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reverser-dotnet-malware

95 / 100 · Low risk

Fine to try. Some of what it can do is expected: a coding skill usually runs build and test commands.

By BitterSecurity/Decepticon (GitHub) · coding · 6,581 stars · scanned at commit bdb1016

.NET malware analysis — dnSpy/ILSpy decompilation, de-obfuscation (ConfuserEx, .NET Reactor, Babel, Crypto Obfuscator), behavioral analysis of managed assemblies, PowerShell cradle extraction, and config decryption for common .NET RAT families.

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/'reverser-dotnet-malware' ] || [ -L ~/.agents/skills/'reverser-dotnet-malware' ]; then echo 'A skill folder named reverser-dotnet-malware already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/BitterSecurity/Decepticon' "$d" && git -C "$d" checkout --quiet 'bdb1016c93ed687f61ac57481da298c25a47c8f5' -- 'packages/decepticon/decepticon/skills/standard/reverser/dotnet-malware' && mkdir -p ~/.agents/skills && cp -R "$d"/'packages/decepticon/decepticon/skills/standard/reverser/dotnet-malware' ~/.agents/skills/'reverser-dotnet-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/'reverser-dotnet-malware' ~/.claude/skills/'reverser-dotnet-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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