Writeup JHDigitalCTF (John Hammond Digital CTF) 2019 Kategori [Steganography]
Sunday, 10 November 2019 | est. 6 min read |
Tags :
#ctf
#jhdctf
#steganography
Stegosaurus
70
Scientists are struggling with a new mystery: we thought the dinosaurs were gone, but this one has returned! Hmmm... can you solve this mystery?
Download the file below:
File : mystery.png
given Image :
and then we use Stegsolve :
Flag = JHDCTF{mystery_stegsolved}
Winter Wonderland
80
It’s the holiday season! But hmm… they must be hiding something under all that cheer!
Download the file below.
File let_it_snow.txt
File let_it_snow.txt :
Oh the weather outside is frightful
But the fire is so delightful
And since we've no place to go
Let It Snow! Let It Snow! Let It Snow!
It doesn't show signs of stopping
And I've bought some corn for popping
The lights are turned way down low
Let It Snow! Let It Snow! Let It Snow!
When we finally kiss goodnight
How I'll hate going out in the storm!
But if you'll really hold me tight
All the way home I'll be warm
The fire is slowly dying
And, my dear, we're still goodbying
But as long as you love me so
Let It Snow! Let It Snow! Let It Snow!
Oh! It doesn't show signs of stopping
And I've bought some corn for popping
and The lights are turned way down low
Let It Snow! Let It Snow! Let It Snow!
All the way home I'll be warm!
All the way home I'll be warm!
The fire is slowly dying
And, my dear, we're still goodbying
But as long as you love me so
Let It Snow! Let It Snow! Let It Snow!
Let It Snow! Let It Snow! Let It Snow!
there's word snow, so i decided to use stegsnow tools. and Voila!!
# stegsnow let_it_snow.txt
JHDCTF{snow_can_both_hide_and_show}