ET MALWARE CBReplay.P Ransomware

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE CBReplay.P Ransomware";
    flow:established,to_server;
    urilen:33;
    http.uri;
    pcre:"/^\/[a-f0-9]{32}$/";
    http.user_agent;
    content:"MSIE 9.0|3b|"; fast_pattern;
    http.header_names;
    content:"|0d 0a|User-Agent|0d 0a|Host|0d 0a 0d 0a|"; startswith;
    http.host;
    pcre:"/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/";
    classtype:trojan-activity;
    sid:2017269; rev:5;
    metadata:attack_target Client_Endpoint, created_at 2013_08_01, deployment Perimeter, performance_impact Moderate, signature_severity Major, tag Ransomware, updated_at 2024_04_08, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact;
)