Rule History

SID: 2057448 • Source: et/open

Versions (5)

Version DetailsCurrent

Rev: 1 • Nov 14, 2024, 12:00 PM

Message:

ET EXPLOIT_KIT Malicious TA2726 TDS Domain in TLS SNI (leatherbook .org)

Rule:

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET EXPLOIT_KIT Malicious TA2726 TDS Domain in TLS SNI (leatherbook .org)"; flow:established,to_server; tls.sni; bsize:15; content:"leatherbook.org"; fast_pattern; classtype:exploit-kit; sid:2057448; rev:1; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2024_11_14, deployment Perimeter, performance_impact Low, confidence High, signature_severity Minor, tag Exploit_Kit, tag TDS, tag compromised_website, tag TA2726, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_01_08, reviewed_at 2025_01_14;)

Created:

Nov 14, 2024, 12:00 PM

Updated:

Jan 8, 2025, 12:00 PM

DB Created:

Dec 3, 2024, 4:00 PM

DB Updated:

Jul 8, 2025, 9:34 PM

Filename:

rules/emerging-exploit_kit.rules