Versions (2)
Version DetailsCurrent
Rev: 1 • Apr 29, 2026, 12:00 PMET MALWARE Observed Common Payload Delivery Domain (bluebikinis .cl in TLS SNI)
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed Common Payload Delivery Domain (bluebikinis .cl in TLS SNI)"; flow:established,to_server; tls.sni; dotprefix; content:".bluebikinis.cl"; endswith; fast_pattern; classtype:trojan-activity; sid:2069078; rev:1; metadata:attack_target Client_Endpoint, created_at 2026_04_29, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2026_04_29;)
Apr 29, 2026, 12:00 PM
Apr 29, 2026, 12:00 PM
Apr 29, 2026, 9:34 PM
May 6, 2026, 9:34 PM
rules/emerging-malware.rules