ET WEB_SERVER SLIGHTPULSE WebShell Access Inbound M3

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/licenseserverproto.cgi";
content:"serverid=";
content:"csJ1TA45JzB0WJrjA5X8dpVbXcrDMVfa"; distance:0; within:35; fast_pattern;
Raw source ET WEB_SERVER SLIGHTPULSE WebShell Access Inbound M3 · 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 any any -> [$HOME_NET,$HTTP_SERVERS] any (
    msg:"ET WEB_SERVER SLIGHTPULSE WebShell Access Inbound M3";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/licenseserverproto.cgi";
    content:"serverid=";
    content:"csJ1TA45JzB0WJrjA5X8dpVbXcrDMVfa"; distance:0; within:35; fast_pattern;
    classtype:attempted-admin;
    sid:2033790; rev:1;
    metadata:created_at 2021_08_25, deployment SSLDecrypt, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_08_25;
)

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