ET SCAN Acunetix Version 6 Crawl/Scan Detected

Query · suricata

flow:to_server,established;
threshold:type threshold, track by_dst, count 2, seconds 5;
http.uri;
content:"/acunetix-wvs-test-for-some-inexistent-file";
Raw source ET SCAN Acunetix Version 6 Crawl/Scan Detected · 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 -> $HTTP_SERVERS any (
    msg:"ET SCAN Acunetix Version 6 Crawl/Scan Detected";
    flow:to_server,established;
    threshold:type threshold, track by_dst, count 2, seconds 5;
    http.uri;
    content:"/acunetix-wvs-test-for-some-inexistent-file";
    reference:url,www.acunetix.com/;
    classtype:attempted-recon;
    sid:2008571; rev:8;
    metadata:created_at 2010_07_30, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_14;
)

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