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223.104.55.187 has a threat confidence score of 94%. This IP address from China (AS9808, China Mobile Communications Group Co., Ltd.) has been observed in 45 honeypot sessions targeting RDP protocols. First observed on March 20, 2026, most recently active March 20, 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