ET POLICY LumOffice Uploading Screenshot

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET POLICY LumOffice Uploading Screenshot";
    flow:established,to_server;
    http.request_line;
    content:"POST /SMService001.asx HTTP/1.1"; bsize:32;
    http.header;
    content:"SOAPAction|3a 20 22|http://tempuri.org/PushScreen|22|";
    http.request_body;
    content:"<soap:Body><PushScreen ";
    content:"<accountID>";
    content:"</accountID><activityID>";
    content:"</activityID><time>";
    content:"</time><screen>/9j/"; fast_pattern;
    reference:md5,084995c3cdee01147226542eb63de872;
    reference:url,lumoffice.com/;
    classtype:policy-violation;
    sid:2030408; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_06_29, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, updated_at 2020_06_29;
)