alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET ACTIVEX Adobe browser document ActiveX DoS Function call Attempt"; flow:from_server,established; content:"ActiveXObject"; nocase; content:"AcroPDFLib.AcroPDF"; distance:0; nocase; content:"src"; nocase; reference:url,www.packetstormsecurity.nl/0911-exploits/acropdf-dos.txt; classtype:attempted-user; sid:2010705; rev:4; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2010_07_30, deployment Perimeter, confidence Medium, signature_severity Major, tag ActiveX, updated_at 2019_09_27;)