ET MALWARE NetBackdoor Checkin
Query · suricata
flow:to_server,established; http.method; content:"POST"; http.uri; content:".php"; http.request_body; content:"|0d 0a|log="; fast_pattern; content:"path="; pcre:"/path=[A-Z]\x3a\x5c[A-F0-9]+\r\nlog=/i";