Stego hunting
1. Audio
2. Morsecode
multimon-ng
3. video
ffmpeg - i --
4. steghide - image
steghide info <file>
steghide extract -sf file
additional for png -
5.String file - show file string
7.binwalk - search embed file in image
binwalk -e file
8.zsteg - embeded in png and bmg only
zsteg -a file
9.stegcracker - bruteforce password.
10.fcrackzip - bruteforce from embeded file specific zip
11. QR image
zbarimg