Cold lures, hot targets. [Research Saturday]

This week, we are joined by Ondrej Kubovič, Security Awareness Specialist from ESET, discussing their work on "FrostyNeighbor: Fresh mischief and digital shenanigans." Ondrej walks us through ESET's latest research into FrostyNeighbor, a long-running Belarus-aligned cyberespionage group that has continued to target Ukrainian government organizations with increasingly sophisticated spearphishing campaigns. We discuss how the group uses malicious PDF lures, server-side victim validation, and an updated JavaScript-based malware chain to selectively deploy espionage tools, demonstrating its ongoing efforts to evade detection while compromising high-value targets across Eastern Europe. The research and executive brief can be found here: ⁠FrostyNeighbor: Fresh mischief and digital shenanigans