ET MALWARE Emotet Style Request Activity (GET)

Query · suricata

flow:established,to_server;
http.request_line;
content:"GET / HTTP/1.1";
http.header_names;
content:"|0d 0a|Connection|0d 0a|Cookie|0d 0a|Host|0d 0a 0d 0a|"; bsize:30; fast_pattern;
http.host;
pcre:"/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/";
target:src_ip;
Raw source ET MALWARE Emotet Style Request Activity (GET) · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE Emotet Style Request Activity (GET)";
    flow:established,to_server;
    http.request_line;
    content:"GET / HTTP/1.1";
    http.header_names;
    content:"|0d 0a|Connection|0d 0a|Cookie|0d 0a|Host|0d 0a 0d 0a|"; bsize:30; fast_pattern;
    http.host;
    pcre:"/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/";
    reference:md5,51b92609a92c5061ce7fb88193ee0f02;
    reference:md5,1f222a6957893015858f602024096910;
    reference:url,twitter.com/Cryptolaemus1/status/1587792659275448320;
    classtype:trojan-activity;
    sid:2039624; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2022_11_03, deployment Perimeter, deployment SSLDecrypt, malware_family Emotet, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_11_03;
    target:src_ip;
)

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