The flag is hidden inside the Penguin! Solve this challenge before solving my 100 point Scope challenge which uses similar techniques as this one.
File: THE_FILE
Solution:
exiftool Tux.jpg
Comment: ICAgICAgUGFzc3dvcmQ6IExpbnV4MTIzNDUK.
Convert from base64: Password: Linux12345
binwalk Tux.jpg -e --dd=".*"
For some reason it freezes but just control z out of it and then run ls.
cd into the new folder. Theres a zip file.
unzip 1570.zip
It will ask for the password, enter it.
Open the text file. cat flag
Flag: CTFlearn{Linux_Is_Awesome}