ET EXPLOIT_KIT Clearfake Set-Cookie Inbound M2

Query · suricata

flow:established,to_client;
http.cookie;
content:"d0ead02777f7e137a4816d479fa38c2b="; fast_pattern;
pcre:"/^[A-Z0-9]{50,300}\x3b/Ri";
target:dest_ip;
Raw source ET EXPLOIT_KIT Clearfake Set-Cookie Inbound M2 · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET EXPLOIT_KIT Clearfake Set-Cookie Inbound M2";
    flow:established,to_client;
    http.cookie;
    content:"d0ead02777f7e137a4816d479fa38c2b="; fast_pattern;
    pcre:"/^[A-Z0-9]{50,300}\x3b/Ri";
    reference:url,rmceoin.github.io/malware-analysis/clearfake/;
    classtype:exploit-kit;
    sid:2069919; rev:1;
    metadata:affected_product Web_Browsers, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2026_06_12, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Minor, tag Exploit_Kit, tag ClearFake, tag compromised_website, updated_at 2026_06_12, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1189, mitre_technique_name Drive_by_Compromise;
    target:dest_ip;
)

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