ET MALWARE Win32/Filecoder.STOP Variant Request for Public Key

Query · suricata

flow:established,to_server;
threshold:type limit, track by_dst, seconds 60, count 1;
http.method;
content:"GET";
http.uri;
content:"/get.php?pid="; fast_pattern;
content:"&first=true"; distance:32; within:11; endswith;
http.user_agent;
content:"Microsoft Internet Explorer"; depth:27; endswith;
http.header_names;
content:"|0d 0a|User-Agent|0d 0a|Host|0d 0a 0d 0a|";
Raw source ET MALWARE Win32/Filecoder.STOP Variant Request for Public Key · 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 Win32/Filecoder.STOP Variant Request for Public Key";
    flow:established,to_server;
    threshold:type limit, track by_dst, seconds 60, count 1;
    http.method;
    content:"GET";
    http.uri;
    content:"/get.php?pid="; fast_pattern;
    content:"&first=true"; distance:32; within:11; endswith;
    http.user_agent;
    content:"Microsoft Internet Explorer"; depth:27; endswith;
    http.header_names;
    content:"|0d 0a|User-Agent|0d 0a|Host|0d 0a 0d 0a|";
    reference:md5,13f04ff944fa65eddd3e911740837a8a;
    reference:md5,c0672f0359afba1c24ab0f90f568bdc0;
    classtype:trojan-activity;
    sid:2036334; rev:3;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_09_12, deployment Perimeter, malware_family Win32_Filecoder_STOP, performance_impact Low, confidence High, signature_severity Major, updated_at 2020_09_17;
)

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