Detect DCSync attacks (MITRE T1003.006) where adversaries abuse Active Directory replication privileges to extract password hashes, by auditing Event ID 4662 for the DS-Replication-Get-Changes GUIDs and flagging non-domain-controller accounts issuing DsGetNCChanges RPC calls.
Install
npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill detecting-dcsync-attack-in-active-directorynpx skills add mukul975/Anthropic-Cybersecurity-Skills --skill detecting-dcsync-attack-in-active-directory -a claude-code -gnpx skills add mukul975/Anthropic-Cybersecurity-Skills --skill detecting-dcsync-attack-in-active-directory -a codex -ggemini skills install https://github.com/mukul975/Anthropic-Cybersecurity-Skills.git --path skills/detecting-dcsync-attack-in-active-directorygh skill install mukul975/Anthropic-Cybersecurity-Skills detecting-dcsync-attack-in-active-directorygit clone --depth 1 https://github.com/mukul975/Anthropic-Cybersecurity-Skills /tmp/mukul975__Anthropic-Cybersecurity-Skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/mukul975__Anthropic-Cybersecurity-Skills/skills/detecting-dcsync-attack-in-active-directory ~/.claude/skills/detecting-dcsync-attack-in-active-directory # Claude Code
cp -R /tmp/mukul975__Anthropic-Cybersecurity-Skills/skills/detecting-dcsync-attack-in-active-directory ~/.agents/skills/detecting-dcsync-attack-in-active-directory # Codex, Cursor, Gemini CLI, Copilot, OpenCode