ET MALWARE Kimsuky APT Related Activity (GET)

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:".php?query=1"; fast_pattern; endswith;
http.header_names;
content:!"Referer";
content:"|0d 0a|Accept|0d 0a|Accept-Language|0d 0a|Accept-Encoding|0d 0a|"; startswith;
Raw source ET MALWARE Kimsuky APT Related Activity (GET) · Suricata
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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 APT Related Activity (GET)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:".php?query=1"; fast_pattern; endswith;
    http.header_names;
    content:!"Referer";
    content:"|0d 0a|Accept|0d 0a|Accept-Language|0d 0a|Accept-Encoding|0d 0a|"; startswith;
    reference:md5,52f79913a72c1afe1cd6b22445aab3e5;
    reference:url,twitter.com/ShadowChasing1/status/1493902034453479431;
    classtype:trojan-activity;
    sid:2035206; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2022_02_16, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_02_16;
)

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