ET MALWARE Win32/Aura Ransomware CnC Activity

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Win32/Aura Ransomware CnC Activity";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.user_agent;
    content:"{KIARA}"; fast_pattern;
    http.request_body;
    content:"id="; depth:3;
    content:"&guid=";
    http.header_names;
    content:!"Referer";
    reference:md5,dde4654f1aa9975d1ffea1af8ea5015f;
    classtype:command-and-control;
    sid:2026099; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_09_06, deployment Perimeter, malware_family Aura, confidence High, signature_severity Major, tag Ransomware, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_25, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact;
)