If the file is locked, tools like John the Ripper or hashcat are used. Extract the hash: rar2john Theseus.rar > hash.txt Crack it: john --wordlist=rockyou.txt hash.txt

A differentiable nonlinear optimization library by Meta AI.

If you are currently working on this file, here is a general approach for analyzing a .rar archive in a CTF:

Run exiftool Theseus.rar to see if the creator left hints in the comments or creation timestamps.