Antino Backdoor Uses Outlook and OneDrive for C2 in China-Nexus Espionage Campaign

A China-nexus espionage campaign tracked by Cisco Talos is deploying a previously undocumented backdoor, Antino, against government and policy organizations across Asia, including Taiwan, India, the Philippines, and Thailand. The backdoor uses Microsoft Outlook and OneDrive as command-and-control channels.