LucidRook

2026-05-134 minCisco Taloshigh

This threat intelligence newsletter highlights the emerging 'Platform-as-a-Proxy' (PaaP) technique, where attackers abuse legitimate SaaS notifications to bypass traditional email security. It also covers active campaigns, including Storm-1175 deploying Medusa ransomware via CVE-2026-1731, and UAT-10362 targeting Taiwanese organizations with a novel Lua-based malware called LucidRook.

2026-05-136 minCisco Taloshigh

Cisco Talos identified a new threat actor, UAT-10362, targeting Taiwanese organizations with a sophisticated Lua-based malware suite named LucidRook. The attack leverages spear-phishing, DLL sideloading, and compromised FTP servers to deliver staged Lua bytecode payloads while employing strict geo-fencing to evade analysis.