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APT group HoneyMyte upgrades CoolClient: the backdoor gets a kernel-level Windows rootkit

📅 August 16, 2026 📰 securelist.com 🔍 0 CVE(s) referenced

HoneyMyte’s latest CoolClient variant now leverages a signed kernel-mode Windows rootkit to stealthily hide its presence, protect its files and registry entries, and evade detection during cyber-espionage campaigns across Asia and Russia.

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