ET MALWARE 404 Response with an EXE Attached - Likely Malware Drop

Query · suricata

flow:established,from_server;
http.stat_code;
content:"404";
http.stat_msg;
content:"Not Found";
file.data;
content:"MZ"; within:2;
byte_jump:4,58,relative,little;
content:"PE|00 00|"; fast_pattern; distance:-64; within:4;
Raw source ET MALWARE 404 Response with an EXE Attached - Likely Malware Drop · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET MALWARE 404 Response with an EXE Attached - Likely Malware Drop";
    flow:established,from_server;
    http.stat_code;
    content:"404";
    http.stat_msg;
    content:"Not Found";
    file.data;
    content:"MZ"; within:2;
    byte_jump:4,58,relative,little;
    content:"PE|00 00|"; fast_pattern; distance:-64; within:4;
    classtype:attempted-admin;
    sid:2009028; rev:13;
    metadata:created_at 2010_07_30, confidence Medium, signature_severity Major, updated_at 2020_09_14;
)

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