alert tcp $EXTERNAL_NET 443 -> $HOME_NET any (msg:"ET MALWARE SSL Cert Used In Unknown Exploit Kit"; flow:established,from_server; content:"|00 c8 b9 67 4e 25 75 e9 92|"; content:"|55 04 06 13 02 4e 4c|"; distance:0; content:"|55 04 07 0c 01 20|"; distance:0; content:"|55 04 03 0c 01 20|"; distance:0; classtype:exploit-kit; sid:2015837; rev:2; metadata:attack_target Client_Endpoint, created_at 2012_10_24, deployment Perimeter, confidence Medium, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2019_07_26;)