picoCTF - DISKO 1

Posted on Jan 26, 2026
  • URL: https://play.picoctf.org/practice/challenge/505
  • Title: DISKO 1
  • Tags: Easy, Forensics, picoGym Exclusive
  • Author: Darkraicg492
  • Started: 7 July 2025
  • Solved: 7 July 2025
  • Description: Can you find the flag in this disk image? Download the disk image here.

After downloading a file, it appeared to be a gzipped disk image (dd.gz) file. First, I unzipped it

gunzip disko-1.dd.gz

and then from the hint, it seems like I could use strings command and filter the result using grep

strings disko-1.dd | grep CTF

picoCTF{1t5_ju5t_4_5tr1n9_e3408eef}