TMAegis
intune-defender のその他のルール

TMA-INTUNE-DEFENDER-2.13

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

中レベル 1自動intune-defender

説明

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).

チェック方法

監査方法: Windows レジストリ

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 } }
期待される出力
compliant

修正方法

修正方法: ガイダンスまたは IaC パッチ

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

プロパティ

オペレーティングシステム
すべて
タグ
intune-defenderintuneregistry
参照
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'

このホストをチェック

監査が許可されているマシンで実行してください。スキャンは読み取り専用です。

shell
tmaegis scan --target intune-defender