ET MALWARE ETag HTTP Header Observed at CNCERT Sinkhole

Query · suricata

flow:established,to_client;
http.header;
content:"ETag|3a 20 22|2b1-55fb5d562c37c|22|";
Raw source ET MALWARE ETag HTTP Header Observed at CNCERT Sinkhole · 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 MALWARE ETag HTTP Header Observed at CNCERT Sinkhole";
    flow:established,to_client;
    http.header;
    content:"ETag|3a 20 22|2b1-55fb5d562c37c|22|";
    classtype:bad-unknown;
    sid:2033104; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2021_06_07, deployment Perimeter, confidence High, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_06_07;
)

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