ET MALWARE Punto Loader Checkin

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Punto Loader Checkin";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/klog.php"; endswith;
    http.request_body;
    pcre:"/^[\x20-\x7e\r\n]{0,13}[^\x20-\x7e\r\n]/si";
    http.accept;
    content:"text|2f|html|3b|q=0|2e|7|2c 20 2a 2f 2a 3b|q=1";
    http.header_names;
    content:!"Referer";
    classtype:command-and-control;
    sid:2026945; rev:3;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_02_19, deployment Perimeter, malware_family Punto, performance_impact Low, confidence Medium, signature_severity Major, tag Loader, updated_at 2020_09_16;
)