ET RETIRED BunnyLoader Data Exfiltration Attempt

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET RETIRED BunnyLoader Data Exfiltration Attempt";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/Bunny/Uploader.php";
    http.request_body;
    content:"Content-Disposition|3a 20|form-data|3b 20|name|3d 22|file|22 3b 20|filename|3d 22|BunnyLogs_"; fast_pattern;
    pcre:"/^[A-Z0-9]{4,8}/R";
    content:".zip|22 0d 0a|Content-Type|3a 20|application/octet-stream|0d 0a 0d 0a|PK"; within:52;
    content:"Information.txt"; within:200;
    reference:url,www.zscaler.com/blogs/security-research/bunnyloader-newest-malware-service;
    reference:md5,dbf727e1effc3631ae634d95a0d88bf3;
    classtype:trojan-activity;
    sid:2048405; rev:4;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, created_at 2023_10_04, deployment Perimeter, former_category MALWARE, malware_family BunnyLoader, performance_impact Low, confidence High, signature_severity Major, updated_at 2025_04_17, reviewed_at 2025_04_17;
    target:src_ip;
)