# TJCTF 2022
**Challenge name :** cool-school | *393 solves / 129 points*
**Author :** andrewxie
**Description :***Wow TJ is such a cool school! This image really captures the vibes. But something seems off about the image...*
**Downloads :** [image.png](https://imgur.com/Hn7Uw0f)
This challenge is a classic and it is not very complicated. However, I would like to point out that the associated category is not appropriate. This is a steganography challenge, not forensics challenge.
When I hear "Steganography" I think about an awesome tool named Aperi'Solve (shout-out to Aperi'Kube). It performs many steganographic operations on images, including changing shades and colors. You can found it in the following link : [Aperi'Solve](https://aperisolve.fr)
So, we submit the image and get informations and results about every tasks performed.
## Some informations
[Statistics on the uploaded image](https://imgur.com/KZ315Ux)
For example, we can see that this image was uploaded 228 times. Several participants had the good idea to use this tool to save time. ;)
## Flag
Browsing the **Supperimposed** category, we can see the flag on the top left corner of the image.
[The Flag](https://imgur.com/yQqrKPj)
Flag : `tjctf{l0l_st3g_s0_co0l}`
The flag confirms the real category of the challenge ;) but nvm that was funny.