Abha_paulnoode_luciferzip -

Using a tool like John the Ripper or Hashcat .

Once the ZIP is cracked, you usually find a flag.txt inside. If the string you provided is the flag itself: abha_paulnoode_luciferzip

Command example: zip2john lucifer.zip > hash.txt && john --wordlist=rockyou.txt hash.txt Using a tool like John the Ripper or Hashcat

Many CTFs use a format like CTF{abha_paulnoode_luciferzip} . abha_paulnoode_luciferzip

Using the file command in Linux confirms it is a ZIP archive.

luciferzip (likely a password-protected ZIP archive).

The underscores suggest it was the final string found after successfully navigating the challenge's logic.