alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET DELETED Blackhole Landing for prototype catch substr"; flow:established,from_server; content:"try{prototype|3b|}catch("; fast_pattern; content:"substr"; distance:0; classtype:trojan-activity; sid:2014661; rev:4; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2012_05_01, deployment Perimeter, malware_family Blackhole, signature_severity Critical, tag Blackhole, tag Exploit_Kit, updated_at 2019_07_26;)