ET MALWARE JS/Nemucod requesting EXE payload 2015-12-01

Query · suricata

flow:to_server,established;
flowbits:set,ET.nemucod.exerequest;
http.method;
content:"GET";
http.uri;
content:".exe?"; fast_pattern; nocase;
pcre:"/\/[0-9]{2}\.exe\?[0-9]$/i";
http.user_agent;
content:"MSIE 7.0";
http.header_names;
content:!"Referer|0d 0a|"; nocase;
http.header;
content:!"User-Agent|3a 20|BlueCoat"; nocase;

Rule dependencies

Feeds into

  • 1 rule read ET.nemucod.exerequest · view all
Raw source ET MALWARE JS/Nemucod requesting EXE payload 2015-12-01 · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE JS/Nemucod requesting EXE payload 2015-12-01";
    flow:to_server,established;
    flowbits:set,ET.nemucod.exerequest;
    http.method;
    content:"GET";
    http.uri;
    content:".exe?"; fast_pattern; nocase;
    pcre:"/\/[0-9]{2}\.exe\?[0-9]$/i";
    http.user_agent;
    content:"MSIE 7.0";
    http.header_names;
    content:!"Referer|0d 0a|"; nocase;
    http.header;
    content:!"User-Agent|3a 20|BlueCoat"; nocase;
    reference:url,www.certego.net/en/news/italian-spam-campaigns-using-js-nemucod-downloader/;
    reference:md5,77290f994d05ad0add5768c9c040dc55;
    classtype:trojan-activity;
    sid:2022207; rev:6;
    metadata:created_at 2015_12_02, malware_family JS_Nemucod, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_06_09;
)

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