ET WEB_SERVER WSO WebShell Activity POST structure 2

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.request_body;
content:" name=|22|c|22|";
content:"name=|22|p1|22|"; fast_pattern;
pcre:"/name=(?P<q>[\x22\x27])a(?P=q)[^\r\n]*\r\n[\r\n\s]+(?:S(?:e(?:lfRemove|cInfo)|tringTools|afeMode|ql)|(?:Bruteforc|Consol)e|FilesMan|Network|Logout|Php)/i";
Raw source ET WEB_SERVER WSO WebShell Activity POST structure 2 · 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 $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET WEB_SERVER WSO WebShell Activity POST structure 2";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.request_body;
    content:" name=|22|c|22|";
    content:"name=|22|p1|22|"; fast_pattern;
    pcre:"/name=(?P<q>[\x22\x27])a(?P=q)[^\r\n]*\r\n[\r\n\s]+(?:S(?:e(?:lfRemove|cInfo)|tringTools|afeMode|ql)|(?:Bruteforc|Consol)e|FilesMan|Network|Logout|Php)/i";
    classtype:attempted-user;
    sid:2016354; rev:4;
    metadata:created_at 2013_02_05, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_04_23;
)

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