Versions (4)
Version DetailsCurrent
Rev: 1 • Dec 19, 2023, 12:00 PMET MALWARE Observed CloudAtlas APT Related Domain (network-list .com in TLS SNI)
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed CloudAtlas APT Related Domain (network-list .com in TLS SNI)"; flow:established,to_server; tls.sni; bsize:16; content:"network-list.com"; fast_pattern; reference:md5,7bdb049cb0cc3623e4fa1d8e2574f1ce; reference:md5,2e950fe4bd76088f89433a6f2146cb67; reference:url,www.facct.ru/blog/cloud-atlas; classtype:domain-c2; sid:2049732; rev:1; metadata:created_at 2023_12_19, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_12_19, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol; target:src_ip;)
Dec 19, 2023, 12:00 PM
Dec 19, 2023, 12:00 PM
Sep 21, 2024, 3:00 AM
Aug 18, 2025, 8:35 PM
rules/emerging-malware.rules