ET MALWARE BalkanDoor CnC Checkin - Server Response

alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET MALWARE BalkanDoor CnC Checkin - Server Response";
    flow:established,to_client;
    http.stat_code;
    content:"200";
    file.data;
    content:"[CFG]|0d 0a|di="; fast_pattern; depth:10;
    content:"|0d 0a|cn=";
    content:"|0d 0a|du=";
    content:"|0d 0a|int=";
    content:"|0d 0a|rip=";
    content:"|0d 0a|rpo=";
    content:"|0d 0a|scr_dur=";
    content:"|0d 0a|scr_int=";
    reference:url,www.welivesecurity.com/2019/08/14/balkans-businesses-double-barreled-weapon/;
    reference:md5,f70ef75fb0a51b05c43aaec973ac0bc1;
    classtype:command-and-control;
    sid:2027898; rev:3;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_08_20, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, updated_at 2020_09_01;
)