PLATINUM continues to evolve, find ways to maintain invisibility

# Executive summary Microsoft documents an evolution of the PLATINUM APT group's file-transfer tool that misuses Intel AMT Serial-over-LAN (SOL) to perform OS-independent, stealthy communications that bypass host firewalls and network monitoring; the report describes the protocol, implementation details, provisioning/credentialing methods, observed use in a small number of Southeast Asian organizational victims, and detection capabilities in Windows Defender ATP.