SYMBOLCOMMON_NAMEaka. SYNONYMS
apk.spyfrptunnel (Back to overview)

SpyFRPTunnel

aka: fvncBot

A sophisticated mobile surveillance implant operating as a Remote Control System (RCS). This malware family is characterized by a unique, multi-sided communication architecture that abandons traditional HTTP polling. Instead, it hybridizes Firebase Cloud Messaging (FCM) for asynchronous command signaling with Fast Reverse Proxy (FRP) to establish persistent, NAT-bypassing network tunnels, effectively turning the infected mobile device into a server accessible by the attacker.

References
2025-12-22Medium Ireneusz TarnowskiIreneusz Tarnowski
Operational Analysis of Communication Channels in Mobile RCS
SpyFRPTunnel

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