ET EXPLOIT_KIT WinHttpRequest Downloading EXE Non-Port 80 (Likely Exploit Kit)

Query · suricata

flow:established,from_server;
flowbits:isset,et.WinHttpRequest;
file_data;
content:"MZ"; within:2;
byte_jump:4,58,relative,little;
content:"PE|00 00|"; distance:-64; within:4;

Rule dependencies

⚠ Higher-order rule. It fires on other rules' alerts, not on raw events, so it cannot fire on its own. Deploy the rules it depends on too.

Depends on

Raw source ET EXPLOIT_KIT WinHttpRequest Downloading EXE Non-Port 80 (Likely Exploit Kit) · 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 !80 -> $HOME_NET any (
    msg:"ET EXPLOIT_KIT WinHttpRequest Downloading EXE Non-Port 80 (Likely Exploit Kit)";
    flow:established,from_server;
    flowbits:isset,et.WinHttpRequest;
    file_data;
    content:"MZ"; within:2;
    byte_jump:4,58,relative,little;
    content:"PE|00 00|"; distance:-64; within:4;
    classtype:exploit-kit;
    sid:2019823; rev:7;
    metadata:created_at 2014_12_01, confidence Medium, signature_severity Major, updated_at 2019_07_26;
)

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