TMA-DEFENDER-1.18

Ensure 'Turn off routine remediation' is set to 'Disabled'

MediaNivel 1Automatizadadefender

Descripción

This policy setting configures whether Microsoft Defender Antivirus automatically takes action on all detected threats. The action to be taken on a particular threat is determined by the combination of the policy-defined action, user-defined action, and the signature- defined action. The recommended state for this setting is: Disabled. Rationale: If this setting is enabled, Microsoft Defender prompts the user to take action on detected threats. Allowing users to choose threat remediation actions is not considered a best practice, as it can lead to inconsistent or unsafe responses. Audit reads the Group Policy registry value and prints 'compliant', 'unset' (policy not configured, reported as FAIL) or the non-compliant value. Registry value: HKLM\SOFTWARE\Policies\Microsoft\Windows Defender:DisableRoutinelyTakingAction (REG_DWORD); compliant when it is 0. Remediation writes 0 locally; in a domain set it through the ADMX so Group Policy does not revert it.

Cómo se verifica

Método de auditoría: Registro de Windows

registry

$v = (Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender' -Name 'DisableRoutinelyTakingAction' -ErrorAction SilentlyContinue).'DisableRoutinelyTakingAction'; if ($null -eq $v) { 'unset' } elseif (($null -ne $v -and @(0) -contains [int64]$v)) { 'compliant' } else { "non-compliant: $v" }

Salida esperada: compliant

Cómo se corrige

Método de corrección: Comando de shell

shell

$p = 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender'; if (-not (Test-Path -Path $p)) { New-Item -Path $p -Force | Out-Null }; New-ItemProperty -Path $p -Name 'DisableRoutinelyTakingAction' -Value 0 -PropertyType DWord -Force | Out-Null

Propiedades

Sistemas operativos: Cualquiera
Etiquetas: defenderantiviruscis-l1
Referencia: CIS Microsoft Defender Antivirus Benchmark v1.0.0 - 1.18 Ensure 'Turn off routine remediation' is set to 'Disabled'

Verificar este host

Ejecute esto en un equipo que tenga permiso para auditar. El escaneo es de solo lectura.

shell

tmaegis scan --target defender