ET WEB_SPECIFIC_APPS WP Generic revslider Arbitrary File Download

alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (
    msg:"ET WEB_SPECIFIC_APPS WP Generic revslider Arbitrary File Download";
    flow:established,to_server;
    http.uri;
    content:"/admin-ajax.php?"; fast_pattern;
    content:"slider_show_image";
    pcre:"/^[^\r\n]*(?:%2(?:52e(?:%2(?:52e(?:%(?:c(?:0%af|1%9c)|(?:25)?2f)|5c|\/)|e(?:%(?:c(?:0%af|1%9c)|(?:25)?2f)|5c|\/))|\.(?:%(?:c(?:0%af|1%9c)|(?:25)?2f)|5c|\/))|e(?:%2(?:52e(?:%(?:c(?:0%af|1%9c)|(?:25)?2f)|5c|\/)|e(?:%(?:c(?:0%af|1%9c)|(?:25)?2f)|5c|\/))|\.(?:%(?:c(?:0%af|1%9c)|(?:25)?2f)|5c|\/)))|\.(?:%2(?:52e(?:%(?:c(?:0%af|1%9c)|(?:25)?2f)|5c|\/)|e(?:%(?:c(?:0%af|1%9c)|(?:25)?2f)|5c|\/))|\.(?:%(?:c(?:0%af|1%9c)|(?:25)?2f)|5c|\/)))/Rim";
    reference:url,blog.sucuri.net/2014/09/slider-revolution-plugin-critical-vulnerability-being-exploited.html;
    classtype:web-application-attack;
    sid:2020221; rev:6;
    metadata:created_at 2015_01_21, confidence Medium, signature_severity Major, updated_at 2020_09_29;
)