alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET WEB_CLIENT BeEF Cookie Outbound"; flow:to_server,established; content:"Cookie|3a 20|BEEFSESSION="; fast_pattern; threshold:type limit, track by_src, seconds 300, count 1; reference:url,beefproject.com; classtype:attempted-user; sid:2018088; rev:3; metadata:affected_product Web_Browsers, affected_product Web_Browser_Plugins, attack_target Client_Endpoint, created_at 2014_02_07, deployment Perimeter, signature_severity Major, tag Web_Client_Attacks, updated_at 2019_10_08;)