alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET WEB_CLIENT PDF With eval Function - Possibly Hostile"; flow:established,to_client; content:"PDF-"; depth:300; content:"eval|28|"; nocase; distance:0; reference:url,www.w3schools.com/jsref/jsref_eval.asp; classtype:bad-unknown; sid:2011506; rev:3; metadata:affected_product Web_Browsers, affected_product Web_Browser_Plugins, attack_target Client_Endpoint, created_at 2010_09_27, deployment Perimeter, signature_severity Major, tag Web_Client_Attacks, updated_at 2019_07_26;)