Rule History

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed Glupteba CnC Domain (theupdatetime .org in TLS SNI)"; flow:established,to_server; tls.sni; dotprefix; content:".theupdatetime.org"; endswith; fast_pattern; reference:md5,e29c083b993670853ad8cc452b1cb4d1; classtype:domain-c2; sid:2053347; rev:1; metadata:created_at 2024_06_10, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_06_10, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)