red-menshen

China's BPFDoor Got an Upgrade. Passive Defenses Still Can't See It.

John Z Black Mar 28, 2026

Threat Intelligence #bpfdoor #china #red-menshen #telecom #apt #nation-state #threat-hunting #backdoor

Red Menshen's upgraded BPFDoor backdoor now hides even better inside telecom backbone networks, and the only way to find it is active threat hunting that most carriers aren't doing.