alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET WEB_CLIENT PDF With Embedded Flash Possible Remote Code Execution Attempt"; flow:established,to_client; content:"PDF-"; depth:300; content:"/SubType"; distance:0; content:"flash"; nocase; within:100; reference:url,feliam.wordpress.com/2010/02/11/flash-on-a-pdf-with-minipdf-py/; reference:cve,2010-1297; classtype:bad-unknown; sid:2011505; rev:4; metadata:affected_product Web_Browsers, affected_product Web_Browser_Plugins, attack_target Client_Endpoint, created_at 2010_09_27, cve CVE_2010_1297, deployment Perimeter, confidence Medium, signature_severity Major, tag Web_Client_Attacks, updated_at 2019_07_26, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;)