Stereogram

hackerlab

Task: Decode a hidden message from a stereogram image (Magic Eye). Solution: Detect pattern period via autocorrelation (~171 pixels), then apply pixel difference method by subtracting shifted image from original to reveal the hidden flag.

steganography image_analysis python pillow stereogram magic_eye autostereogram pattern_detection autocorrelation pixel_difference

Autostereogram pattern period detection via autocorrelationPixel difference method with pattern-width shiftHidden 3D message decoding

$ ls tags/ techniques/

steganography image_analysis python pillow stereogram magic_eye autostereogram pattern_detection autocorrelation pixel_difference

Autostereogram pattern period detection via autocorrelationPixel difference method with pattern-width shiftHidden 3D message decoding

Analysis

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$ python3 exploit.py --target 192.168.1.1 --port 8080
[*] Connecting to target...
[+] Shell obtained!

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