ET WEB_SPECIFIC_APPS Potential Cewolf DOS attempt

Query · suricata

flow:established,to_server;
http.method;
content:"GET"; nocase;
http.uri;
content:"/Cewolf?"; nocase;
pcre:"/\&(width|height)\=([2-9][0-9][0-9][0-9]*)/i";
Raw source ET WEB_SPECIFIC_APPS Potential Cewolf DOS attempt · Suricata
Esc
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 -> $HTTP_SERVERS any (
    msg:"ET WEB_SPECIFIC_APPS Potential Cewolf DOS attempt";
    flow:established,to_server;
    http.method;
    content:"GET"; nocase;
    http.uri;
    content:"/Cewolf?"; nocase;
    pcre:"/\&(width|height)\=([2-9][0-9][0-9][0-9]*)/i";
    reference:url,lists.grok.org.uk/pipermail/full-disclosure/2011-February/079547.html;
    classtype:web-application-attack;
    sid:2012406; rev:5;
    metadata:created_at 2011_03_01, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_13;
)

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