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WN25-00-000190 Outdated or unused accounts on Windows Server 2025 must be removed or disabled.

DISA STIG library V1R4
All changes in this version
first version loaded CAT II

Maps to AC-2(3) via CCI-000017

Title

Outdated or unused accounts on Windows Server 2025 must be removed or disabled.

Control

Open Windows PowerShell. Domain Controllers: Enter "Search-ADAccount -AccountInactive -UsersOnly -TimeSpan 35.00:00:00". This will return accounts that have not been logged on to for 35 days, along with various attributes such as the Enabled status and LastLogonDate. Member servers and standalone or nondomain-joined systems: Copy or enter the lines below to the PowerShell window and enter. (Entering twice may be required.) ([ADSI]('WinNT://{0}' -f $env:COMPUTERNAME)).Children | Where { $_.SchemaClassName -eq 'user' } | ForEach { $user = ([ADSI]$_.Path) $lastLogin = $user.Properties.LastLogin.Value $enabled = ($user.Properties.UserFlags.Value -band 0x2) -ne 0x2 if ($lastLogin -eq $null) { $lastLogin = 'Never' } Write-Host $user.Name $lastLogin $enabled } This will return a list of local accounts with the account name, last logon, and if the account is enabled (True/False). For example: User1 10/31/2025 5:49:56 AM True Review the list of accounts returned by the above queries to determine the finding validity for each account reported. Exclude the following accounts: - Built-in administrator account (Renamed, SID ending in 500). - Built-in guest account (Renamed, Disabled, SID ending in 501). - Application accounts. If any enabled accounts have not been logged on to within the past 35 days, this is a finding. Inactive accounts that have been reviewed and deemed to be required must be documented with the information system security officer (ISSO).

Discussion

Outdated or unused accounts provide penetration points that may go undetected. Inactive accounts must be deleted if no longer necessary or, if still required, disabled until needed. Satisfies: SRG-OS-000118-GPOS-00060, SRG-OS-000590-GPOS-00110

Related controls

CCI-000017

Fix

Regularly review accounts to determine if they are still active. Remove or disable accounts that have not been used in the last 35 days.