alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET DELETED Blackhole Landing try catch try catch math eval Aug 27 2012"; flow:established,from_server; file_data; content:"try{"; content:"|3b|}catch("; within:25; content:"){try{"; fast_pattern; within:15; content:"}catch("; within:35; content:"eval("; distance:0; classtype:bad-unknown; sid:2015654; rev:5; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2012_08_27, deployment Perimeter, malware_family Blackhole, signature_severity Critical, tag Blackhole, tag Exploit_Kit, updated_at 2019_07_26;)