ET MALWARE Phorpiex Botnet Downloader Activity (GET)

Query · suricata

flow:established,to_server;
http.request_line;
content:"GET /zeta_ HTTP/1.1"; fast_pattern;
http.header_names;
content:"|0d 0a|User-Agent|0d 0a|Host|0d 0a 0d 0a|"; bsize:22;
http.host;
pcre:"/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/";
Raw source ET MALWARE Phorpiex Botnet Downloader Activity (GET) · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE Phorpiex Botnet Downloader Activity (GET)";
    flow:established,to_server;
    http.request_line;
    content:"GET /zeta_ HTTP/1.1"; fast_pattern;
    http.header_names;
    content:"|0d 0a|User-Agent|0d 0a|Host|0d 0a 0d 0a|"; bsize:22;
    http.host;
    pcre:"/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/";
    reference:md5,ec96bcc50ca8fa91821e820fdfe30915;
    reference:url,research.checkpoint.com/2021/phorpiex-botnet-is-back-with-a-new-twizt-hijacking-hundreds-of-crypto-transactions/;
    classtype:trojan-activity;
    sid:2034778; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2021_12_20, deployment Perimeter, malware_family Phorpiex, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_12_20;
)

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