alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Reconyc.equo Checkin"; flow:to_server,established; http.method; content:"POST"; http.uri; content:".php?userid="; content:"&mac="; fast_pattern; content:"&auth="; http.header_names; content:!"Referer|0d 0a|"; reference:md5,32c17edee5b29e41f31eda05e78b2241; classtype:command-and-control; sid:2021744; rev:5; metadata:created_at 2015_09_04, malware_family Win32_Reconyc_equo, signature_severity Major, updated_at 2020_10_05;)