Trojanized VPN Installer Deploys NKNShell Backdoor, Using P2P Blockchain and MQTT Protocols for Covert C2 4 minutes read Malware Trojanized VPN Installer Deploys NKNShell Backdoor, Using P2P Blockchain and MQTT Protocols for Covert C2 Ddos November 22, 2025 0 Read More Read more about Trojanized VPN Installer Deploys NKNShell Backdoor, Using P2P Blockchain and MQTT Protocols for Covert C2