Rule History

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed DonotGroup Related Domain (orangeholister .buzz in TLS SNI)"; flow:established,to_server; tls.sni; content:"orangeholister.buzz"; bsize:19; fast_pattern; reference:md5,9946df6c429b83009535dca8d1a5d321; reference:url,twitter.com/Timele9527/status/1597955256423309312; classtype:domain-c2; sid:2041122; rev:2; metadata:attack_target Client_Endpoint, created_at 2022_11_30, deployment Perimeter, malware_family DonotGroup, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_03_29, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)