ET MALWARE Lyceum Group Activity (DNS)

Query · suricata

threshold:type both, track by_src, count 3, seconds 5;
dns.query;
pcre:"/^[a-z0-9]{32}/";
content:".defenderlive.com"; endswith;
Raw source ET MALWARE Lyceum Group Activity (DNS) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert dns $HOME_NET any -> any any (
    msg:"ET MALWARE Lyceum Group Activity (DNS)";
    threshold:type both, track by_src, count 3, seconds 5;
    dns.query;
    pcre:"/^[a-z0-9]{32}/";
    content:".defenderlive.com"; endswith;
    reference:md5,e2919dea773eb0796e46e126dbce17b1;
    reference:url,securelist.com/lyceum-group-reborn/104586/;
    classtype:trojan-activity;
    sid:2033085; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2021_06_03, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_06_03;
)

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