ET MALWARE Win32/SiMay RAT Activity (GET)

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.request_line;
content:"&shareKey=cfae45c9e7cc8a7734b72abe98235dd1 HTTP/1.0"; fast_pattern; endswith;
http.host;
content:"note.youdao.com";
Raw source ET MALWARE Win32/SiMay RAT 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 Win32/SiMay RAT Activity (GET)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.request_line;
    content:"&shareKey=cfae45c9e7cc8a7734b72abe98235dd1 HTTP/1.0"; fast_pattern; endswith;
    http.host;
    content:"note.youdao.com";
    reference:md5,a641b3b81153936c6a3d3d99fe8d9736;
    reference:md5,8205ccb910dc783efcd7d480ef1bd7d9;
    reference:url,www.sentinelone.com/wp-content/uploads/2022/04/SiMay-RAT.pdf;
    classtype:trojan-activity;
    sid:2036600; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2022_05_17, deployment Perimeter, malware_family SiMayRAT, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_05_17;
)

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