The PolySwarm Blog

Verticals Targeted: Defense Manufacturing, Telecommunications, Aerospace
Regions Targeted: Western Europe, Middle East
Related Families: MiniJunk, MiniBrowse

Executive Summary

Nimbus Manticore, an Iranian APT group, has intensified its cyberespionage campaign targeting defense, telecommunications, and aerospace sectors in Western Europe and the Middle East, deploying advanced malware such as MiniJunk and MiniBrowse via sophisticated spear-phishing and DLL sideloading techniques. The group’s focus on stealth, obfuscation, and resilient infrastructure underscores its alignment with IRGC strategic priorities.