ET MALWARE APT15/NICKEL KETRUM CnC Activity (POST)

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/index.html?q="; startswith; fast_pattern;
http.content_type;
content:"application/x-www-form-urlencoded"; bsize:33;
http.header_names;
content:!"Referer";
content:"|0d 0a|Connection|0d 0a|Pragma|0d 0a|Content-Type|0d 0a|"; startswith;
Raw source ET MALWARE APT15/NICKEL KETRUM CnC Activity (POST) · 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 APT15/NICKEL KETRUM CnC Activity (POST)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/index.html?q="; startswith; fast_pattern;
    http.content_type;
    content:"application/x-www-form-urlencoded"; bsize:33;
    http.header_names;
    content:!"Referer";
    content:"|0d 0a|Connection|0d 0a|Pragma|0d 0a|Content-Type|0d 0a|"; startswith;
    reference:md5,002267297066965505e5e2ea1db867b4;
    reference:url,www.microsoft.com/security/blog/2021/12/06/nickel-targeting-government-organizations-across-latin-america-and-europe;
    classtype:trojan-activity;
    sid:2034633; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2021_12_08, deployment Perimeter, malware_family APT15, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_12_08;
)

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