Rule History

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Observed URL Shortening Service Domain (s59 .site) in TLS SNI"; flow:established,to_server; tls.sni; content:"s59.site"; fast_pattern; classtype:misc-activity; sid:2035871; rev:2; metadata:attack_target Client_Endpoint, created_at 2022_04_07, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, updated_at 2023_04_28;)