ET MALWARE Grandoreiro Banking Trojan DGA Domain in DNS Lookup (freedynamicdns. org)

Query · suricata

dns.query;
content:"iuc1"; fast_pattern; startswith;
pcre:"/^[\da-z]{11}/R";
content:".freedynamicdns.org"; distance:0;
Raw source ET MALWARE Grandoreiro Banking Trojan DGA Domain in DNS Lookup (freedynamicdns. org) · 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 Grandoreiro Banking Trojan DGA Domain in DNS Lookup (freedynamicdns. org)";
    dns.query;
    content:"iuc1"; fast_pattern; startswith;
    pcre:"/^[\da-z]{11}/R";
    content:".freedynamicdns.org"; distance:0;
    reference:url,www.trustwave.com/en-us/resources/blogs/spiderlabs-blog/grandoreiro-banking-malware-resurfaces-for-tax-season/;
    classtype:trojan-activity;
    sid:2036724; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2022_05_27, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_05_27;
)

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