Ensure 'Configure the 'Block at First Sight' feature' is set to 'Enabled'

MoyenneNiveau 1Automatiséeintune-defender

Description

This policy setting configures whether the device checks (in real time) with the Microsoft Active Protection Service (MAPS) before allowing certain content to be run or accessed. The block at first sight feature works when Microsoft Defender Antivirus encounters a suspicious but undetected file. It then queries the Microsoft cloud protection backend and applies heuristics, machine learning, and automated analysis of the file to determine whether the files are malicious. The recommended state for this setting is: Enabled. Audit: reads the registry value(s) behind this Defender policy (HKLM\SOFTWARE\Policies\Microsoft\Windows Defender) and prints compliant only when each satisfies the benchmark value. Policy delivered by Intune only appears here once it has been applied to the device.

Méthode de vérification

Méthode d'audit: Registre Windows

registry

$bad = @(); $v = (Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet' -Name 'DisableBlockAtFirstSeen' -ErrorAction SilentlyContinue).'DisableBlockAtFirstSeen'; if (-not ($null -ne $v -and @(0) -contains [int64]$v)) { $bad += 'DisableBlockAtFirstSeen=' + $v }; if ($bad.Count -eq 0) { 'compliant' } else { 'non-compliant: ' + ($bad -join ', ') }

Sortie attendue: compliant

Méthode de correction

Méthode de correction: Recommandation ou correctif d'infrastructure

To establish the recommended configuration via configuration profiles, set the following Settings Catalog path to Enabled: Administrative Templates\Microsoft Defender Antivirus\MAPS\Configure the 'Block at First Sight' feature

Propriétés

Systèmes d'exploitation: Tous
Étiquettes: intune-defenderintuneregistry
Référence: CIS Microsoft Intune for Microsoft Defender Antivirus Benchmark v1.0.0 - 1.3.2 Ensure 'Configure the 'Block at First Sight' feature' is set to 'Enabled'

Vérifier cet hôte

Exécutez cette commande sur une machine que vous êtes autorisé à auditer. L'analyse est en lecture seule.

shell

tmaegis scan --target intune-defender