ET MALWARE Win32/Malgent!MSR Dropper Requesting Payload

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/api"; endswith;
http.request_body;
content:"4F440D71527A05240C72440216527C015109"; startswith; fast_pattern;
http.header_names;
content:!"Referer";
Raw source ET MALWARE Win32/Malgent!MSR Dropper Requesting Payload · 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/Malgent!MSR Dropper Requesting Payload";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/api"; endswith;
    http.request_body;
    content:"4F440D71527A05240C72440216527C015109"; startswith; fast_pattern;
    http.header_names;
    content:!"Referer";
    reference:md5,4c1e57a0388a703307319d17ae5e9039;
    classtype:trojan-activity;
    sid:2033746; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2021_08_19, deployment Perimeter, malware_family Win32_Malgent_MSR, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_08_19;
)

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