CyberQuest 2025 - Billboard2
Description
An unknown user folder mysteriously appeared in a home directory. The full contents of the home directory were turned over to our IT team for inspection.
They said the following, “It’s just a common image—nothing to see here.”
But… are you sure they checked carefully?
Challenge difficulity: easy
Metadata
- Filename:
image.bmp - Tags:
lsb,steganography,zsteg,stegonline
Solution
Extract the 2 LSB bits from the RGB values was the solution.
It can be done with StegOnline:
https://georgeom.net/StegOnline/extract
Flag: CQ25{34sy_h1dd3n_st3g0}