ET POLICY Executable and linking format (ELF) file download

Query · suricata

flow:established;
content:"|7F|ELF"; fast_pattern;
content:"|00 00 00 00 00 00 00 00|"; distance:3;
flowbits:set,ET.ELFDownload;

Rule dependencies

Feeds into

  • 2 rules read ET.ELFDownload · view all
Raw source ET POLICY Executable and linking format (ELF) file 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 tcp $EXTERNAL_NET !$HTTP_PORTS -> $HOME_NET any (
    msg:"ET POLICY Executable and linking format (ELF) file download";
    flow:established;
    content:"|7F|ELF"; fast_pattern;
    content:"|00 00 00 00 00 00 00 00|"; distance:3;
    flowbits:set,ET.ELFDownload;
    reference:url,www.itee.uq.edu.au/~cristina/students/david/honoursThesis96/bff.htm;
    classtype:policy-violation;
    sid:2000418; rev:17;
    metadata:created_at 2010_07_30, confidence High, signature_severity Informational, updated_at 2023_04_12;
)

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