ET MALWARE TA421 Wineloader CnC Checkin M3

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE TA421 Wineloader CnC Checkin M3";
    flow:established,to_server;
    urilen:9;
    http.method;
    content:"GET";
    http.uri;
    content:"/auth.php";
    http.user_agent;
    content:"Mozilla|2f|5|2e|0|20 28|Windows|20|NT|20|10|2e|0|3b 20|Win64|3b 20|x64|29 20|AppleWebKit|2f|537|2e|36|20 28|KHTML|2c 20|like|20|Gecko|29 20|Chrome|2f|115|2e|0|2e|5790|2e|171|20|Safari|2f|537|2e|36"; bsize:116; fast_pattern;
    http.header_names;
    content:"|0d 0a|User-Agent|0d 0a|Host|0d 0a|Content-Length|0d 0a|Cache-Control|0d 0a 0d 0a|"; bsize:53;
    http.header;
    content:"|0d 0a|Cache-Control: no-cache|0d 0a|";
    classtype:trojan-activity;
    sid:2051503; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2024_03_06, deployment Perimeter, confidence Low, signature_severity Major, tag c2, updated_at 2024_03_06, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;
)