ET MALWARE JS/Nemucod.M.gen requesting PDF payload 2015-10-07

Query · suricata

flow:to_server,established;
flowbits:set,ET.nemucod.pdfrequest;
http.method;
content:"GET";
http.uri;
content:".php?"; nocase;
content:"key="; nocase; distance:0; fast_pattern;
content:"pdf="; nocase; distance:0;
pcre:"/\/get(?:_new)?\.php\?[a-zA-Z]{4,}=0\.[0-9]{10,}&key=[a-zA-Z0-9]{4,}&pdf=[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 2015-10-07 · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE JS/Nemucod.M.gen requesting PDF payload 2015-10-07";
    flow:to_server,established;
    flowbits:set,ET.nemucod.pdfrequest;
    http.method;
    content:"GET";
    http.uri;
    content:".php?"; nocase;
    content:"key="; nocase; distance:0; fast_pattern;
    content:"pdf="; nocase; distance:0;
    pcre:"/\/get(?:_new)?\.php\?[a-zA-Z]{4,}=0\.[0-9]{10,}&key=[a-zA-Z0-9]{4,}&pdf=[a-zA-Z]{4,}$/";
    http.header_names;
    content:!"Referer|0d 0a|"; nocase;
    reference:url,www.certego.net/en/news/italian-spam-campaigns-using-js-nemucod-downloader/;
    reference:md5,0bc86ab7ead67e264531ccb16c3c529a;
    classtype:trojan-activity;
    sid:2021953; rev:4;
    metadata:created_at 2015_10_15, malware_family JS_Nemucod_M_gen, performance_impact Significant, signature_severity Major, updated_at 2024_04_29;
)

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