Free Windows Desktop Pentesting Lab with 31 CTF Challenges Released

I built a free Windows desktop pentesting lab with 31 CTF challenges. The lab, named VulnDesk Pro, is an intentionally vulnerable Windows desktop application written in C#/.NET 8 that simulates a real enterprise environment (e.g., banking, HR, or admin portals). It includes 31 challenges covering vulnerabilities like DLL hijacking, hardcoded secrets, insecure cryptography, and reverse engineering. The tool is portable, requires no installation, and features a progression system with points, achievements, and a completion certificate. It is designed for isolated or virtual machine use due to its vulnerable nature.