ET INFO ATF file in HTTP Flowbit Set

Query · suricata

flow:from_server,established;
file_data;
content:"|41 54 46|"; within:3;
flowbits:set,ET.atf.in.http;
flowbits:noalert;

Rule dependencies

Feeds into

  • Nothing indexed reads ET.atf.in.http.
Raw source ET INFO ATF file in HTTP Flowbit Set · 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 INFO ATF file in HTTP Flowbit Set";
    flow:from_server,established;
    file_data;
    content:"|41 54 46|"; within:3;
    flowbits:set,ET.atf.in.http;
    flowbits:noalert;
    classtype:not-suspicious;
    sid:2023714; rev:2;
    metadata:attack_target Client_Endpoint, created_at 2017_01_10, deployment Perimeter, confidence High, signature_severity Informational, updated_at 2019_07_26;
)

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.