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OpenCTI

Tool manual · Kali & common usage

SOC · Advanced · SOC lane

AdvancedThreat Intelligence
Authorized usage only. Capture and inspect traffic only on systems and networks you own or have written permission to analyze.

What is OpenCTI?

OpenCTI is a knowledge-graph CTI platform (STIX/TAXII).

Structure actor/malware/tool relationships for intel teams.

Official website: OpenCTI · Documentation

When do you use it?

  • You need Structured CTI platform with STIX/TAXII.
  • You are following a CYNARKS lab or authorized engagement that calls for OpenCTI.
  • You already tried simpler checks and need this tool’s deeper capability.

Who uses it?

  • Security practitioners
  • Students in authorized labs
  • Engineers validating their own systems

How do you use it? (typical flow)

  1. Install OpenCTI using the steps below (prefer Kali package or official installer).
  2. Confirm you have authorization for the target (lab VM, own system, or written scope).
  3. Run --help / man (or the Help section) to see current flags for your version.
  4. Start with a safe example from Basic commands against localhost or an authorized lab target.
  5. Record what you ran, what you observed, and any follow-up (filter, report, remediation).

Help & manual (like man / --help)

Every serious tool has a built-in way to look up flags. Learn these first so you are not stuck memorizing every option.

  1. 1. Docs

    https://docs.opencti.io/

Kali Linux

Docker compose stack — dedicated host.

1. Installation

OSInstallation
Kali LinuxDocker compose stack — dedicated host.
DockerOpenCTI docker compose

2. Basic commands

  1. 1. Ingest lab IOC set

    Import STIX bundle

    Ingest lab IOC set

  2. 2. Show help

    Import --help

    List flags for your installed version (same habit as man/--help).

  3. 3. Short help

    Import -h

    Alternate help flag when supported.

5. Useful features

  • Knowledge graph
  • Connectors

6. Practical examples

  1. Example 1: Ingest lab IOC set

    Import STIX bundle

    Ingest lab IOC set

  2. Example 2: Show help

    Import --help

    List flags for your installed version (same habit as man/--help).

  3. Example 3: Short help

    Import -h

    Alternate help flag when supported.

7. Important notes

  • Operationalize threat intel.
  • Authorized targets only — labs, systems you own, or written permission.
  • Prefer reading --help / man / official docs for your installed version; flags change over time.

Related course: soc analyst blue team · Commands: /commands#siem