A challenge has a story, some files and one flag in the form CTF-ORION{...}.
A method that works
- Read the story twice. The title and wording are clues
- Look at the files: type, size, readable text, metadata
- Try the simple ideas first: decode, search, open in the right tool
- Write down what you tried so you do not repeat it
Try it
Open the challenges page, pick a Beginner challenge in a category you like, download its file and work through the list above. Submit the flag when you find it.