stegomedium

Your Eyes Lie To You

hackerlab

Task: HTML file with text encoded as HTML entities that looks normal visually. Solution: Analyze character codes to find Unicode homoglyphs (Mathematical Sans-Serif Small block) hiding the flag.

$ ls tags/ techniques/
steganographyunicodehomoglyphhtml_entitiesmathematical_symbolsinvisible_textcharacter_encoding
Unicode homoglyph steganographyHTML entity decoding and analysisCharacter code comparison
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