Ensure 'ASR: Block all Office applications from creating child processes' is set to 'Audit' or higher

MédiaNível 1Automatizadaintune-defender

Descrição

This rule blocks Office apps from creating child processes. Office apps include Word, Excel, PowerPoint, OneNote, and Access. The recommended state for this setting is: Audit. Configuring this setting to Block also conforms to the benchmark. Audit: reads the Intune PolicyManager ASR rules value (via the WinningProvider GUID) and requires the rule entry d4f940ab-401b-4efc-aadc-ad5f3c50688a=1 or d4f940ab-401b-4efc-aadc-ad5f3c50688a=2 (Block, or Audit for the "Audit or higher" wording).

Como é verificado

Método de auditoria: Registro do Windows

registry

$p = (Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\PolicyManager\current\device\Defender' -Name 'AttackSurfaceReductionRules_WinningProvider' -ErrorAction SilentlyContinue).'AttackSurfaceReductionRules_WinningProvider'; if (-not $p) { 'non-compliant: no ASR WinningProvider' } else { $p = ([string]$p).Trim('{}'); $k = 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\PolicyManager\Providers\' + $p + '\default\Device\Defender'; if (-not (Test-Path $k)) { $k = 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\PolicyManager\Providers\{' + $p + '}\default\Device\Defender' }; $v = (Get-ItemProperty -Path $k -Name 'AttackSurfaceReductionRules' -ErrorAction SilentlyContinue).'AttackSurfaceReductionRules'; $have = @(([string]$v) -split '\|' | ForEach-Object { $_.Trim().ToLower() }); $want = @('d4f940ab-401b-4efc-aadc-ad5f3c50688a=1','d4f940ab-401b-4efc-aadc-ad5f3c50688a=2'); if (@($want | Where-Object { $have -contains $_ }).Count -gt 0) { 'compliant' } else { 'non-compliant: ' + $v } }

Saída esperada: compliant

Como é corrigido

Método de correção: Orientação ou patch de infraestrutura

To establish the recommended configuration via configuration profiles, set the following Settings Catalog path to Audit or Block. Defender\Block all Office applications from creating child processes

Propriedades

Sistemas operacionais: Qualquer
Tags: intune-defenderintuneregistry
Referência: CIS Microsoft Intune for Microsoft Defender Antivirus Benchmark v1.0.0 - 2.12 Ensure 'ASR: Block all Office applications from creating child processes' is set to 'Audit' or higher

Verificar este host

Execute isto em uma máquina que você tenha permissão para auditar. A varredura é somente leitura.

shell

tmaegis scan --target intune-defender