Dahua TCP/37777 Mass SYN Scan Burst (Operation CameraSwarm Recon)

Arnold Chan@slaz

•updated Sep 6, 2026•0•0•3

Detects high-frequency SYN scanning activity targeting TCP port 37777 (commonly associated with Dahua devices) from an external source. This behavior is indicative of automated reconnaissance or mass-scanning campaigns, such as Operation CameraSwarm, attempting to identify exposed or potentially vulnerable IoT/surveillance hardware.