ET ADWARE_PUP pdfspeedup Keep-Alive

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET ADWARE_PUP pdfspeedup Keep-Alive";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/pdf-service/v1/report"; bsize:22;
    http.header_names;
    content:!"User-Agent";
    content:!"Referer";
    http.request_body;
    content:"|5b 7b 22|action|22 3a 22|"; startswith; fast_pattern;
    content:"|22|day|22 3a 22|";
    content:"|22|device_id|22 3a 22|";
    pcre:"/^[a-f0-9]{32}\"/R";
    content:"|22|location|22 3a 22|";
    content:"|22|os|22 3a|";
    content:"|22|qd|22 3a 22|";
    content:"|22|random|22 3a|";
    content:"|22|status|22 3a 22|";
    content:"|22|version|22 3a 22|";
    reference:md5,cbb857a25e7dde72364684d2b90fb1ac;
    classtype:pup-activity;
    sid:2038628; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2022_08_25, deployment Perimeter, performance_impact Low, confidence High, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_08_25, reviewed_at 2025_07_14;
)