alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET TROJAN Observed Malicious SSL Cert (MageCart?)"; flow:established,from_server; tls_cert_serial; content:"00:B3:4B:42:19:50:7A:3B:55:78:3D:6D:FD:12:54:C8:88"; metadata: former_category MALWARE; classtype:trojan-activity; sid:2029102; rev:1; metadata:deployment Perimeter, signature_severity Major, created_at 2019_12_09, malware_family MageCart?, performance_impact Low, updated_at 2019_12_09;)

Added 2019-12-09 19:11:58 UTC