Unlock SSL Intelligence: How SSL History Boosts Threat Hunting

This article describes how historical SSL/TLS certificate intelligence can be used for proactive threat hunting, illustrating with case studies (KeyPlug/GhostWolf tied to RedGolf/APT41, Cyberhaven extension compromise, DarkPeony, Earth Baxia/PlugX, AsyncRAT). It explains why certificate reuse and issuer anomalies are valuable IOCs, outlines tools and feeds (OpenSSL, SSL Labs, Hunt.io, HuntSQL) and provides example queries and workflows for mapping malicious infrastructure and detecting rogue or unauthorized certificates.