Tracking Threat Actors: How Infrastructure Analysis Reveals Cyber Attack Patterns

This article outlines methodologies for mapping, clustering, and attributing adversary infrastructure using cross-referenced public and private data, illustrated by a CISA-phishing campaign attributed to Pioneer Kitten and a PuTTY-config leak tied to North Korean infrastructure; it covers IOC enrichment, historical DNS pivots, infrastructure tagging, the Diamond Model, and the challenges of inconsistent naming and long-term intelligence tracking.