ET MALWARE Win32/Rarog Stealer CnC Keep-Alive

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/check.php"; endswith; fast_pattern;
http.request_body;
content:"m="; depth:2;
pcre:"/^m=[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$/si";
http.header_names;
content:!"Referer";
Raw source ET MALWARE Win32/Rarog Stealer CnC Keep-Alive · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE Win32/Rarog Stealer CnC Keep-Alive";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/check.php"; endswith; fast_pattern;
    http.request_body;
    content:"m="; depth:2;
    pcre:"/^m=[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$/si";
    http.header_names;
    content:!"Referer";
    reference:md5,b38a63aea75bcf06fed11067cc75cc7e;
    classtype:command-and-control;
    sid:2025580; rev:4;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_05_16, deployment Perimeter, malware_family Win32_Rarog, performance_impact Moderate, confidence High, signature_severity Major, updated_at 2020_09_16;
)

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