alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET CURRENT_EVENTS Possible J7u21 click2play bypass"; flow:established,to_client; file_data; content:"<jfx|3a|"; nocase; content:"preloader-class"; nocase; content:"<jnlp"; nocase; classtype:attempted-user; sid:2017509; rev:2; metadata:created_at 2013_09_24, confidence Medium, signature_severity Minor, updated_at 2019_07_26;)