ET MALWARE Win32/Necurs

Query · suricata

flow:to_server,established;
http.method;
content:"POST";
http.uri;
content:"/iis/host.aspx"; fast_pattern;
http.header_names;
content:!"User-Agent|0d 0a|";
http.content_type;
content:"application/octet-stream";
Raw source ET MALWARE Win32/Necurs · Suricata
Esc
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 Win32/Necurs";
    flow:to_server,established;
    http.method;
    content:"POST";
    http.uri;
    content:"/iis/host.aspx"; fast_pattern;
    http.header_names;
    content:!"User-Agent|0d 0a|";
    http.content_type;
    content:"application/octet-stream";
    reference:md5,871ecf11ddd7ffe294cab82bcaf9c310;
    reference:url,blogs.technet.com/b/mmpc/archive/2012/12/06/unexpected-reboot-necurs.aspx;
    classtype:trojan-activity;
    sid:2016000; rev:3;
    metadata:created_at 2012_12_08, malware_family Win32_Necurs, signature_severity Major, updated_at 2020_04_22;
)

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