ET MALWARE MacOS RustDoor Related Activity M1 (POST)

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE MacOS RustDoor Related Activity M1 (POST)";
    flow:established,to_server;
    urilen:17;
    http.method;
    content:"POST";
    http.uri;
    content:"/gateway/register"; fast_pattern;
    http.content_type;
    content:"application/json"; bsize:16;
    http.header_names;
    content:"|0d 0a|accept|0d 0a|host|0d 0a|content-length|0d 0a 0d 0a|"; nocase;
    content:!"Referer"; nocase;
    content:!"User-Agent"; nocase;
    http.request_body;
    content:"|22|os_version|22 3a 22|";
    reference:md5,6dd3a3e4951d34446fe1a5c7cdf39754;
    reference:url,www.bitdefender.com/blog/labs/new-macos-backdoor-written-in-rust-shows-possible-link-with-windows-ransomware-group/;
    classtype:trojan-activity;
    sid:2050799; rev:1;
    metadata:affected_product Mac_OSX, attack_target Client_Endpoint, created_at 2024_02_13, deployment Perimeter, confidence Medium, signature_severity Critical, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_02_13;
    target:src_ip;
)