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43.128.21.119 has a threat confidence score of 73%. This IP address from Hong Kong (AS132203, Tencent Building, Kejizhongyi Avenue) has been observed in 6 honeypot sessions targeting RDP protocols. First observed on March 25, 2026, most recently active March 25, 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