: Use rar2john GF7.rar > hash.txt to pull the encrypted password hash [2].
If the password isn't in the metadata, you’ll need to perform a dictionary or brute-force attack. GF7.rar
Once you have the password (common challenge passwords include variations of "password", "GF7", or "challenge"): : Use unrar x GF7.rar . : Use rar2john GF7