ET MALWARE APT28 Zebrocy/Zekapab Reporting to CnC M3

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE APT28 Zebrocy/Zekapab Reporting to CnC M3";
    flow:established,to_server;
    threshold:type limit, count 1, seconds 30, track by_src;
    http.method;
    content:"POST";
    http.uri;
    content:".php";
    http.user_agent;
    content:"Mozilla|20|v5.1|20 28|Windows"; depth:21;
    http.request_body;
    content:"regid="; depth:6;
    content:"%20FIXED,%20TOTAL|3a|%20"; distance:0;
    content:"%0AHost%20Name|3a|%20%20%20%20%20%20"; distance:0;
    content:"%0AOS%20Name|3a|%20%20%20%20%20"; fast_pattern;
    content:"%0AOS%20Version|3a|%20%20%20%20%20%20"; distance:0;
    reference:url,unit42.paloaltonetworks.com/dear-joohn-sofacy-groups-global-campaign/;
    classtype:targeted-activity;
    sid:2026762; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_01_07, deployment Perimeter, malware_family Zebrocy, malware_family Zekapab, performance_impact Low, confidence High, signature_severity Major, tag APT28, updated_at 2020_08_27;
)