ET MALWARE BernhardPOS Possible Data Exfiltration via DNS Lookup (29a.de)

Query · suricata

dns.query;
content:".29a.de"; nocase; fast_pattern; endswith;
pcre:"/^.(?=[a-z0-9+/]*?[A-Z])(?=[A-Z0-9+/]*?[a-z])(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4})\.29a\.de$/";
Raw source ET MALWARE BernhardPOS Possible Data Exfiltration via DNS Lookup (29a.de) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert dns $HOME_NET any -> any any (
    msg:"ET MALWARE BernhardPOS Possible Data Exfiltration via DNS Lookup (29a.de)";
    dns.query;
    content:".29a.de"; nocase; fast_pattern; endswith;
    pcre:"/^.(?=[a-z0-9+/]*?[A-Z])(?=[A-Z0-9+/]*?[a-z])(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4})\.29a\.de$/";
    reference:url,morphick.com/blog/2015/7/14/bernhardpos-new-pos-malware-discovered-by-morphick;
    classtype:trojan-activity;
    sid:2021416; rev:5;
    metadata:created_at 2015_07_15, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_17;
)

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