Why Modern C2 Detection Requires Behavioral Modeling, Not Decryption by John Mancini

Vectra AI describes how modern command-and-control (C2) frameworks evade traditional detection by making payloads look benign, reusing reputable domains or cloud infrastructure, and obfuscating beacon patterns through timing and data jitter; the paper argues that decryption and destination reputation are insufficient and presents a compact LSTM with self-attention model trained on unlabeled telemetry and malicious/benign samples to detect the statistical behavioral signal of control without decryption.