ET MALWARE Evrial Stealer CnC Activity

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Evrial Stealer CnC Activity";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/upload.php?user="; fast_pattern;
    content:"&hwid="; distance:0;
    http.request_body;
    content:"Content-Disposition|3a 20|form-data|3b 20|name=|22|file|22 3b 20|filename=|22|";
    http.header_names;
    content:!"Referer";
    content:!"Accept";
    reference:md5,485069677e997ff6ce193be7258c783f;
    classtype:command-and-control;
    sid:2025266; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_01_30, deployment Perimeter, malware_family Evrial, performance_impact Moderate, confidence High, signature_severity Major, updated_at 2020_08_24;
)