alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE SuperFish Possible SSL Cert CnC Traffic"; flow:established,to_client; tls.cert_subject; content:"O=Superfish Inc."; content:"CN=*.best-deals-products.com"; reference:url,blog.erratasec.com/2015/02/extracting-superfish-certificate.html; reference:url,myce.com/news/lenovo-laptops-come-with-preinstalled-advertisement-injecting-adware-74290/; classtype:command-and-control; sid:2020492; rev:3; metadata:attack_target Client_Endpoint, created_at 2015_02_20, deployment Perimeter, confidence Medium, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2024_04_23;)