Versions (2)
Version DetailsCurrent
Rev: 2 • Mar 21, 2023, 12:00 PMET INFO Free File Hosting Domain (sendbig .com) in TLS SNI
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Free File Hosting Domain (sendbig .com) in TLS SNI"; flow:established,to_server; tls.sni; dotprefix; content:".sendbig.com"; endswith; fast_pattern; classtype:misc-activity; sid:2044721; rev:2; metadata:affected_product Any, attack_target Client_Endpoint, created_at 2023_03_21, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, updated_at 2023_05_09;)
Mar 21, 2023, 12:00 PM
May 9, 2023, 12:00 PM
Sep 21, 2024, 3:00 AM
May 30, 2025, 12:04 AM
rules/emerging-info.rules