zip2john Vampyr.zip > hash.txt john --wordlist=/path/to/rockyou.txt hash.txt Use code with caution. Copied to clipboard If the ZIP is "corrupted" or won't open:
If the file is password-protected, common CTF tactics include:
Use the file command to confirm it is a true ZIP archive and not a renamed file. file Vampyr.zip Use code with caution. Copied to clipboard File: Vampyr.zip ...
Use John the Ripper or fcrackzip with a wordlist like rockyou.txt .
Scan for nested files or "carved" data that might be appended to the end of the archive. binwalk -e Vampyr.zip Use code with caution. Copied to clipboard 4. Extraction & Flag Capture Once the password is found or the file is repaired: Extract: Unzip the contents to a folder. zip2john Vampyr
Provide those details so I can narrow down the solution.
Check for hidden files or interesting naming conventions. unzip -l Vampyr.zip Use code with caution. Copied to clipboard Copied to clipboard Use John the Ripper or
Open the file in a Hex Editor (like HxD or Ghex ) to check the Magic Bytes . A ZIP file should start with 50 4B 03 04 . If these are altered, the file won't be recognized.