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apt29

100 / 100 · Low risk

Fine to try.

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

APT29 (Cozy Bear / Midnight Blizzard, SVR) adversary-emulation playbook — malware-light cloud-identity espionage: no-MFA password spray, OAuth consent/token abuse, Golden SAML, mailbox collection over residential proxies. Use when emulating APT29 against an M365/Entra/AWS-identity estate. Triggers on: 'emulate APT29', 'Cozy Bear', 'Midnight Blizzard', 'NOBELIUM', 'OAuth abuse', 'cloud identity espionage', 'Golden SAML'.

Works with any agent that supports SKILL.md skills.

What this skill can do

We found nothing in the files we read that matches our rules. That does not prove the skill is safe: see the limits of static scanning.

Install

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

if [ -e ~/.agents/skills/'apt29' ] || [ -L ~/.agents/skills/'apt29' ]; then echo 'A skill folder named apt29 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 "$d" checkout --quiet 'bdb1016c93ed687f61ac57481da298c25a47c8f5' -- 'packages/decepticon/decepticon/skills/standard/soundwave/threat-profile/emulation/apt29' && mkdir -p ~/.agents/skills && cp -R "$d"/'packages/decepticon/decepticon/skills/standard/soundwave/threat-profile/emulation/apt29' ~/.agents/skills/'apt29' && 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/'apt29' ~/.claude/skills/'apt29' (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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