Rating: 5.0

# Pickle Rick

## Challenge:

You recieve these audio files from someone named Alan Eliasen.


## Solution:

We have two WAV files with two Rick Astley songs, the classic Never Gonna Give You Up and Together Forever.

If we run a Google search for “Alan Eliasen” we find [a page discussing steganography tools](https://futureboy.us/stegano/) and an online version of `steghide`. If we upload `rickroll.wav`, we get an error. However, `together-forever-encoded.wav` decodes immediately to `The password is "big_chungus"!`.

Let’s try that password to decode `rickroll.wav`...

And we have our flag: `UMDCTF-{n3v3r_g0nna_l3t_y0u_d0wn}`.

Original writeup (https://github.com/mcmahoniel/ctf_write-ups/blob/main/2021/umdctf/steganography/pickle_rick/README.md).