alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET DELETED Win32/Teerac.A SSL Cert"; flow:established,from_server; content:"|16|"; content:"|0b|"; within:8; content:"|09 00 bf ac 1a b8 3d 7f 11 16|"; within:35; content:"|55 04 03|"; distance:0; content:"|06|debian"; distance:1; within:7; reference:md5,194a931aa49583191eedd19478396ebc; classtype:trojan-activity; sid:2019918; rev:2; metadata:attack_target Client_Endpoint, created_at 2014_12_11, deployment Perimeter, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2019_07_26;)