Rule History

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed Malicious SSL Cert (AZORult CnC Server) in SNI 2019-09-27"; flow:established,to_server; tls.sni; bsize:11; content:"techxim.com"; reference:md5,5c4e395fc545b5e0c03f960a4145f4ea; classtype:domain-c2; sid:2028659; rev:2; metadata:attack_target Client_and_Server, created_at 2019_10_07, 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 2019_10_07, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)