A simplex data transmission service probing method based on TCP link state detection

By analyzing data transmission protocols and constructing specific probe messages, and utilizing TCP link state detection, the problem of service probing in simplex communication was solved, enabling accurate identification of the service type and version of the target port, and simplifying the mapping and statistics of network assets.

CN122437694APending Publication Date: 2026-07-21CHINESE PEOPLES LIBERATION ARMY UNIT 63891
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINESE PEOPLES LIBERATION ARMY UNIT 63891
Filing Date
2026-04-27
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In simplex communication data transmission services, existing technologies cannot effectively detect the data transmission service and version of the target port, especially in the absence of application layer data packet feedback, making network detection difficult.

Method used

By analyzing the data transmission protocol, probe data packets with a specific structure are constructed. TCP link state detection is used to establish TCP connections with the target service one by one, detect changes in link state, and determine the service type and version by combining the link state feature matrix.

Benefits of technology

It provides a service detection solution that does not rely on application layer feedback data, and can locate endpoints of unupgraded services during vulnerability remediation activities, simplifying network asset mapping and statistics in intranet scenarios.

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Abstract

The application discloses a kind of simplex data transmission service detection methods based on TCP link state detection, including analysis data transmission protocol, judging extraction data transmission message format, clear target IP address and TCP port, probe target host viability and port open condition, according to message format, construct the detection data message of specific structure, and gradually with target service establish TCP connection, send detection message, detect TCP link state change, finally according to TCP link state feature discernment probe target service type and version.The scheme of the application is aimed at the data transmission service using TCP long connection communication, defines the construction requirement of detection data packet, and establishes TCP link state feature matrix, provides the service detection scheme not dependent on application layer feedback data, can provide simple and fast way for security operation personnel to survey and statistics specific network assets in the intranet scene satisfying application condition.
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