ET MALWARE Polonium CreepyDrive Download Request

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Polonium CreepyDrive Download Request";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.host;
    content:"graph.microsoft.com"; startswith;
    http.uri;
    content:"/v1.0/me/drive/root|3a|/Downloaded/"; startswith; fast_pattern;
    content:"|3a|/content"; endswith;
    reference:url,microsoft.com/security/blog/2022/06/02/exposing-polonium-activity-and-infrastructure-targeting-israeli-organizations/;
    classtype:trojan-activity;
    sid:2036828; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_06_03, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_06_03;
)