ET MALWARE Win32/Matanbuchus Loader Activity (POST)

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:".php"; endswith;
http.request_body;
content:"RequestModuleVersionInformationORupdate=ey"; startswith; fast_pattern;
http.header_names;
content:!"Referer";
http.user_agent;
content:!"Mozilla";
Raw source ET MALWARE Win32/Matanbuchus Loader 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 Win32/Matanbuchus Loader Activity (POST)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:".php"; endswith;
    http.request_body;
    content:"RequestModuleVersionInformationORupdate=ey"; startswith; fast_pattern;
    http.header_names;
    content:!"Referer";
    http.user_agent;
    content:!"Mozilla";
    reference:md5,ef3dbbbd570955fa9f5562409e9566a0;
    reference:url,www.cyberark.com/resources/threat-research-blog/inside-matanbuchus-a-quirky-loader;
    classtype:trojan-activity;
    sid:2038617; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2022_08_25, deployment Perimeter, malware_family Win32_Matanbuchus, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_08_25;
)

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