ET MALWARE JS/Nemucod.M.gen requesting PDF payload 2015-11-02

Query · suricata

flow:to_server,established;
flowbits:set,ET.nemucod.pdfrequest;
http.method;
content:"POST";
http.uri;
content:"redir.php"; nocase;
http.request_body;
content:"jndj="; fast_pattern;
content:"&ncm="; distance:0;
pcre:"/^[a-zA-Z]{4,}=0\.[0-9]{10,}&jndj=[a-zA-Z0-9]{4,}&ncm=[a-zA-Z]{4,}$/";
http.header_names;
content:!"Referer|0d 0a|"; nocase;

Rule dependencies

Feeds into

  • 1 rule read ET.nemucod.pdfrequest · view all
Raw source ET MALWARE JS/Nemucod.M.gen requesting PDF payload 2015-11-02 · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE JS/Nemucod.M.gen requesting PDF payload 2015-11-02";
    flow:to_server,established;
    flowbits:set,ET.nemucod.pdfrequest;
    http.method;
    content:"POST";
    http.uri;
    content:"redir.php"; nocase;
    http.request_body;
    content:"jndj="; fast_pattern;
    content:"&ncm="; distance:0;
    pcre:"/^[a-zA-Z]{4,}=0\.[0-9]{10,}&jndj=[a-zA-Z0-9]{4,}&ncm=[a-zA-Z]{4,}$/";
    http.header_names;
    content:!"Referer|0d 0a|"; nocase;
    reference:url,www.certego.net/en/news/italian-spam-campaigns-using-js-nemucod-downloader/;
    reference:md5,f77e7cac3793136bcd1d77ec6a00d8e2;
    classtype:trojan-activity;
    sid:2022038; rev:3;
    metadata:created_at 2015_11_05, malware_family JS_Nemucod_M_gen, signature_severity Major, updated_at 2020_06_09;
)

Detection rules belong to the projects that publish them and remain under their own licenses. This site indexes and links to them; it claims no rights in them.