alert dns $HOME_NET any -> any any (msg:"ET MALWARE Gift Cardshark CnC Domain in DNS Lookup"; dns.query; content:"cert-ssl.com"; nocase; endswith; classtype:command-and-control; sid:2027570; rev:3; metadata:affected_product Any, attack_target Client_Endpoint, created_at 2019_06_27, deployment Perimeter, performance_impact Low, confidence High, signature_severity Minor, updated_at 2020_09_17;)