ET MALWARE Sisproc update

Query · suricata

flow:to_server,established;
http.uri;
content:"/poll/update.txt";
http.header_names;
content:!"Referer|0d 0a|";
Raw source ET MALWARE Sisproc update · 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 Sisproc update";
    flow:to_server,established;
    http.uri;
    content:"/poll/update.txt";
    http.header_names;
    content:!"Referer|0d 0a|";
    reference:md5,f8b3fb4e5f8f1b3bd643e58f1015f9fc;
    classtype:trojan-activity;
    sid:2017725; rev:6;
    metadata:created_at 2013_11_16, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_04_27;
)

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