CTF Steganography

Quick Start — Try These First

# Basic analysis
file image.png
exiftool image.png          # EXIF metadata (flags hide here!)
strings image.png | grep -iE "flag|ctf"
binwalk image.png           # Embedded files
xxd image.png | tail        # Data appended after EOF

# Steganography tools
steghide extract -sf image.jpg          # JPEG stego (tries empty password)
steghide extract -sf image.jpg -p ""    # Explicit empty password
zsteg image.png                         # PNG/BMP LSB analysis
stegsolve                               # Visual bit-plane analysis (GUI)