alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Scieron Possible SSL Cert"; flow:established,to_client; tls.certs; content:"|10 6d 7a 85 10 89 c8 6f bb 41 41 46 e6 96 f2 68 cd|"; tls.cert_subject; content:"CN=RibbonLocalHTTPS"; fast_pattern; reference:url,symantec.com/connect/blogs/scarab-attackers-took-aim-select-russian-targets-2012; classtype:trojan-activity; sid:2020243; rev:3; metadata:attack_target Client_Endpoint, created_at 2015_01_23, deployment Perimeter, confidence Medium, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2024_04_23;)