performing-threat-intelligence-sharing-with-misp

# Performing Threat Intelligence Sharing with MISP ## Overview MISP (Malware Information Sharing Platform) is an open-source threat intelligence platform designed for collecting, storing, distributing, and sharing cybersecurity indicators and threat information. PyMISP is the official Python library for interacting with MISP instances via the REST API, enabling programmatic event creation, attribute management, tag assignment, galaxy cluster attachment, and feed synchronization. This skill covers using PyMISP to create events with structured IOCs (IP addresses, domains, file hashes, URLs), enrich events with MITRE ATT&CK tags, manage sharing groups and distribution levels, search for existing intelligence, and export in STIX 2.1 format for interoperability with other platforms. ## When to Use - When conducting security assessments that involve performing threat intelligence sharing with misp - When following incident response procedures for related security events - When performing scheduled security testing or auditing activities - When validating security controls through hands-on testing ## Prerequisites - MISP instance (v2.4+) with API access enabled - Python 3.9+ with `pymisp` (`pip install pymisp`) - MISP API key (Settings > Auth Keys) - Understanding of MISP data model (Events, Attributes, Objects, Tags, Galaxies) - Knowledge of TLP marking and sharing protocols ## Steps 1. Install PyMISP: `pip install pymisp` 2. Initialize `ExpandedPyMISP(url, key, ssl=True)`...