ET WEB_SERVER Generic PHP Webshell Activity

Query · suricata

flow:established,to_client;
file.data;
content:"/home/aravalcl/public_html/"; fast_pattern;
content:"ob_start|28 29|";
content:">Command</a>>";
content:"Software|3a|";
target:src_ip;
Raw source ET WEB_SERVER Generic PHP Webshell Activity · Suricata
Esc
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 WEB_SERVER Generic PHP Webshell Activity";
    flow:established,to_client;
    file.data;
    content:"/home/aravalcl/public_html/"; fast_pattern;
    content:"ob_start|28 29|";
    content:">Command</a>>";
    content:"Software|3a|";
    reference:md5,f899d6cbe1be6395a0fa2a802b8eb579;
    classtype:trojan-activity;
    sid:2048557; rev:1;
    metadata:attack_target Web_Server, created_at 2023_10_13, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_10_13, reviewed_at 2023_10_13;
    target:src_ip;
)

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