What are the two popular tools for managing indicators of compromise?

• A. YARA and STIX
• B. CRITS and MISP
• C. OpenIOC and YARA
• D. MITRE ATT&CK and CAPEC

Answer: (B)

Indicators of compromise (IOCs) are best managed in dedicated platforms that act as centralized, collaborative repositories for collecting, enriching, and sharing threat indicators. Two widely used open‑source options for this purpose are CRITS and MISP. They are designed to store IOCs like hashes, domains, IPs, and other artefacts, allow teams to annotate and relate indicators to specific incidents, and enable distribution to security tools and partner organizations. They also support ingesting feeds from multiple sources, normalization of data, tagging and scoring, and exporting to common formats for interoperability. This makes IOC management scalable and actionable across an incident response workflow.

YARA and STIX, by contrast, serve different roles: YARA is a rule language for identifying files or data during analysis, not a central IOC repository; STIX is a data model for representing threat intelligence, not a management platform by itself. OpenIOC is an IOC format, while MITRE ATT&CK and CAPEC are knowledge bases describing adversary techniques and attack patterns, not platforms for managing IOC collections.