STIGQter STIGQter: STIG Summary: Microsoft Windows Server 2025 Security Technical Implementation Guide Version: 1 Release: 2 Benchmark Date: 01 Jul 2026:

The Windows Server 2025 built-in administrator account must be renamed.

DISA Rule

SV-278197r1182315_rule

Vulnerability Number

V-278197

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

WN25-SO-000030

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> Accounts: Rename administrator account to a name other than "Administrator".

Check Contents

This applies to member servers and stand-alone or nondomain-joined systems; it is not applicable for domain controllers.

Verify the effective setting in Local Group Policy Editor.

Run "gpedit.msc".

Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options.

If the value for "Accounts: Rename administrator account" is not set to a value other than "Administrator", this is a finding.

For server core installations, run the following command:

Secedit /Export /Areas SecurityPolicy /CFG C:\Path\FileName.Txt

If "NewAdministratorName" is not something other than "Administrator" in the file, this is a finding.

Vulnerability Number

V-278197

Documentable

False

Rule Version

WN25-SO-000030

Severity Override Guidance

This applies to member servers and stand-alone or nondomain-joined systems; it is not applicable for domain controllers.

Verify the effective setting in Local Group Policy Editor.

Run "gpedit.msc".

Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options.

If the value for "Accounts: Rename administrator account" is not set to a value other than "Administrator", this is a finding.

For server core installations, run the following command:

Secedit /Export /Areas SecurityPolicy /CFG C:\Path\FileName.Txt

If "NewAdministratorName" is not something other than "Administrator" in the file, this is a finding.

Check Content Reference

M

Target Key

5719