ET MALWARE EXE Download When Server Claims To Send Audio File - Must Be Win32

Query · suricata

flow:established,to_client;
http.content_type;
content:"audio|2F|"; startswith;
file.data;
content:"MZ"; depth:2;
byte_jump:4,58,relative,little;
content:"PE|00 00|"; fast_pattern; distance:-64; within:4;
Raw source ET MALWARE EXE Download When Server Claims To Send Audio File - Must Be Win32 · 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 EXE Download When Server Claims To Send Audio File - Must Be Win32";
    flow:established,to_client;
    http.content_type;
    content:"audio|2F|"; startswith;
    file.data;
    content:"MZ"; depth:2;
    byte_jump:4,58,relative,little;
    content:"PE|00 00|"; fast_pattern; distance:-64; within:4;
    classtype:trojan-activity;
    sid:2013441; rev:11;
    metadata:created_at 2011_08_22, signature_severity Major, updated_at 2020_10_28;
)

Detection rules belong to the projects that publish them and remain under their own licenses. This site indexes and links to them; it claims no rights in them.