Rule History

SID: 2050982 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 2 • Feb 20, 2024, 12:00 PM

Message:

ET EXPLOIT_KIT Fake Browser Update Domain in TLS SNI (s14-nextjs .net)

Rule:

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET EXPLOIT_KIT Fake Browser Update Domain in TLS SNI (s14-nextjs .net)"; flow:established,to_server; tls.sni; bsize:14; content:"s14-nextjs.net"; fast_pattern; reference:url,infosec.exchange/@GustyDusty/111176105257032772; classtype:exploit-kit; sid:2050982; rev:2; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2024_02_20, deployment Perimeter, deprecation_reason Relevance, performance_impact Low, confidence High, signature_severity Minor, tag Exploit_Kit, tag compromised_website, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_25, reviewed_at 2024_04_25;)

Created:

Feb 20, 2024, 12:00 PM

Updated:

Apr 25, 2024, 12:00 PM

DB Created:

Feb 20, 2024, 10:00 PM

DB Updated:

Aug 14, 2025, 9:34 PM

Filename:

rules/emerging-exploit_kit.rules