alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET WEB_CLIENT Possible BeEF Module in use"; flow:established,from_server; file_data; content:"beef.websocket.send"; pcre:"/^\s*?\(/Rs"; content:"beef.encode.base64.encode"; pcre:"/^\s*?\(/Rs"; classtype:attempted-user; sid:2024415; rev:2; metadata:affected_product Windows_Client_Apps, attack_target Client_Endpoint, created_at 2017_06_19, deployment Perimeter, performance_impact Moderate, confidence Medium, signature_severity Major, updated_at 2019_07_26;)