ET MALWARE VBS.ARS Checkin

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE VBS.ARS Checkin";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:".php?os=windows"; nocase; fast_pattern;
    content:"&user="; distance:0;
    content:"&av="; distance:0;
    content:"&fw="; distance:0;
    content:"&hwid="; distance:0;
    content:"&x="; distance:0;
    http.header_names;
    content:!"Referer|0d 0a|";
    reference:url,twitter.com/B_H101/status/954984729329184768;
    classtype:command-and-control;
    sid:2025230; rev:3;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_01_22, deployment Perimeter, performance_impact Moderate, confidence High, signature_severity Major, updated_at 2020_08_24;
)