Ntaccesscheck -

Even if the file DACL denies DOMAIN\BackupOperator , the SeBackupPrivilege overrides the ACL. ntaccesscheck correctly reports when the privilege is present.

While the syntax is complex, the parameters of NtAccessCheck reveal the logic of the operating system. ntaccesscheck

: ntaccesscheck requires administrative privileges for many advanced features (like reading other process tokens or evaluating system objects). Always run from an elevated command prompt when auditing security. Even if the file DACL denies DOMAIN\BackupOperator ,

ntaccesscheck -c "C:\Program Files\VulnService\svc.dll" -u "NT AUTHORITY\SYSTEM" ntaccesscheck