Rule History

SID: 2055582 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 2 • Aug 28, 2024, 12:00 PM

Message:

ET EXPLOIT_KIT ClearFake Domain in TLS SNI (biginfo .xyz)

Rule:

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET EXPLOIT_KIT ClearFake Domain in TLS SNI (biginfo .xyz)"; flow:established,to_server; tls.sni; bsize:11; content:"biginfo.xyz"; fast_pattern; reference:url,rmceoin.github.io/malware-analysis/clearfake/; classtype:exploit-kit; sid:2055582; rev:2; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2024_08_28, deployment Perimeter, deprecation_reason Relevance, performance_impact Low, confidence High, signature_severity Minor, tag Exploit_Kit, tag ClearFake, tag compromised_website, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_10_29, reviewed_at 2024_10_29;)

Created:

Aug 28, 2024, 12:00 PM

Updated:

Oct 29, 2024, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Jul 28, 2025, 9:34 PM

Filename:

rules/emerging-exploit_kit.rules