ET MALWARE Possible Malicous Macro DL EXE Jul 01 2016 (dll generic custom headers)

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:".dll";
http.header;
content:"|0d 0a|accept-Encoding|3a 20|none|0d 0a|accept-Language|3a 20|en-US.q=0.8|0d 0a|Content-Type|3a 20|application/x-www-form-urlencoded|0d 0a|"; fast_pattern;
http.user_agent;
content:"MSIE 7";
http.header_names;
content:!"Referer|0d 0a|";
content:!"Cookie|0d 0a|";
Raw source ET MALWARE Possible Malicous Macro DL EXE Jul 01 2016 (dll generic custom headers) · 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 Possible Malicous Macro DL EXE Jul 01 2016 (dll generic custom headers)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:".dll";
    http.header;
    content:"|0d 0a|accept-Encoding|3a 20|none|0d 0a|accept-Language|3a 20|en-US.q=0.8|0d 0a|Content-Type|3a 20|application/x-www-form-urlencoded|0d 0a|"; fast_pattern;
    http.user_agent;
    content:"MSIE 7";
    http.header_names;
    content:!"Referer|0d 0a|";
    content:!"Cookie|0d 0a|";
    reference:md5,62e7a146079f99ded1a6b8f2db08ad18;
    classtype:trojan-activity;
    sid:2022941; rev:5;
    metadata:affected_product MS_Office, attack_target Client_Endpoint, created_at 2016_07_01, deployment Perimeter, malware_family MalDocGeneric, performance_impact Low, confidence Medium, signature_severity Major, tag MalDoc, updated_at 2020_11_05;
)

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