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

FTP session where a client probes for valid usernames, attempts authentication, switches to ASCII mode, and enters passive mode without performing explicit file listing or transfer operations. This reflects a completed login and session setup sequence, often observed during credential validation or preparatory access prior to further activity.

Identifies HTTP requests targeting the web server root path ("/"), typically used for initial service discovery, host validation, or baseline content inspection prior to deeper enumeration.

Identifies HTTPS requests targeting the web server root path ("/"), typically used for initial service discovery, host validation, or baseline content inspection prior to deeper enumeration