ET SHELLCODE Possible %u0d%u0d%u0d%u0d UTF-8 Heap Spray Attempt

Query · suricata

flow:established,to_client;
content:"%u0d%u0d%u0d%u0d"; nocase;
Raw source ET SHELLCODE Possible %u0d%u0d%u0d%u0d UTF-8 Heap Spray 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 -> $HOME_NET any (
    msg:"ET SHELLCODE Possible %u0d%u0d%u0d%u0d UTF-8 Heap Spray Attempt";
    flow:established,to_client;
    content:"%u0d%u0d%u0d%u0d"; nocase;
    reference:url,www.darkreading.com/security/vulnerabilities/221901428/index.html;
    classtype:shellcode-detect;
    sid:2012967; rev:3;
    metadata:created_at 2011_06_09, confidence Medium, signature_severity Major, updated_at 2019_07_26;
)

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