get-all-default-domain-apps.ps1

# This sample script gets all Azure AD Application Proxy application "non-custom domain" apps (.msappproxy.net).
#
# This script requires PowerShell 5.1 (x64) and one of the following modules:
#     AzureAD 2.0.2.52
#     AzureADPreview 2.0.2.53
#
# Before you begin:
#    Run Connect-AzureAD to connect to the tenant domain.
#    Required Azure AD role: Global Administrator or Application Administrator or Application Developer

Write-Host "Reading service principals. This operation might take longer..." -BackgroundColor "Black" -ForegroundColor "Green"

$aadapServPrinc = Get-AzureADServicePrincipal -Top 100000 | where-object {$_.Tags -Contains "WindowsAzureActiveDirectoryOnPremApp"}  

Write-Host "Reading Azure AD applications. This operation might take longer..." -BackgroundColor "Black" -ForegroundColor "Green"

$allApps = Get-AzureADApplication -Top 100000 

Write-Host "Reading application. This operation might take longer..." -BackgroundColor "Black" -ForegroundColor "Green"

$aadapApp = $aadapServPrinc | ForEach-Object { $allApps -match $_.AppId} 

Write-Host "Displaying all non-custom domain apps (.msappproxy) applications..." -BackgroundColor "Black" -ForegroundColor "Green"
Write-Host " "

foreach ($item in $aadapApp) { 

    $tempApps = Get-AzureADApplicationProxyApplication -ObjectId $item.ObjectId

    If ($tempApps.ExternalUrl -match ".msappproxy.net") {

       $aadapServPrinc[$aadapApp.IndexOf($item)].DisplayName + " (AppId: " + $aadapServPrinc[$aadapApp.IndexOf($item)].AppId + ")" 

       $tempApps | select ExternalUrl,InternalUrl,ExternalAuthenticationType | fl

    }
}  

Write-Host ("")
Write-Host ("Finished.") -BackgroundColor "Black" -ForegroundColor "Green"
Write-Host ("")