Rule History

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed Elysium Stealer Domain in TLS SNI (download-serv-234116 .xyz)"; flow:established,to_server; tls.sni; content:"download-serv-234116.xyz"; bsize:24; fast_pattern; reference:url,twitter.com/hatching_io/status/1437431372537282566; reference:md5,157105990ae7e4673035fd9224b793c9; classtype:domain-c2; sid:2034121; rev:1; metadata:created_at 2021_10_05, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_10_05, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)