jellyCTF
Alien_transmission [388 pts]
Writeup author: lolmenow
Difficulty: easy
Provided files: alien_transmission.mp3
Description: Note: Volume warning My radio picked up some weird interference - I’m sure it’s aliens but nobody believes me!!!
Listening to the audio file shows nothing special but some squeak like sounds in the back. This clued me in to view the spectogram.
Using audacity, open the audio file and view the spectogram:
Once opened, we see:
There is our flag!
Final flag: jellyCTF{youre_hearing_things}