C3PO: Large-Scale Study of Covert Monitoring of C&C Servers via Over-Permissioned Protocol Infiltration J Fuller, RP Kasturi, A Sikder, H Xu, B Arik, V Verma, E Asdar, ... Proceedings of the 2021 ACM SIGSAC Conference on Computer and Communications …, 2021 | 8 | 2021 |