The most detailed WMI/VBS scripts for determining group membership [2] does not help for "NT AUTHORITY\" account(s).
Cited:
[1]
Selecting an Account for the SQL Server Agent Service
(SQL Server 2008 R2)
http://msdn.microsoft.com/en-us/library/ms191543.aspx
[2]
Richard Mueller
Group Membership Tests
http://www.rlmueller.net/freecode1.htm.