ET INFO Embedded Executable File in PDF - This Program Cannot Be Run in DOS Mode

Query · suricata

flow:established,to_client;
flowbits:isset,ET.pdf.in.http;
file_data;
content:"This program cannot be run in DOS mode"; nocase;

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 Embedded Executable File in PDF - This Program Cannot Be Run in DOS Mode · 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 Embedded Executable File in PDF - This Program Cannot Be Run in DOS Mode";
    flow:established,to_client;
    flowbits:isset,ET.pdf.in.http;
    file_data;
    content:"This program cannot be run in DOS mode"; nocase;
    classtype:bad-unknown;
    sid:2011865; rev:7;
    metadata:attack_target Client_Endpoint, created_at 2010_10_29, deployment Perimeter, confidence High, signature_severity Major, updated_at 2019_09_27;
)

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