Building a Cloud-Based Privileged Access Workstation (PAW) with Azure Virtual Desktop (AVD)

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Securing administrative access to various environments is critical in cybersecurity. A Privileged Access Workstation (PAW) is a dedicated system designed to handle sensitive tasks, reducing the risk of credential theft and lateral movement attacks.

Andrew Kemp’s video series demonstrates how to deploy an Azure Virtual Desktop (AVD) as a cloud-based PAW, ensuring a hardened and controlled administrative environment.

You Should Know: Key Steps & Commands for Setting Up AVD as PAW

1. Deploying Azure Virtual Desktop (AVD)

To create a secure PAW, start by setting up AVD with strict access controls:

 Install the AVD module (if not already present) 
Install-Module -Name Az.DesktopVirtualization -Force

Create a new AVD host pool 
New-AzWvdHostPool -ResourceGroupName "PAW-RG" -Name "PAW-HostPool" -Location "EastUS" -HostPoolType "Pooled" -LoadBalancerType "BreadthFirst" 

2. Hardening the PAW Configuration

Apply security best practices to minimize attack surfaces:

 Disable unnecessary services 
Get-Service | Where-Object { $<em>.StartType -eq "Automatic" -and $</em>.Name -notin @("WinRM", "EventLog") } | Stop-Service -Force 
Set-Service -Name "RemoteRegistry" -StartupType Disabled

Enable Windows Defender Application Control (WDAC) 
Set-RuleOption -FilePath "C:\WDAC\Policy.xml" -Option 0 -Delete 

3. Restricting Network Access

Use Azure Network Security Groups (NSGs) to block unauthorized traffic:

 Example: Allow only RDP from a trusted IP 
az network nsg rule create --name "Allow-RDP" --nsg-name "PAW-NSG" --priority 100 --resource-group "PAW-RG" --access Allow --protocol Tcp --direction Inbound --source-address-prefixes "192.168.1.1" --source-port-ranges "" --destination-address-prefixes "" --destination-port-ranges 3389 

4. Enforcing Multi-Factor Authentication (MFA)

Ensure all admin logins require MFA:

 Enable MFA via Conditional Access (Azure AD) 
New-AzureADMSConditionalAccessPolicy -DisplayName "PAW-MFA-Enforcement" -State "Enabled" -Conditions @{ "ClientAppTypes" = @("All"); "Applications" = @("All") } -GrantControls @{ "Operator" = "OR"; "BuiltInControls" = @("Mfa") } 

5. Monitoring & Logging

Enable Azure Sentinel or Microsoft Defender for Cloud for threat detection:

 Enable Defender for Cloud monitoring 
Set-AzSecurityPricing -Name "VirtualMachines" -PricingTier "Standard" 

What Undercode Say

A Privileged Access Workstation (PAW) is a must for securing high-risk admin tasks. By using Azure Virtual Desktop (AVD), organizations can enforce strict security policies, reduce credential exposure, and prevent lateral movement attacks.

Key takeaways:

  • Isolate admin activities from regular workstations.
  • Enforce MFA & network restrictions to block unauthorized access.
  • Monitor logs for suspicious activities using Azure Sentinel.

For further hardening, consider:

  • Just-In-Time (JIT) access via Azure AD PIM.
  • Disabling local admin rights on PAW.
  • Regularly updating security policies.

Expected Output:

A fully secured Azure Virtual Desktop (AVD) PAW with:

✔️ Restricted network access

✔️ MFA enforcement

✔️ Continuous monitoring

✔️ Minimal attack surface

For the full guide, check Andrew Kemp’s video here.

References:

Reported By: Beingageek Paw – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅

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