ET MALWARE Naoinstalad Checkin

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Naoinstalad Checkin";
    flow:to_server,established;
    http.method;
    content:"GET";
    http.uri;
    content:".php?MD="; fast_pattern;
    content:"Naoinstalado"; nocase;
    http.user_agent;
    content:!"Mozilla";
    http.header_names;
    content:!"Referer|0d 0a|";
    content:!"Accept";
    reference:md5,f136f9ec7f7f8cb1a12a9b835183be59;
    reference:url,www.malware-traffic-analysis.net/2017/06/08/index.html;
    classtype:command-and-control;
    sid:2024427; rev:3;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_06_26, deployment Perimeter, performance_impact Moderate, confidence High, signature_severity Major, updated_at 2020_08_06;
)