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V-253435

CAT II (Medium)

The built-in administrator account must be renamed.

Rule ID

SV-253435r991589_rule

STIG

Microsoft Windows 11 Security Technical Implementation Guide

Version

V2R7

CCIs

CCI-000366

Discussion

The built-in administrator account is a well-known account subject to attack. Renaming this account to an unidentified name improves the protection of this account and the system.

Check Content

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 set to "Administrator", this is a finding.

Fix Text

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".