ET WEB_SERVER WebShell - Generic - c99shell based header

Query · suricata

flow:established,to_client;
file_data;
content:"<b>Software|3a|";
content:"<b>uname -a|3a|";
content:"<b>uid=";
Raw source ET WEB_SERVER WebShell - Generic - c99shell based header · 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 $HTTP_SERVERS any -> $EXTERNAL_NET any (
    msg:"ET WEB_SERVER WebShell - Generic - c99shell based header";
    flow:established,to_client;
    file_data;
    content:"<b>Software|3a|";
    content:"<b>uname -a|3a|";
    content:"<b>uid=";
    classtype:bad-unknown;
    sid:2016245; rev:3;
    metadata:created_at 2013_01_22, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;
)

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