alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET DELETED Blackhole Landing with prototype catch"; flow:established,from_server; content:"if(window.document)try{new"; content:".prototype}catch("; distance:0; fast_pattern; classtype:bad-unknown; sid:2014369; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2012_03_13, deployment Perimeter, malware_family Blackhole, signature_severity Critical, tag Blackhole, tag Exploit_Kit, updated_at 2019_07_26;)