Rule History

SID: 2047804 • Source: et/open

Versions (5)

Version DetailsCurrent

Rev: 1 • Aug 28, 2023, 12:00 PM

Message:

ET EXPLOIT_KIT Keitaro Set-Cookie Inbound to ClearFake (71eb8)

Rule:

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT_KIT Keitaro Set-Cookie Inbound to ClearFake (71eb8)"; flow:established,to_client; http.cookie; content:"71eb8=eyJ0e"; fast_pattern; pcre:"/^[A-Z0-9_\-.]{20,300}\x3b/Ri"; reference:url,rmceoin.github.io/malware-analysis/clearfake/; classtype:exploit-kit; sid:2047804; rev:1; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2023_08_28, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Minor, tag Exploit_Kit, tag TDS, tag ClearFake, tag compromised_website, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_08_28, reviewed_at 2024_06_17;)

Created:

Aug 28, 2023, 12:00 PM

Updated:

Aug 28, 2023, 12:00 PM

DB Created:

Aug 28, 2023, 10:00 PM

DB Updated:

Aug 19, 2025, 9:35 PM

Filename:

rules/emerging-exploit_kit.rules