ET MALWARE Corebot Module Download 2

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:".dat"; endswith;
http.user_agent;
content:"Mozilla/5.0 (Windows NT 6.1|3b 20|rv|3a|15.0) Gecko/20100101 Firefox/15.0.1"; fast_pattern; startswith;
http.header_names;
content:!"Content-Type|0d 0a|";
content:!"Accept";
Raw source ET MALWARE Corebot Module Download 2 · Suricata
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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 Corebot Module Download 2";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:".dat"; endswith;
    http.user_agent;
    content:"Mozilla/5.0 (Windows NT 6.1|3b 20|rv|3a|15.0) Gecko/20100101 Firefox/15.0.1"; fast_pattern; startswith;
    http.header_names;
    content:!"Content-Type|0d 0a|";
    content:!"Accept";
    reference:url,securityintelligence.com/watch-out-for-corebot-new-stealer-in-the-wild/;
    reference:md5,f32f2209a1986c55750ceb6d8066df9f;
    classtype:trojan-activity;
    sid:2021754; rev:3;
    metadata:created_at 2015_09_09, signature_severity Major, updated_at 2020_06_01;
)

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