ET MALWARE Win32/Orchard Botnet Activity

Query · suricata

flow:established,to_server;
content:"|5b 2a 5d 5b 6f 2e 72 2e 63 2e 68 2e 61 2e 72 2e 64 5d|"; startswith; fast_pattern;
content:"|5b 6f 2e 72 2e 63 2e 68 2e 61 2e 72 2e 64 5d|"; distance:0;
Raw source ET MALWARE Win32/Orchard Botnet Activity · 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 tcp $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Win32/Orchard Botnet Activity";
    flow:established,to_server;
    content:"|5b 2a 5d 5b 6f 2e 72 2e 63 2e 68 2e 61 2e 72 2e 64 5d|"; startswith; fast_pattern;
    content:"|5b 6f 2e 72 2e 63 2e 68 2e 61 2e 72 2e 64 5d|"; distance:0;
    reference:md5,3fbbded0736a96cbe27fe939dc12cc35;
    reference:url,blog.netlab.360.com/orchard-dga/;
    classtype:command-and-control;
    sid:2038728; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_09_07, deployment Perimeter, malware_family Win32_Orchard, performance_impact Low, confidence High, signature_severity Major, updated_at 2022_09_02;
)

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