---title:   "Write-up - Sunshine CTF 2016 - Butterfly Effect"date:    2016-03-14 00:00:00tags:    [Write-up, Sunshine CTF 2016]summary: "Write-up about Sunshine CTF 2016 - Butterfly Effect"---
After downloading a picture of a beautiful butterfly, we need to find the flag inside the picture. The file is available [here](https://raw.githubusercontent.com/d0tslashpwn/ctf-files/master/Sunshine-CTF-2016/forensics/butterfly-effect/butterfly.png). We use the application [Steganabara](https://www.wechall.net/downloads/by/user_name/ASC/page-1).
```% java -jar steganabara-1.1.1.jar```
We modify a bit the color as shown below.


We finally find the flag; `sun{READY_THE_4CID_M4GNET!}`.

