ET HUNTING PNG in HTTP POST (Outbound)

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.request_body;
content:"|89 50 4E 47 0D 0A 1A 0A|";
content:"IHDR"; distance:0;
Raw source ET HUNTING PNG in HTTP POST (Outbound) · 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 $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET HUNTING PNG in HTTP POST (Outbound)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.request_body;
    content:"|89 50 4E 47 0D 0A 1A 0A|";
    content:"IHDR"; distance:0;
    reference:md5,71d5aea26377d283b4216bdbb6558ad0;
    classtype:trojan-activity;
    sid:2039097; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2022_10_05, deployment Perimeter, deployment SSLDecrypt, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_10_05;
)

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