ET MALWARE Kimsuky Related Host Data Exfil

Query · suricata

flow:established,to_server;
http.uri.raw;
content:"&p1=";
pcre:"/^[a-z0-9]{12,14}(?:&p2=(?:[a-z0-9]([\._-])?){1,24}(?:_DROPPER)?)$/Ri";
content:"//?m="; fast_pattern; startswith;
Raw source ET MALWARE Kimsuky Related Host Data Exfil · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Kimsuky Related Host Data Exfil";
    flow:established,to_server;
    http.uri.raw;
    content:"&p1=";
    pcre:"/^[a-z0-9]{12,14}(?:&p2=(?:[a-z0-9]([\._-])?){1,24}(?:_DROPPER)?)$/Ri";
    content:"//?m="; fast_pattern; startswith;
    reference:url,blog.yoroi.company/research/the-north-korean-kimsuky-apt-keeps-threatening-south-korea-evolving-its-ttps/;
    classtype:trojan-activity;
    sid:2029576; rev:3;
    metadata:attack_target Client_Endpoint, created_at 2020_03_05, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_04_22;
)

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