ET MALWARE BadRabbit Ransomware Activity Via WebDAV (infpub)

alert http $HOME_NET any -> any any (
    msg:"ET MALWARE BadRabbit Ransomware Activity Via WebDAV (infpub)";
    flow:established,to_server;
    urilen:18;
    http.method;
    content:"PROPFIND";
    http.uri;
    content:"/admin$/infpub.dat"; fast_pattern;
    http.user_agent;
    content:"Microsoft-WebDAV"; depth:16;
    classtype:trojan-activity;
    sid:2024906; rev:3;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_10_24, deployment Perimeter, malware_family BadRabbit, confidence High, signature_severity Major, tag Ransomware, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_13, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact;
)