ET MALWARE Ponmocup HTTP Request (generic) M2

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Ponmocup HTTP Request (generic) M2";
    flow:established,to_server;
    threshold:type limit, track by_src, count 1, seconds 600;
    http.header;
    content:"Pragma|3a 20|no-cache|0d 0a|";
    content:"Cache-Control|3a 20|no-cache|0d 0a|";
    http.host;
    pcre:"/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/";
    content:"2"; fast_pattern; startswith;
    http.cookie;
    content:"=";
    pcre:"/^[a-z0-9_-]{300,}/Ri";
    http.accept;
    content:"*/*"; depth:3; endswith;
    http.connection;
    content:"Close"; depth:5; endswith;
    http.header_names;
    pcre:"/\x0d\x0a(?:Cache\-Control|Connection|Pragma)\x0d\x0a(?:Cache\-Control|Connection|Pragma)\x0d\x0a(?:Cache\-Control|Connection|Pragma)\x0d\x0a/";
    content:!"Accept-";
    content:!"Referer|0d 0a|";
    reference:url,blog.Fox-IT.com/2015/12/02/ponmocup-a-giant-hiding-in-the-shadows;
    classtype:trojan-activity;
    sid:2022198; rev:6;
    metadata:created_at 2015_12_02, performance_impact Significant, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_05_01;
)