alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Observed Malicious SSL Cert (AZORult CnC) 2019-11-18"; flow:established,to_client; tls.cert_subject; bsize:14; content:"CN=solvents.ru"; fast_pattern; tls.cert_issuer; bsize:79; content:"C=US, ST=TX, L=Houston, O=cPanel, Inc., CN=cPanel, Inc. Certification Authority"; reference:md5,e54cbf645b0840c0dd1f212f42cd47fd; classtype:domain-c2; sid:2029001; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2019_11_18, deployment Perimeter, malware_family AZORult, performance_impact Low, confidence High, signature_severity Major, tag SSL_Malicious_Cert, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_24, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)