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performing-steganography-detection

80 / 100 · Low risk

Fine to try. Some of what it can do is expected: a security skill usually runs scanners and checks websites.

By mukul975/Anthropic-Cybersecurity-Skills (GitHub) · security · 35,906 stars · scanned at commit 54a7988

Detects and extracts hidden data embedded in images, audio, and other media files using steganalysis tools such as StegDetect, zsteg, stegsolve, binwalk, steghide, and OpenStego to uncover covert communication channels. Use when investigating suspected data hiding or exfiltration via media files, espionage/insider-threat cases, or anomalies in media file properties found during standard file analysis.

Works with any agent that supports SKILL.md skills.

What this skill can do

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'performing-steganography-detection' ] || [ -L ~/.agents/skills/'performing-steganography-detection' ]; then echo 'A skill folder named performing-steganography-detection already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/mukul975/Anthropic-Cybersecurity-Skills' "$d" && git -C "$d" checkout --quiet '54a798831d2266a3ca61ce68a7acb80b81160d57' -- 'skills/performing-steganography-detection' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/performing-steganography-detection' ~/.agents/skills/'performing-steganography-detection' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'performing-steganography-detection' ~/.claude/skills/'performing-steganography-detection' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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