ET MALWARE Likely Geodo/Emotet CnC Beacon

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Likely Geodo/Emotet CnC Beacon";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/"; offset:9; depth:3;
    pcre:"/^\/-?[a-f0-9]{8,9}\/-?\d+(?:\.php|\/)$/";
    http.user_agent;
    content:"Mozilla/5.0 (compatible|3b 20|MSIE 9.0|3b 20|Windows NT 7.1|3b 20|Trident/5.0)"; fast_pattern;
    http.header_names;
    content:!"Accept-";
    content:!"Content-Type";
    content:!"Referer|0d 0a|";
    reference:md5,6c4d198794d1afd2b8bbae6f16bdfaa7;
    classtype:command-and-control;
    sid:2035045; rev:5;
    metadata:attack_target Client_Endpoint, created_at 2015_03_17, deployment Perimeter, confidence Medium, signature_severity Major, tag c2, updated_at 2020_05_21, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;
)