ET MALWARE Spyder Loader CnC Checkin

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Spyder Loader CnC Checkin";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:".php"; endswith;
    http.header;
    content:"zte|3a 20|eyJ"; fast_pattern;
    http.header_names;
    content:!"|0d 0a|Referer|0d 0a|";
    http.content_len;
    byte_test:0,=,0,0,string,dec;
    reference:url,x.com/jaydinbas/status/1797968559668400536;
    reference:url,mp.weixin.qq.com/s?__biz=MzI2MDc2MDA4OA==&mid=2247508856&idx=1&sn=256ab2e8e63a406a37088f1b133eb6ff;
    classtype:trojan-activity;
    sid:2053269; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_Endpoint, tls_state plaintext, created_at 2024_06_05, deployment Perimeter, malware_family Spyder, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_06_05;
    target:src_ip;
)