ET MALWARE Trojan.Karagany C&C Response

Query · suricata

flow:from_server,established;
file_data;
content:"work|3a|"; depth:5;
content:"|7c|downexec|20|"; within:20;
content:".jpg|3b 0d 0a|"; distance:0;
Raw source ET MALWARE Trojan.Karagany C&C Response · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET MALWARE Trojan.Karagany C&C Response";
    flow:from_server,established;
    file_data;
    content:"work|3a|"; depth:5;
    content:"|7c|downexec|20|"; within:20;
    content:".jpg|3b 0d 0a|"; distance:0;
    reference:url,www.symantec.com/content/en/us/enterprise/media/security_response/whitepapers/Dragonfly_Threat_Against_Western_Energy_Suppliers.pdf;
    classtype:command-and-control;
    sid:2018629; rev:3;
    metadata:created_at 2014_07_02, signature_severity Major, updated_at 2020_08_19;
)

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