Versions (4)
Version DetailsCurrent
Rev: 2 • Nov 28, 2022, 12:00 PMET INFO Observed URL Shortening Service Domain (t .ly in TLS SNI)
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Observed URL Shortening Service Domain (t .ly in TLS SNI)"; flow:established,to_server; tls.sni; content:"t.ly"; bsize:4; fast_pattern; classtype:misc-activity; sid:2040136; rev:2; metadata:attack_target Client_Endpoint, created_at 2022_11_28, deployment Perimeter, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_04_28;)
Nov 28, 2022, 12:00 PM
Apr 28, 2023, 12:00 PM
Sep 21, 2024, 3:00 AM
Aug 27, 2025, 9:35 PM
rules/emerging-info.rules