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157.66.100.8 has a threat confidence score of 96%. This IP address from Vietnam (AS135918, VIET DIGITAL TECHNOLOGY LIABILITY COMPANY) has been observed in 130 honeypot sessions targeting RDP protocols. First observed on March 21, 2026, most recently active March 21, 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