ET MALWARE Zeus Bot GET to Google checking Internet connectivity

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/webhp"; nocase;
http.connection;
content:"close"; nocase;
http.header_names;
content:"|0d 0a|Accept|0d 0a|Connection|0d 0a|User-Agent|0d 0a|"; depth:34;
content:!"Referer";
Raw source ET MALWARE Zeus Bot GET to Google checking Internet connectivity · 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 $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Zeus Bot GET to Google checking Internet connectivity";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/webhp"; nocase;
    http.connection;
    content:"close"; nocase;
    http.header_names;
    content:"|0d 0a|Accept|0d 0a|Connection|0d 0a|User-Agent|0d 0a|"; depth:34;
    content:!"Referer";
    reference:url,www.secureworks.com/research/threats/zeus/?threat=zeus;
    reference:url,lists.emergingthreats.net/pipermail/emerging-sigs/2010-October/009807.html;
    classtype:command-and-control;
    sid:2013076; rev:11;
    metadata:created_at 2011_06_22, signature_severity Major, updated_at 2023_03_10;
)

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