Versions (2)
Version DetailsCurrent
Rev: 1 • Nov 11, 2024, 12:00 PMET INFO Observed Commonly Actor Abused Email Marketing Domain (fdske .com in TLS SNI)
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Observed Commonly Actor Abused Email Marketing Domain (fdske .com in TLS SNI)"; flow:established,to_server; tls.sni; dotprefix; content:".fdske.com"; endswith; fast_pattern; classtype:misc-activity; sid:2057379; rev:1; metadata:attack_target Client_Endpoint, created_at 2024_11_11, deployment Perimeter, confidence High, signature_severity Informational, tag TA_Abused_Service, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_11_11;)
Nov 11, 2024, 12:00 PM
Nov 11, 2024, 12:00 PM
Dec 3, 2024, 4:00 PM
Jul 8, 2025, 9:34 PM
rules/emerging-info.rules