Get the Whitepaper called Injecting .NET Ransomware into Unmanaged Process.
You can download it from the following link: https://packetstormsecurity.com/files/download/155395/injecting-dotnetransomeware.pdf
Source: https://packetstormsecurity.com/files/155395/Injecting-.NET-Ransomware-Into-Unmanaged-Process.html