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186.204.20.106 has a high threat confidence level of 66%, originating from São Paulo, Brazil, on the Claro NXT Telecomunicacoes Ltda network (28573). It has been observed across 4 sessions targeting RDP, First observed on March 10, 2026, most recently active March 11, 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