ET INFO Executable Retrieved With Minimal HTTP Headers - Potential Second Stage Download

Query · suricata

flowbits:isset,min.gethttp;
flow:established,to_client;
file_data;
content:"MZ"; within:2;
content:"PE|00 00|"; distance:0;

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 INFO Executable Retrieved With Minimal HTTP Headers - Potential Second Stage Download · Suricata
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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 INFO Executable Retrieved With Minimal HTTP Headers - Potential Second Stage Download";
    flowbits:isset,min.gethttp;
    flow:established,to_client;
    file_data;
    content:"MZ"; within:2;
    content:"PE|00 00|"; distance:0;
    classtype:bad-unknown;
    sid:2016538; rev:3;
    metadata:created_at 2013_03_06, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;
)

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