I'd like to recommend Raymond Hettinger's talk from last month, Where he talks about how to contribute to the Python project. I think it's a great talk even if you're not coming from the Python world and can serve as general tips for contributing to a large open source project.

https://youtu.be/-TdrFjDJn5E

Seems more like a way for the involved parties to collect data on new ransomware popping up on the web than a genuine effort to help victims.