告诉Snort查找包中的特定内容，例如Web请求中的GET或telnet连接中的特定端口。
It tells Snort something specific to look for in a packet, such as GET in a Web request or a specific port in a Telnet connection.
其静态分析功能分析源代码和字节代码，基于模式以及基于流和基于路径，并且能够跨方法、类和包查找违规行为。
Its static analysis analyzes source code and byte code, is pattern-based as well as flow - and path-based, and is capable of finding rule violations that cross methods, classes, and packages.
从目录表中查找主查询的包和片段信息。
Find the package and section information for the main query from the catalog tables.
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