ET MALWARE KINS/ZeusVM Variant CnC Beacon

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE KINS/ZeusVM Variant CnC Beacon";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:".php/"; fast_pattern;
    pcre:"/\.php\/(?:[a-zA-Z0-9]+\/)+[A-F0-9]{8}$/";
    http.user_agent;
    pcre:"/^[^\r\n]+(?: MSIE |rv\x3a11)/";
    http.request_body;
    pcre:"/^[\x20-\x7e\s]{0,20}[^\x20-\x7e\s]/";
    http.header_names;
    content:!"Referer|0d 0a|";
    content:!"|0d 0a|Referer|0d 0a|";
    reference:md5,7a015848f24de23da43e2ca9970df11e;
    classtype:command-and-control;
    sid:2021520; rev:6;
    metadata:attack_target Client_Endpoint, created_at 2015_07_23, deployment Perimeter, performance_impact Significant, signature_severity Major, tag c2, updated_at 2024_04_22, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;
)