ET MALWARE KPOT Stealer Initial CnC Activity M4

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/util.php?id="; fast_pattern;
pcre:"/^[A-F0-9]+$/Rsi";
http.content_type;
content:"application/x-www-form-urlencoded"; bsize:33;
http.header_names;
content:!"Referer";
Raw source ET MALWARE KPOT Stealer Initial CnC Activity M4 · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE KPOT Stealer Initial CnC Activity M4";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/util.php?id="; fast_pattern;
    pcre:"/^[A-F0-9]+$/Rsi";
    http.content_type;
    content:"application/x-www-form-urlencoded"; bsize:33;
    http.header_names;
    content:!"Referer";
    reference:md5,5aa703c714e3fa012289bb521687cb0f;
    classtype:command-and-control;
    sid:2029837; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_04_08, deployment Perimeter, malware_family KPOT_Stealer, confidence High, signature_severity Major, updated_at 2020_11_16;
)

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