tys-adventure/fsociety-ransomware-POC ? reverse-engineered prompt

Build me a safe Mr Robot inspired ransomware demo in C++ for learning purposes, but make sure it does not actually damage real files. I want it to scan a folder, list files, pretend to process only text files in a sandbox, show a fake encryption and rename flow, and then display a creepy ransom note style page like the screenshots in the repo.

It should be easy to run on Linux with the libraries mentioned in the README, and it’s fine to look up current docs online if you need to. Keep the code stable, simple, and clearly marked as a proof of concept. Add the missing pieces around the basic flow, the warning screens, and the fake C&C reporting so it feels complete for a demo, but keep everything harmless and reversible.