alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET DELETED Napolar / Shifu SSL Cert Oct 9 2014"; flow:established,from_server; content:"|55 04 03|"; content:"|19|secure.barrentomedear.com"; distance:1; within:26; reference:md5,958804a1191cb281a3a967de17763cf4; classtype:trojan-activity; sid:2019376; rev:4; metadata:attack_target Client_Endpoint, created_at 2014_10_09, deployment Perimeter, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2019_09_10;)