ET MALWARE STRRAT CnC Checkin

alert tcp $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE STRRAT CnC Checkin";
    flow:established,to_server;
    dsize:<300;
    content:"ping|7c|STRRAT|7c|"; depth:12; fast_pattern;
    content:"|7c|"; distance:0;
    content:"|7c|"; distance:0;
    content:"|7c|"; distance:0;
    content:"|7c|"; distance:0;
    content:"|7c|"; distance:0;
    classtype:command-and-control;
    sid:2030358; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_06_19, deployment Perimeter, malware_family STRRAT, confidence High, signature_severity Major, updated_at 2020_06_19;
)