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steganography-techniques

Steganography detection and extraction playbook. Use when analyzing images (LSB, PNG chunks, JPEG DCT, EXIF), audio (spectrogram, DTMF), files (polyglots, appended data, ADS), and text (whitespace, zero-width, homoglyphs) for hidden data.

knowledge/hack-skills/skills/steganography-techniques/SKILL.md

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# SKILL: Steganography Techniques — Expert Analysis Playbook

> **AI LOAD INSTRUCTION**: Expert steganography detection and extraction techniques. Covers image steganography (LSB, PNG chunk hiding, JPEG DCT, EXIF metadata, dimension tricks, palette manipulation), audio steganography (spectrogram, LSB, DTMF, morse), file steganography (polyglots, binwalk, NTFS ADS, steghide), and text steganography (whitespace, zero-width Unicode, homoglyphs). Base models miss the systematic file-type-based analysis approach and tool-specific extraction workflows.

## 0. RELATED ROUTING

Before going deep, consider loading:

- [traffic-analysis-pcap](../traffic-analysis-pcap/SKILL.md) for extracting files from network captures before stego analysis
- [memory-forensics-volatility](../memory-forensics-volatility/SKILL.md) for extracting files from memory dumps
- [classical-cipher-analysis](../classical-cipher-analysis/SKILL.md) if extracted hidden data is further encrypted/encoded

### Tool Reference