ET MALWARE Foudre Checkin M1

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Foudre Checkin M1";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/de/?d=201"; depth:10; fast_pattern;
    content:"&t="; distance:0;
    http.host;
    pcre:"/^[a-f0-9]{8}\.(?:s(?:pac|it)e|net|top)$/";
    http.header_names;
    content:!"Referer|0d 0a|";
    reference:url,researchcenter.paloaltonetworks.com/2017/08/unit42-prince-persia-ride-lightning-infy-returns-foudre/;
    reference:url,twitter.com/ShadowChasing1/status/1339190981703266304;
    classtype:command-and-control;
    sid:2031411; rev:3;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_08_02, deployment Perimeter, performance_impact Moderate, confidence High, signature_severity Major, updated_at 2020_08_11;
)