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deobfuscating-powershell-obfuscated-malware

75 / 100 · Review before installing

Check before installing. 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

Systematically deobfuscates multi-layer PowerShell malware using AST analysis, dynamic tracing, and tools like PSDecode and PowerDecode to reveal hidden payloads and C2 infrastructure. Use during incident response or malware analysis when a PowerShell script is obfuscated with encoding, string manipulation, or invocation tricks and you need to recover the underlying commands, dropped payloads, or C2 endpoints.

Works with any agent that supports SKILL.md skills.

What this skill can do

Safer alternatives

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Install

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

if [ -e ~/.agents/skills/'deobfuscating-powershell-obfuscated-malware' ] || [ -L ~/.agents/skills/'deobfuscating-powershell-obfuscated-malware' ]; then echo 'A skill folder named deobfuscating-powershell-obfuscated-malware 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 "$d" checkout --quiet '54a798831d2266a3ca61ce68a7acb80b81160d57' -- 'skills/deobfuscating-powershell-obfuscated-malware' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/deobfuscating-powershell-obfuscated-malware' ~/.agents/skills/'deobfuscating-powershell-obfuscated-malware' && 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/'deobfuscating-powershell-obfuscated-malware' ~/.claude/skills/'deobfuscating-powershell-obfuscated-malware' (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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