ET MALWARE WildPressure/Milum CnC Activity

Query · suricata

flow:established,to_server;
content:"|0d 0a 0d 0a|pk="; fast_pattern;
http.method;
content:"POST";
http.uri;
content:".php"; endswith;
http.user_agent;
content:"Python-urllib/"; startswith;
http.request_body;
content:"pk="; startswith;
content:"&value="; distance:0;
pcre:"/^pk=[A-Za-z0-9]{8,50}&value=[a-f0-9]{50,500}$/s";
http.header_names;
content:!"|0d 0a|Referer|0d 0a|";
Raw source ET MALWARE WildPressure/Milum CnC Activity · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE WildPressure/Milum CnC Activity";
    flow:established,to_server;
    content:"|0d 0a 0d 0a|pk="; fast_pattern;
    http.method;
    content:"POST";
    http.uri;
    content:".php"; endswith;
    http.user_agent;
    content:"Python-urllib/"; startswith;
    http.request_body;
    content:"pk="; startswith;
    content:"&value="; distance:0;
    pcre:"/^pk=[A-Za-z0-9]{8,50}&value=[a-f0-9]{50,500}$/s";
    http.header_names;
    content:!"|0d 0a|Referer|0d 0a|";
    reference:url,securelist.com/wildpressure-targets-macos/103072/;
    reference:md5,92a11f0dcb973d1a58d45c995993d854;
    classtype:trojan-activity;
    sid:2033316; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_07_12, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_12;
)

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