Ensure 'Remediation action for Moderate severity threats' is set to 'Quarantine or Remove'

How it is checked

Audit method: Windows registry

$bad = @(); $v = (Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatSeverityDefaultAction' -Name '2' -ErrorAction SilentlyContinue).'2'; if (-not ($null -ne $v -and @('2','3') -contains [string]$v)) { $bad += '2=' + $v }; if ($bad.Count -eq 0) { 'compliant' } else { 'non-compliant: ' + ($bad -join ', ') }

Expected output

compliant

How it is fixed

Fix method: Guidance or infrastructure patch

To establish the recommended configuration via configuration profiles, set the following Settings Catalog path to Quarantine. Moves files to quarantine. or Remove. Removes files from system.: Defender\Remediation action for Moderate severity threats To establish the recommended configuration via Endpoint Security Blade: 1. Navigate to Endpoint Security 2. Click Antivirus 3. Click Create Profile 4. Select Windows for the Platform and Microsoft Defender Antivirus for Profile 5. Name the profile 6. Configure Remediation action for Moderate severity threats to Quarantine. Moves files to quarantine or Remove. Removes files from system.

Check this host

Run this on a machine you are allowed to audit. The scan is read-only.

tmaegis scan --target intune-defender