Operation QUICSILVER: China-Nexus Actor Targets Myanmar Diplomats via VHD-Delivered Go Backdoor

A suspected China-linked threat actor is targeting Myanmar government and diplomatic personnel with a sophisticated VHD-based spearphishing campaign that delivers a multi-stage Go backdoor—QUICAgent—leveraging Cloudflare Workers for dynamic C2 resolution and encrypted HTTP/3 (QUIC) communications.