I wrote a small tool in bash that rendered useful in quite a few steg challenges in HTB. It usually got me past one or two stages in each challenge.
The tool is written in bash and looks for embedded files and or images or any trailing data, strings, etc.
GitHub URL: GitHub - evyatarmeged/stegextract: Detect hidden files and text in images
There’s also some examples and sample files to experience on
Note: the tool cannot be used for any LSB steg.
I’d be more than happy to answer any questions and of course am open to suggestions.