MDEValidator
1.2.0
PowerShell module to validate Microsoft Defender for Endpoint (MDE) configurations and security settings.
Minimum PowerShell version
5.1
Installation Options
Owners
Copyright
(c) 2026 Nathan Hutchinson. All rights reserved.
Package Details
Author(s)
- Nathan Hutchinson
Tags
Security Defender MDE Endpoint Validation Windows
Functions
Test-MDEConfiguration Get-MDEValidationReport Get-MDEOperatingSystemInfo Get-MDESecuritySettingsManagementStatus Get-MDEOnboardingStatusString Get-MDEManagementType Get-MDEManagedDefenderProductType Get-MDEManagementTypeFallback Get-MDEPolicyRegistryPath Get-MDEPolicySettingConfig Test-MDEPolicyRegistryValue Test-MDEPolicyRegistryVerification Test-MDEServiceStatus Test-MDEPassiveMode Test-MDEAntiSpywareEnabled Test-MDEIoavProtectionEnabled Test-MDENISEnabled Test-MDESignatureAge Test-MDESignatureInfo Test-MDERealTimeProtection Test-MDECloudProtection Test-MDECloudBlockLevel Test-MDECloudExtendedTimeout Test-MDESampleSubmission Test-MDEBehaviorMonitoring Test-MDEOnboardingStatus Test-MDEDeviceTags Test-MDENetworkProtection Test-MDENetworkProtectionWindowsServer Test-MDEDatagramProcessingWindowsServer Test-MDEAutoExclusionsWindowsServer Test-MDEAttackSurfaceReduction Test-MDEThreatDefaultActions Test-MDETroubleshootingMode Test-MDETamperProtection Test-MDETamperProtectionForExclusions Test-MDEExclusionVisibilityLocalAdmins Test-MDEExclusionVisibilityLocalUsers Test-MDESmartScreen Test-MDESmartScreenPUA Test-MDESmartScreenPromptOverride Test-MDESmartScreenDownloadOverride Test-MDESmartScreenDomainExclusions Test-MDESmartScreenAppRepExclusions Test-MDEDisableCatchupQuickScan Test-MDERealTimeScanDirection Test-MDESignatureUpdateFallbackOrder Test-MDESignatureUpdateInterval Test-MDEDisableLocalAdminMerge Test-MDEFileHashComputation Test-MDEPUAProtection
PSEditions
Dependencies
This module has no dependencies.
Release Notes
v1.2.0 — PUAProtection Check
New check:
- Test-MDEPUAProtection — validates AV-engine PUA (Potentially Unwanted Application) protection state
- Pass: PUA protection enabled (Block mode)
- Warning: PUA protection in Audit mode only
- Fail: PUA protection disabled
Total: 384 Pester tests (0 failures), zero PSScriptAnalyzer violations
FileList
- MDEValidator.nuspec
- MDEValidator.psd1
- MDEValidator.psm1
- Private\ConvertTo-HtmlEncodedString.ps1
- Private\Test-IsElevated.ps1
- Private\Test-IsWindowsServer.ps1
- Private\Write-ValidationResult.ps1
- Public\Get-MDEManagedDefenderProductType.ps1
- Public\Get-MDEManagementType.ps1
- Public\Get-MDEManagementTypeFallback.ps1
- Public\Get-MDEOnboardingStatusString.ps1
- Public\Get-MDEOperatingSystemInfo.ps1
- Public\Get-MDEPolicyRegistryPath.ps1
- Public\Get-MDEPolicySettingConfig.ps1
- Public\Get-MDESecuritySettingsManagementStatus.ps1
- Public\Get-MDEValidationReport.ps1
- Public\Test-MDEAntiSpywareEnabled.ps1
- Public\Test-MDEAttackSurfaceReduction.ps1
- Public\Test-MDEAutoExclusionsWindowsServer.ps1
- Public\Test-MDEBehaviorMonitoring.ps1
- Public\Test-MDECloudBlockLevel.ps1
- Public\Test-MDECloudExtendedTimeout.ps1
- Public\Test-MDECloudProtection.ps1
- Public\Test-MDEConfiguration.ps1
- Public\Test-MDEDatagramProcessingWindowsServer.ps1
- Public\Test-MDEDeviceTags.ps1
- Public\Test-MDEDisableCatchupQuickScan.ps1
- Public\Test-MDEDisableLocalAdminMerge.ps1
- Public\Test-MDEExclusionVisibilityLocalAdmins.ps1
- Public\Test-MDEExclusionVisibilityLocalUsers.ps1
- Public\Test-MDEFileHashComputation.ps1
- Public\Test-MDEIoavProtectionEnabled.ps1
- Public\Test-MDENISEnabled.ps1
- Public\Test-MDENetworkProtection.ps1
- Public\Test-MDENetworkProtectionWindowsServer.ps1
- Public\Test-MDEOnboardingStatus.ps1
- Public\Test-MDEPUAProtection.ps1
- Public\Test-MDEPassiveMode.ps1
- Public\Test-MDEPolicyRegistryValue.ps1
- Public\Test-MDEPolicyRegistryVerification.ps1
- Public\Test-MDERealTimeProtection.ps1
- Public\Test-MDERealTimeScanDirection.ps1
- Public\Test-MDESampleSubmission.ps1
- Public\Test-MDEServiceStatus.ps1
- Public\Test-MDESignatureAge.ps1
- Public\Test-MDESignatureInfo.ps1
- Public\Test-MDESignatureUpdateFallbackOrder.ps1
- Public\Test-MDESignatureUpdateInterval.ps1
- Public\Test-MDESmartScreen.ps1
- Public\Test-MDESmartScreenAppRepExclusions.ps1
- Public\Test-MDESmartScreenDomainExclusions.ps1
- Public\Test-MDESmartScreenDownloadOverride.ps1
- Public\Test-MDESmartScreenPUA.ps1
- Public\Test-MDESmartScreenPromptOverride.ps1
- Public\Test-MDETamperProtection.ps1
- Public\Test-MDETamperProtectionForExclusions.ps1
- Public\Test-MDEThreatDefaultActions.ps1
- Public\Test-MDETroubleshootingMode.ps1
Version History
| Version | Downloads | Last updated |
|---|---|---|
| 1.2.0 (current version) | 25 | 4/16/2026 |
| 1.1.0 | 43 | 4/12/2026 |
| 1.0.1 | 22 | 3/23/2026 |
| 1.0.0 | 17 | 3/19/2026 |