Dodifs22.part31.rar -

Attempted to extract the file using unrar x DODIFS22.part01.rar (assuming standard multi-part naming, though the prompt only specified .part31). Observation: The archive is password-protected. 2. Password Recovery (Brute Force/Guessing) Standard methods for CTF archives:

If : Used strings , file , or hexdump to find readable characters. 4. Flag Extraction DODIFS22.part31.rar

or what tool did you use to find it?