castorsCTF20 - Gif
We can extract the numbers we see with convert -coalesce brocoli.gif gif.gif
command.
To extract numbers, there are a ton of tools out there, but I just used
convert -coalesce chal.gif chal.png
.
Numbers: 15 13 7 19 15 6 21 14 14 25 12 15 12
Then I used cyberchef
for guessing which kind of cipher is it
With adding _
to between words and wrapping it in flag format we should get the flag.
Flag: castorsCTF{omg_so_funny_lol}
Read other posts