ET MALWARE StormKitty Download Request With Minimal Headers

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/StormKitty/stub"; fast_pattern;
http.host;
content:"raw.githubusercontent.com"; bsize:25;
http.header_names;
content:"|0d 0a|Host|0d 0a 0d 0a|"; bsize:10;
Raw source ET MALWARE StormKitty Download Request With Minimal Headers · 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 StormKitty Download Request With Minimal Headers";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/StormKitty/stub"; fast_pattern;
    http.host;
    content:"raw.githubusercontent.com"; bsize:25;
    http.header_names;
    content:"|0d 0a|Host|0d 0a 0d 0a|"; bsize:10;
    reference:url,twitter.com/suyog41/status/1647965508963119104;
    reference:md5,9bec6e35675d3581a3fa59af2533cb13;
    classtype:trojan-activity;
    sid:2044965; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_04_17, deployment Perimeter, deployment SSLDecrypt, malware_family StormKitty, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_04_17;
)

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