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cti-expert

von 7onez · 7onez/cti-expert

Defensive CTI + OSINT analysis skill for Claude Code — 67+ commands and 35 techniques, no API keys required.

cti-expert turns Claude Code into a junior cyber threat intelligence analyst: it enumerates analytic techniques (ACH, SATs, diamond model, kill-chain mapping), pulls OSINT from public sources, and writes up findings in structured formats (STIX-flavored, MITRE ATT&CK-aligned). It is a defensive skill — it does not include offensive or exploit tooling.

Warum nutzen

Hauptfunktionen

Live-Demo

In der Praxis

cti-expert-skill.replay ▶ bereit
0/0

Installieren

Wählen Sie Ihren Client

~/Library/Application Support/Claude/claude_desktop_config.json  · Windows: %APPDATA%\Claude\claude_desktop_config.json
{
  "mcpServers": {
    "cti-expert-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/7onez/cti-expert",
        "~/.claude/skills/cti-expert"
      ],
      "_inferred": true
    }
  }
}

Öffne Claude Desktop → Settings → Developer → Edit Config. Nach dem Speichern neu starten.

~/.cursor/mcp.json · .cursor/mcp.json
{
  "mcpServers": {
    "cti-expert-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/7onez/cti-expert",
        "~/.claude/skills/cti-expert"
      ],
      "_inferred": true
    }
  }
}

Cursor nutzt das gleiche mcpServers-Schema wie Claude Desktop. Projektkonfiguration schlägt die globale.

VS Code → Cline → MCP Servers → Edit
{
  "mcpServers": {
    "cti-expert-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/7onez/cti-expert",
        "~/.claude/skills/cti-expert"
      ],
      "_inferred": true
    }
  }
}

Klicken Sie auf das MCP-Servers-Symbol in der Cline-Seitenleiste, dann "Edit Configuration".

~/.codeium/windsurf/mcp_config.json
{
  "mcpServers": {
    "cti-expert-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/7onez/cti-expert",
        "~/.claude/skills/cti-expert"
      ],
      "_inferred": true
    }
  }
}

Gleiche Struktur wie Claude Desktop. Windsurf neu starten zum Übernehmen.

~/.continue/config.json
{
  "mcpServers": [
    {
      "name": "cti-expert-skill",
      "command": "git",
      "args": [
        "clone",
        "https://github.com/7onez/cti-expert",
        "~/.claude/skills/cti-expert"
      ]
    }
  ]
}

Continue nutzt ein Array von Serverobjekten statt einer Map.

~/.config/zed/settings.json
{
  "context_servers": {
    "cti-expert-skill": {
      "command": {
        "path": "git",
        "args": [
          "clone",
          "https://github.com/7onez/cti-expert",
          "~/.claude/skills/cti-expert"
        ]
      }
    }
  }
}

In context_servers hinzufügen. Zed lädt beim Speichern neu.

claude mcp add cti-expert-skill -- git clone https://github.com/7onez/cti-expert ~/.claude/skills/cti-expert

Einzeiler. Prüfen mit claude mcp list. Entfernen mit claude mcp remove.

Anwendungsfälle

Praxisnahe Nutzung: cti-expert

How to enrich a suspicious indicator (IP, domain, hash) with public OSINT

👤 SOC analysts, incident responders, blue-team engineers ⏱ ~15 min intermediate

Wann einsetzen: You have an IOC from an alert and need context before escalating.

Voraussetzungen
  • Skill cloned — git clone https://github.com/7onez/cti-expert ~/.claude/skills/cti-expert
Ablauf
  1. Submit the indicator
    Enrich 185.234.218.95 using public OSINT — WHOIS, passive DNS (free sources), reputation feeds.✓ Kopiert
    → Structured context: ASN, geo, historical resolutions, known bad
  2. Map to MITRE ATT&CK if applicable
    If this matches a known campaign, map to ATT&CK tactics/techniques.✓ Kopiert
    → TTP list with ATT&CK IDs
  3. Write up
    Produce a tactical report: what it is, confidence level, recommended actions.✓ Kopiert
    → Short, decision-oriented write-up

Ergebnis: A defensible enrichment you can attach to a ticket in minutes.

Fallstricke
  • Treating reputation scores as ground truth — Record the source + date; note confidence explicitly
  • OSINT queries accidentally tip off the target — Only use passive sources; no active scanning
Kombinieren mit: filesystem

Draft a campaign write-up from a handful of artifacts

👤 CTI analysts producing internal reports ⏱ ~45 min advanced

Wann einsetzen: You've been asked to turn a pile of IOCs, TTPs, and notes into a readable brief.

Ablauf
  1. Collate the artifacts
    Here are the IOCs and notes. Cluster them by diamond-model facet (adversary, capability, infra, victim).✓ Kopiert
    → Diamond-model-shaped clustering
  2. Map to ATT&CK
    Map observed behaviors to ATT&CK; note coverage gaps.✓ Kopiert
    → Coverage matrix
  3. Write the brief
    Produce an executive section, a tactical section, and an IOC appendix.✓ Kopiert
    → 3-part report

Ergebnis: A consistent, audience-tiered report ready for review.

Fallstricke
  • Inflating confidence language ('almost certainly') — Force IC-style qualifiers (high/moderate/low) with reasoning

Run an ACH (Analysis of Competing Hypotheses) walk-through

👤 Analysts wrestling with ambiguous attribution ⏱ ~30 min advanced

Wann einsetzen: Multiple actors could explain the evidence; you want structure before picking one.

Ablauf
  1. List hypotheses + evidence
    Hypotheses: H1, H2, H3. Evidence: E1–E10. Set up the ACH matrix.✓ Kopiert
    → Matrix with consistency marks per cell
  2. Identify diagnostic evidence
    Which evidence items have the highest diagnostic value?✓ Kopiert
    → Evidence ranked by ability to discriminate
  3. Report the least-inconsistent hypothesis
    Pick the least-inconsistent hypothesis and list what would flip it.✓ Kopiert
    → Selection + counter-evidence triggers

Ergebnis: A transparent attribution decision with documented reasoning.

Fallstricke
  • Anchoring on the first hypothesis — Force the matrix first, conclusion last

Kombinationen

Mit anderen MCPs für 10-fache Wirkung

cti-expert-skill + filesystem

Process a directory of raw alerts into structured findings

Enrich every IOC under alerts/2025-04-01/ and produce a consolidated daily tactical report.✓ Kopiert

Werkzeuge

Was dieses MCP bereitstellt

WerkzeugEingabenWann aufrufenKosten
indicator-enrichment IOC (IP/domain/hash/URL) Triage of any incoming indicator free OSINT queries
attck-mapping observed behaviors When writing up campaigns or detections 0
structured-analytic-techniques hypotheses + evidence Ambiguous analysis problems 0
report-templates findings Final reporting step 0

Kosten & Limits

Was der Betrieb kostet

API-Kontingent
depends on the OSINT sources used; all default sources are free-tier
Tokens pro Aufruf
2–10k tokens per indicator workflow
Kosten in €
free
Tipp
Start with passive sources only; add paid feeds only if coverage gaps justify it

Sicherheit

Rechte, Secrets, Reichweite

Credential-Speicherung: none by default; any paid feed API key lives in env vars
Datenabfluss: only the OSINT endpoints you allow-list

Fehlerbehebung

Häufige Fehler und Lösungen

Rate limited by a public source

Throttle or switch to an alternate source — many OSINT endpoints are sensitive

Claude hallucinates an enrichment result

Require citations for every claim; reject unsourced enrichment

ATT&CK mapping is too generic

Provide concrete behaviors (processes, commands, network patterns), not high-level summaries

Alternativen

cti-expert vs. andere

AlternativeWann stattdessenKompromiss
claude-cybersecurity-skillYou want broader security skills, not just CTIWider but shallower in CTI specifics
claude-security-research-skillYou're researching vulnerabilities rather than triaging indicatorsDifferent job entirely

Mehr

Ressourcen

📖 Offizielle README auf GitHub lesen

🐙 Offene Issues ansehen

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