ET MALWARE Win32/Zegost!ml CnC Checkin

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/dark/275.htm"; bsize:13; fast_pattern;
http.user_agent;
content:"|3b 2b|SV1|3b|";
http.header_names;
content:"|0d 0a|User-Agent|0d 0a|Host|0d 0a|Cache-Control|0d 0a 0d 0a|"; startswith;
Raw source ET MALWARE Win32/Zegost!ml CnC Checkin · 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 Win32/Zegost!ml CnC Checkin";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/dark/275.htm"; bsize:13; fast_pattern;
    http.user_agent;
    content:"|3b 2b|SV1|3b|";
    http.header_names;
    content:"|0d 0a|User-Agent|0d 0a|Host|0d 0a|Cache-Control|0d 0a 0d 0a|"; startswith;
    reference:md5,36b81518c59c0ab6c17e4e750be0c85e;
    classtype:command-and-control;
    sid:2038778; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_09_08, deployment Perimeter, malware_family Win32_Zegost_ml, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_09_08, reviewed_at 2024_12_24;
)

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