Hackers Deploy USB Malware, RATs, and Stealers in Southeast Asian Government Attacks

A multi-cluster cyberespionage operation in which attackers used USB-propagated malware, multiple RATs, loaders, and a custom stealer to target a Southeast Asian government organization between June and August 2025. Analysts initially observed USB-borne malware dubbed USBFect (also known as HIUPAN), which spreads through removable drives and deploys the PUBLOAD backdoor for lateral movement. Further telemetry revealed two […]

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