ET SCAN Apache mod_proxy Reverse Proxy Exposure 2

Query · suricata

flow:established,to_server;
http.uri;
content:"|3a|@";
http.request_line;
content:"GET|20 3a|@"; depth:6;
Raw source ET SCAN Apache mod_proxy Reverse Proxy Exposure 2 · 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 Apache mod_proxy Reverse Proxy Exposure 2";
    flow:established,to_server;
    http.uri;
    content:"|3a|@";
    http.request_line;
    content:"GET|20 3a|@"; depth:6;
    reference:url,www.contextis.com/research/blog/reverseproxybypass/;
    reference:url,mail-archives.apache.org/mod_mbox/httpd-announce/201110.mbox/%3C20111005141541.GA7696@redhat.com%3E;
    classtype:attempted-recon;
    sid:2013792; rev:6;
    metadata:created_at 2011_10_24, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_11_06;
)

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