ET MALWARE Darkgate Stealer CnC Checkin (POST)

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Darkgate Stealer CnC Checkin (POST)";
    flow:established,to_server;
    urilen:9;
    http.method;
    content:"POST";
    http.uri;
    pcre:"/^\x2f(?:[a-z]{8})$/";
    http.user_agent;
    content:"Mozilla|2f|4|2e|0|20 28|compatible|3b 20|Win32|3b 20|WinHttp|2e|WinHttpRequest|2e|5|29|"; bsize:57;
    http.content_len;
    content:"0"; bsize:1;
    http.accept;
    content:"|2a 2f 2a|"; bsize:3;
    http.connection;
    content:"Keep-Alive"; bsize:10;
    http.header_names;
    content:"|0d 0a|Connection|0d 0a|Accept|0d 0a|User-Agent|0d 0a|a|0d 0a|Content-Length|0d 0a|Host|0d 0a 0d 0a|"; fast_pattern;
    reference:url,malware-traffic-analysis.net/2023/10/04/index.html;
    reference:url,twitter.com/malware_traffic/status/1711575045204488279;
    classtype:trojan-activity;
    sid:2048509; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_10_10, deployment Perimeter, malware_family DarkGate, confidence High, signature_severity Critical, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_10_10, reviewed_at 2023_10_10;
)