Bach_guitar.rar -

Switch the view to . The flag is often written visually in the higher frequencies of the audio track.

Checking the of the .rar file itself (using exiftool ). Bach_Guitar.rar

Check for hidden data using steghide (common password: bach ). Switch the view to

Text appearing as "waves" in the audio spectrum. Bach_Guitar.rar

A text file named flag.txt extracted from the image.

Typically looks like CTF{...} or FLAG{...} .

The challenge is a forensics and steganography-themed Capture The Flag (CTF) task. It typically involves investigating an archive containing audio or image files related to classical music (specifically Bach) to find a hidden flag. 1. Initial Analysis File Type: .rar archive.