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SID: 2044047 • Source: et/open

Versions (5)

Version DetailsCurrent

Rev: 2Feb 1, 2023, 12:00 PM

ET RETIRED Observed URL Shortener Service Domain (fanlink .to) in TLS SNI

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET RETIRED Observed URL Shortener Service Domain (fanlink .to) in TLS SNI"; flow:established,to_server; tls.sni; content:"fanlink.to"; bsize:10; fast_pattern; classtype:misc-activity; sid:2044047; rev:2; metadata:affected_product Any, attack_target Client_Endpoint, created_at 2023_02_01, deployment Perimeter, former_category INFO, performance_impact Low, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_09_30, reviewed_at 2024_09_30;)

Feb 1, 2023, 12:00 PM

Sep 30, 2024, 12:00 PM

Sep 21, 2024, 3:00 AM

Aug 25, 2025, 9:35 PM

rules/emerging-retired.rules