ET EXPLOIT_KIT Malicious TA2726 TDS Domain in TLS SNI (fetchapiutility .com)

Query · suricata

flow:established,to_server;
tls.sni; bsize:19;
content:"fetchapiutility.com"; fast_pattern;
Raw source ET EXPLOIT_KIT Malicious TA2726 TDS Domain in TLS SNI (fetchapiutility .com) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tls $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET EXPLOIT_KIT Malicious TA2726 TDS Domain in TLS SNI (fetchapiutility .com)";
    flow:established,to_server;
    tls.sni; bsize:19;
    content:"fetchapiutility.com"; fast_pattern;
    classtype:exploit-kit;
    sid:2063360; rev:2;
    metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2025_07_08, deployment Perimeter, performance_impact Low, confidence High, signature_severity Critical, tag Exploit_Kit, tag TDS, tag compromised_website, tag TA2726, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2026_06_08, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1189, mitre_technique_name Drive_by_Compromise;
)

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