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TMA-INTUNE-DEFENDER-2.13

Ensure 'ASR: Block credential stealing from the Windows local security authority subsystem' is set to 'Block'

MoyenneNiveau 1Automatiséeintune-defender

Description

This rule helps prevent credential stealing by locking down Local Security Authority Subsystem Service (LSASS). The recommended state for this setting is: Block. Audit: reads the Intune PolicyManager ASR rules value (via the WinningProvider GUID) and requires the rule entry 9e6c4e1f-7d60-472f-ba1a-a39ef669e4b2=1 (Block).

Méthode de vérification

Méthode d'audit: Registre 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() }); $want = @('9e6c4e1f-7d60-472f-ba1a-a39ef669e4b2=1'); if (@($want | Where-Object { $have -contains $_ }).Count -gt 0) { 'compliant' } else { 'non-compliant: ' + $v } }
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 Block. Defender\Block credential stealing from the Windows local security authority subsystem

Propriétés

Systèmes d'exploitation
Tous
Étiquettes
intune-defenderintuneregistry
Référence
CIS Microsoft Intune for Microsoft Defender Antivirus Benchmark v1.0.0 - 2.13 Ensure 'ASR: Block credential stealing from the Windows local security authority subsystem' is set to 'Block'

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