ET MALWARE Known Sinkhole Response Header

Query · suricata

flow:established,to_client;
http.header;
content:"Server|3a 20|360Netlab-sinkhole"; nocase;
Raw source ET MALWARE Known Sinkhole Response Header · 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 MALWARE Known Sinkhole Response Header";
    flow:established,to_client;
    http.header;
    content:"Server|3a 20|360Netlab-sinkhole"; nocase;
    classtype:trojan-activity;
    sid:2033106; 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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