1. ```shell= ┌──(kali㉿kali)-[~/code/redpwn/steg] └─$ file advanced-potion-making advanced-potion-making: data ``` 2. ```shell= ┌──(kali㉿kali)-[~/code/redpwn/steg] └─$ vim advanced-potion-making ``` `:%!xxd`: ![](https://hackmd.io/_uploads/rJuAWzp33.png) ▼ ![](https://hackmd.io/_uploads/By0k-Ma33.png) `Esc`, `:%!xxd -r`, then `:wq` 3. ```shell= ┌──(kali㉿kali)-[~/code/redpwn/steg] └─$ file advanced-potion-making advanced-potion-making: PNG image data, 2448 x 1240, 8-bit/color RGB, non-interlaced ``` 4. ```shell= ┌──(kali㉿kali)-[~/code/redpwn/steg] └─$ java -jar stegsolve.jar Picked up _JAVA_OPTIONS: -Dawt.useSystemAAFontSettings=on -Dswing.aatext=true ``` ![](https://hackmd.io/_uploads/HkhQQz6n2.png) ![](https://hackmd.io/_uploads/Bkd-gfTh2.png) ## REFs - https://hackmd.io/@LoTuX-CTF/Chemistry_CH - https://www.youtube.com/watch?v=9-YczGtaIiY - https://github.com/zardus/ctf-tools/blob/master/stegsolve/install (you only have to use `wget` to have the stegsolve tool ) - https://en.wikipedia.org/wiki/PNG