ET MALWARE DonotGroup Pult Downloader Activity (POST) M2

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE DonotGroup Pult Downloader Activity (POST) M2";
    flow:established,to_server;
    urilen:8<>28;
    http.method;
    content:"POST";
    http.uri;
    content:!".php";
    http.content_type;
    content:"application/x-www-form-urlencoded"; bsize:33;
    http.request_body;
    content:"batac="; startswith; fast_pattern;
    http.user_agent;
    content:!"Linux|3b|";
    content:!"iPhone|3b|";
    http.header_names;
    content:"|0d 0a|Content-type|0d 0a|User-Agent|0d 0a|Host|0d 0a|Content-Length|0d 0a|Cache-Control|0d 0a 0d 0a|";
    content:!"Referer";
    reference:md5,892888c036dc4c415e4672a37a4067ff;
    reference:url,twitter.com/ShadowChasing1/status/1576970209327738880;
    classtype:trojan-activity;
    sid:2039085; rev:2;
    metadata:attack_target Client_Endpoint, created_at 2022_10_03, deployment Perimeter, malware_family DonotGroup, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_10_05;
)