ET EXPLOIT_KIT Coruna Stage 3 Implant Activity M1

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/details/helion.js"; fast_pattern; endswith;
http.host; bsize:19;
content:".xyz"; endswith;
target:dest_ip;
Raw source ET EXPLOIT_KIT Coruna Stage 3 Implant Activity M1 · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET EXPLOIT_KIT Coruna Stage 3 Implant Activity M1";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/details/helion.js"; fast_pattern; endswith;
    http.host; bsize:19;
    content:".xyz"; endswith;
    reference:url,iverify.io/blog/coruna-inside-the-nation-state-grade-ios-exploit-kit-we-ve-been-tracking;
    reference:url,cloud.google.com/blog/topics/threat-intelligence/coruna-powerful-ios-exploit-kit;
    classtype:exploit-kit;
    sid:2068161; rev:1;
    metadata:affected_product iOS, attack_target Client_Endpoint, created_at 2026_03_11, deployment Perimeter, confidence Medium, signature_severity Major, tag iOS, tag Exploit, tag Coruna, updated_at 2026_03_11, 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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