Ensure 'Configure Attack Surface Reduction rules: Set the state for each ASR rule' is set to '26190899-1602-49e8-8b27- eb1d0a1ce869:2' or higher

YüksekDüzey 1Otomatikdefender

Açıklama

This rule prevents Outlook from creating child processes, while still allowing legitimate Outlook functions. Rule ID and name: - 26190899-1602-49e8-8b27-eb1d0a1ce869 (Block Office communication application from creating child processes) The recommended state for this setting is: 26190899-1602-49e8-8b27- eb1d0a1ce869:2 (Audit). Rationale: This ASR rule protects against social engineering attacks and prevents exploiting code from abusing vulnerabilities in Outlook. It also protects against Outlook rules and forms exploits that attackers can use when a user's credentials are compromised. 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\Windows Defender Exploit Guard\ASR\Rules:26190899-1602-49e8-8b27-eb1d0a1ce869 (REG_SZ); compliant when it is 2 or 1.

Nasıl denetlenir

Denetim yöntemi: Windows kayıt defteri

registry

$v = (Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Windows Defender Exploit Guard\ASR\Rules' -Name '26190899-1602-49e8-8b27-eb1d0a1ce869' -ErrorAction SilentlyContinue).'26190899-1602-49e8-8b27-eb1d0a1ce869'; if ($null -eq $v) { 'unset' } elseif (($null -ne $v -and @('2','1') -contains "$v")) { 'compliant' } else { "non-compliant: $v" }

Beklenen çıktı: compliant

Nasıl düzeltilir

Düzeltme yöntemi: Kılavuz veya altyapı yaması

Configure through Group Policy: Computer Configuration\Policies\Administrative Templates\Windows Components\Microsoft Defender Antivirus\Microsoft Defender Exploit Guard\Attack Surface Reduction\Configure Attack Surface Reduction rules: Set the state for each ASR rule = 26190899-1602-49e8-8b27-eb1d0a1ce869 with a value of 2 or 1. Test in audit mode (2) first. Local alternative (writes Defender preferences, not the Group Policy value this audit reads): Add-MpPreference -AttackSurfaceReductionRules_Ids 26190899-1602-49e8-8b27-eb1d0a1ce869 -AttackSurfaceReductionRules_Actions 2

Özellikler

İşletim sistemleri: Herhangi biri
Etiketler: defenderantiviruscis-l1
Referans: CIS Microsoft Defender Antivirus Benchmark v1.0.0 - 1.6.1.12 Ensure 'Configure Attack Surface Reduction rules: Set the state for each ASR rule' is set to '26190899-1602-49e8-8b27- eb1d0a1ce869:2' or higher

Bu ana makineyi denetle

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shell

tmaegis scan --target defender