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

Seqrite APT researchers describe Operation QUICSILVER, a targeted campaign against Myanmar government and IT personnel that uses VHD-disguised lures and a malicious LNK which abuses ftp.exe to reconstruct and execute a Go-based backdoor named QUICAgent; the implant retrieves C2 via Cloudflare Workers, communicates over QUIC/HTTP3 with RC4-encrypted payloads, achieves persistence via a Startup shortcut, and includes IOCs and MITRE ATT&CK mappings for detection and response.