Tencent Security Threat Intelligence Center has detected a large number of attacks originating from overseas IP and some domestic IP against domestic cloud server tenants. The attacker blasted into the server through SSH (port 22), and then executed malicious commands to download the Muhstik botnet Trojan. The botnet will control the compromised server to perform SSH lateral movement, download the Monero mining Trojan, and accept remote commands to launch DDoS attacks.