ET MALWARE Malicious SockRacket/KANDYKORN SSL Certificate Detected

Query · suricata

flow:established,to_client;
tls.cert_subject;
content:"bitscrunnch.linkpc.net"; fast_pattern;
pcre:"/CN=(?:[^\r\n]+?\.)?bitscrunnch\.linkpc\.net(?!\.)/";
Raw source ET MALWARE Malicious SockRacket/KANDYKORN SSL Certificate Detected · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tls $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET MALWARE Malicious SockRacket/KANDYKORN SSL Certificate Detected";
    flow:established,to_client;
    tls.cert_subject;
    content:"bitscrunnch.linkpc.net"; fast_pattern;
    pcre:"/CN=(?:[^\r\n]+?\.)?bitscrunnch\.linkpc\.net(?!\.)/";
    reference:url,www.elastic.co/security-labs/elastic-catches-dprk-passing-out-kandykorn;
    classtype:trojan-activity;
    sid:2049017; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2023_11_01, deployment Perimeter, confidence High, signature_severity Major, tag SSL_Malicious_Cert, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_11_01, reviewed_at 2023_12_13;
)

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