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43.136.51.54 has a threat confidence score of 86%. This IP address from China (AS45090, Shenzhen Tencent Computer Systems Company Limited) has been observed in 15 honeypot sessions targeting RDP protocols. First observed on March 15, 2026, most recently active March 16, 2026.
Identifies RDP clients attempting authentication using Network Level Authentication (NLA) with the NTLM challenge-response protocol. This occurs during the CredSSP negotiation phase before a remote desktop session is established and indicates an active credential authentication attempt against the RDP service