ET MALWARE Hades APT Downloader Attempting to Retrieve Stage 2 Payload

Query · suricata

flow:established,to_server;
urilen:12;
http.method;
content:"GET";
http.uri;
content:"/check/index"; fast_pattern;
http.connection;
content:"Keep-Alive";
http.header_names;
content:"Host|0d 0a|Connection|0d 0a 0d 0a|";
content:!"Referer";
content:!"User-Agent";
content:!"Accept";
content:!"Cache";
Raw source ET MALWARE Hades APT Downloader Attempting to Retrieve Stage 2 Payload · 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 Hades APT Downloader Attempting to Retrieve Stage 2 Payload";
    flow:established,to_server;
    urilen:12;
    http.method;
    content:"GET";
    http.uri;
    content:"/check/index"; fast_pattern;
    http.connection;
    content:"Keep-Alive";
    http.header_names;
    content:"Host|0d 0a|Connection|0d 0a 0d 0a|";
    content:!"Referer";
    content:!"User-Agent";
    content:!"Accept";
    content:!"Cache";
    reference:url,research.checkpoint.com/new-strain-of-olympic-destroyer-droppers/;
    classtype:targeted-activity;
    sid:2026619; rev:3;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_11_16, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Downloader, tag Hades, updated_at 2020_08_27;
)

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