mirror of
https://github.com/EvotecIT/GPOZaurr.git
synced 2026-07-26 11:49:17 +00:00
Refine Defender output merge and list parsing for issue #81 feedback
This commit is contained in:
Przemysław Kłys
@@ -92,7 +92,26 @@
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#>
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if ($Value.Value.Element) {
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$Settings["$SubName"] = $Value.Value.Element.Data -join '; '
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[Array] $ElementValues = foreach ($Element in @($Value.Value.Element)) {
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if (-not $Element) {
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continue
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}
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$ElementName = [string] $Element.Name
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$ElementData = [string] $Element.Data
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if (-not [string]::IsNullOrWhiteSpace($ElementName) -and ($ElementData -eq '' -or $ElementData -eq '0')) {
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$ElementName
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} elseif (-not [string]::IsNullOrWhiteSpace($ElementName) -and -not [string]::IsNullOrWhiteSpace($ElementData) -and $ElementName -ne $ElementData) {
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"$ElementName ($ElementData)"
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} elseif (-not [string]::IsNullOrWhiteSpace($ElementData)) {
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$ElementData
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} elseif (-not [string]::IsNullOrWhiteSpace($ElementName)) {
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$ElementName
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}
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}
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if ($ElementValues.Count -gt 0) {
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$Settings["$SubName"] = $ElementValues -join '; '
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}
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} elseif ($null -eq $Value.Value.Name) {
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# Shouldn't happen but lets see
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Write-Verbose "Tracking $Value"
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@@ -174,7 +193,26 @@
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#>
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if ($Value.Value.Element) {
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$CreateGPO["$SubName"] = $Value.Value.Element.Data -join '; '
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[Array] $ElementValues = foreach ($Element in @($Value.Value.Element)) {
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if (-not $Element) {
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continue
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}
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$ElementName = [string] $Element.Name
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$ElementData = [string] $Element.Data
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if (-not [string]::IsNullOrWhiteSpace($ElementName) -and ($ElementData -eq '' -or $ElementData -eq '0')) {
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$ElementName
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} elseif (-not [string]::IsNullOrWhiteSpace($ElementName) -and -not [string]::IsNullOrWhiteSpace($ElementData) -and $ElementName -ne $ElementData) {
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"$ElementName ($ElementData)"
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} elseif (-not [string]::IsNullOrWhiteSpace($ElementData)) {
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$ElementData
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} elseif (-not [string]::IsNullOrWhiteSpace($ElementName)) {
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$ElementName
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}
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}
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if ($ElementValues.Count -gt 0) {
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$CreateGPO["$SubName"] = $ElementValues -join '; '
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}
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} elseif ($null -eq $Value.Value.Name) {
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# Shouldn't happen but lets see
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Write-Verbose "Tracking $Value"
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@@ -31,25 +31,49 @@ function ConvertTo-XMLRegistryDefenderOnReport {
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}
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}
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foreach ($Registry in $RegistrySettings) {
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if ($Registry.Key -like 'SOFTWARE\Microsoft\Windows Defender*') {
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[PSCustomObject] [ordered] @{
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$UsedNames = [System.Collections.Generic.List[string]]::new()
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$CreateGPO = [ordered] @{
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DisplayName = $GPO.DisplayName
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DomainName = $GPO.DomainName
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GUID = $GPO.GUID
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GpoType = $GPO.GpoType
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FallbackSource = 'RegistrySettings'
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Hive = $Registry.Hive
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Key = $Registry.Key
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Name = $Registry.Name
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Type = $Registry.Type
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Value = $Registry.Value
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Changed = $Registry.Changed
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Filters = $Registry.Filters
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Linked = $GPO.Linked
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LinksCount = $GPO.LinksCount
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Links = $GPO.Links
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}
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$DefenderSettings = 0
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foreach ($Registry in $RegistrySettings) {
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if ($Registry.Key -like 'SOFTWARE\Microsoft\Windows Defender*') {
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$DefenderSettings++
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$SettingName = if ($Registry.Name) { $Registry.Name } else { $Registry.Key }
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$PropertyName = Format-ToTitleCase -Text $SettingName -RemoveWhiteSpace -RemoveChar ',', '-', "'", '\(', '\)', ':'
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if ($PropertyName -in $UsedNames) {
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$UsedNames.Add($PropertyName)
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$TimesUsed = ($UsedNames | Group-Object | Where-Object { $_.Name -eq $PropertyName }).Count
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$PropertyName = -join ($PropertyName, "$TimesUsed")
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} else {
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$UsedNames.Add($PropertyName)
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}
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$SettingValue = $Registry.Value
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if ($null -eq $SettingValue -or "$SettingValue" -eq '') {
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$SettingValue = $Registry.Name
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}
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$CreateGPO[$PropertyName] = $SettingValue
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# Some Defender data can be encoded in either value or value-name depending on setting type.
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if ($Registry.Name -and "$SettingValue" -ne "$($Registry.Name)") {
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$CreateGPO["$($PropertyName)ValueName"] = $Registry.Name
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}
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if ($Registry.Key) {
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$CreateGPO["$($PropertyName)RegistryKey"] = $Registry.Key
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}
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}
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}
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if ($DefenderSettings -gt 0) {
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$CreateGPO['Linked'] = $GPO.Linked
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$CreateGPO['LinksCount'] = $GPO.LinksCount
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$CreateGPO['Links'] = $GPO.Links
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[PSCustomObject] $CreateGPO
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}
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}
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@@ -287,6 +287,39 @@
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}
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}
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}
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if ($Output['Reports']['WindowsDefender']) {
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# Defender can be represented by policy categories and raw registry settings.
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# Merge entries per GPO so fallback fields do not create duplicated-looking rows.
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$MergedWindowsDefender = [System.Collections.Generic.List[PSCustomObject]]::new()
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$GroupedWindowsDefender = $Output['Reports']['WindowsDefender'] | Group-Object -Property DisplayName, DomainName, GUID, GpoType
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foreach ($Group in $GroupedWindowsDefender) {
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$MergedObject = [ordered] @{}
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foreach ($Entry in $Group.Group) {
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foreach ($Property in $Entry.PSObject.Properties) {
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if (-not $MergedObject.Contains($Property.Name)) {
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$MergedObject[$Property.Name] = $Property.Value
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} else {
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$CurrentValue = $MergedObject[$Property.Name]
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$CurrentEmpty = $null -eq $CurrentValue -or ($CurrentValue -is [string] -and $CurrentValue -eq '')
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$NewEmpty = $null -eq $Property.Value -or ($Property.Value -is [string] -and $Property.Value -eq '')
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if ($CurrentEmpty -and -not $NewEmpty) {
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$MergedObject[$Property.Name] = $Property.Value
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} elseif (-not $CurrentEmpty -and -not $NewEmpty -and "$CurrentValue" -ne "$($Property.Value)") {
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$PropertyCounter = 2
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$AlternativeName = -join ($Property.Name, "$PropertyCounter")
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while ($MergedObject.Contains($AlternativeName)) {
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$PropertyCounter++
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$AlternativeName = -join ($Property.Name, "$PropertyCounter")
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}
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$MergedObject[$AlternativeName] = $Property.Value
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}
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}
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}
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}
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$MergedWindowsDefender.Add([PSCustomObject] $MergedObject)
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}
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$Output['Reports']['WindowsDefender'] = $MergedWindowsDefender
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}
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# Normalize - meaning that before we return each GPO report we make sure that each entry has the same column names regardless which one is first.
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# Normally if you would have a GPO with just 2 entries for given subject (say LAPS), and then another GPO having 5 settings for the same type
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# and you would display them one after another - all entries would be shown using first object which has less properties then 2nd or 3rd object
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@@ -56,9 +56,8 @@ Describe 'Defender content detection' {
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[Array] $Result = ConvertTo-XMLRegistryDefenderOnReport -GPO $GPO
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$Result.Count | Should -Be 1
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$Result[0].FallbackSource | Should -Be 'RegistrySettings'
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$Result[0].Key | Should -Be 'SOFTWARE\Microsoft\Windows Defender\MpEngine'
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$Result[0].Name | Should -Be 'MpFolderScanThreadCount'
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$Result[0].MpFolderScanThreadCount | Should -Be '4'
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$Result[0].MpFolderScanThreadCountRegistryKey | Should -Be 'SOFTWARE\Microsoft\Windows Defender\MpEngine'
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}
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}
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@@ -83,8 +82,53 @@ Describe 'Defender content detection' {
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[Array] $Result = ConvertTo-XMLRegistryDefenderOnReport -GPO $GPO
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$Result.Count | Should -Be 1
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$Result[0].Key | Should -Be 'SOFTWARE\Microsoft\Windows Defender\MpEngine'
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$Result[0].Name | Should -Be 'MpFolderScanThreadCount'
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$Result[0].MpFolderScanThreadCount | Should -Be '4'
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$Result[0].MpFolderScanThreadCountRegistryKey | Should -Be 'SOFTWARE\Microsoft\Windows Defender\MpEngine'
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}
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}
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It 'ConvertTo-XMLGenericPolicy prefers list item names over zero-only data' {
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InModuleScope GPOZaurr {
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[xml] $ListValue = @"
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<Value>
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<Element>
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<Name>C:\PathOne</Name>
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<Data>0</Data>
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</Element>
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<Element>
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<Name>D:\PathTwo</Name>
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<Data>0</Data>
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</Element>
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</Value>
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"@
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$GPO = [PSCustomObject] @{
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DisplayName = 'Test Defender GPO'
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DomainName = 'contoso.com'
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GUID = '11111111-1111-1111-1111-111111111111'
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GpoType = 'Computer'
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Linked = $true
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LinksCount = 1
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Links = @('OU=Workstations,DC=contoso,DC=com')
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DataSet = @(
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[PSCustomObject] @{
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Category = 'Windows Components/Microsoft Defender Antivirus/Exclusions'
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Name = 'Path Exclusions'
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State = 'Enabled'
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ListBox = @(
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[PSCustomObject] @{
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Name = 'Path Exclusions'
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Value = $ListValue.Value
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}
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)
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}
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)
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}
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$Result = ConvertTo-XMLGenericPolicy -GPO $GPO -Category 'Windows Components/Microsoft Defender Antivirus*'
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$Result.PathExclusionsPathExclusions | Should -Match 'C:\\PathOne'
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$Result.PathExclusionsPathExclusions | Should -Match 'D:\\PathTwo'
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$Result.PathExclusionsPathExclusions | Should -Not -Be '0; 0'
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}
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}
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}
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