ctf-writeup/2023/GREP CTF 2023/Missing Kitty/README.md

1.7 KiB

Missing Kitty

My kitty is missing. Can you find her ? Last seen saying meow meow under the blanket !!

About the Challenge

We were given a file (You can download the file here) and we need to find the flag using that picture

How to Solve?

To solve this, Im using stegseek first to extract hidden data from files by performing bruteforce attack. Here is the command to bruteforce the image using rockyou.txt wordlist

stegseek Missing.jpg /usr/share/wordlists/rockyou.txt

stegseek

We got txt file. If we open the file, we got this message

Dk what's this, some kitten language

memmemmmmeemmememeemeemmmeemeemmmeemeeeemmemmmmmmeemeememeeeemmemmemmmmmmeememeemeememmemeeememmmeeememmmeeeemmemmemeemmmmmmememmmmmememmemmmeemmeememmemeemeeemmeemmmmemeemeemmmeemeemmmeeeemmemmemmmmmmeeeemmemeemeeeemeeemememmemmmmmmeemmeemmeemeeeemeeemememeemeeemmeemmemmmmemmmmmmeememmmmeemmememeeemmemmmemeeemmmemmmmmmemmemmemmemmmmmmeemmmmemeemeememmemmmmmmeemmemmmeemmememeemeemmmeememmemeemmeeemeememmmmeeememmmeemmememeemmemmmmemeeemmmmmememmmmmememmemememmmeemmmmemeememeemeemmememmemmmmmmeememmemeeememmmmemeemmmmemmmmmmeememmmmeemmememeeemmemmeemmememmemmeeemeeemmeemmemmmmmmeeeemmemeemeeeemeeemememeeemmemmmemmmmmmeemmeeemeememmemeemmeemmeeememmmmmmememmeemmeemmeemeemmmeemmmmemeemmeeemmemmmmmmmeeememmmemmmmmmeeeemeemememmeemeeemeeemmeemmeemmeemmeemeeememmmemeeeeemeemeemmmmeemmmemeeememmmeeememmmeemeemmmeemmemememeeeeemeememeemmeemmmemeeememmmeeememmmmeemmeemeemeeemmeeeeeme

Change the character m to 0 and character e to 1. And then decode the binary to obtain the flag

flag

GREP{steghide,Sw33t_l1ttle_k1tt3n}