YD/T 4576-2023
Technical requirements for third-party security audits of network security public testing platforms (English Version)

Standard No.

YD/T 4576-2023

Language

Chinese, Available in English version

Release Date

2023

Published By

Professional Standard - Post and Telecommunication  CN  /  YD

Latest

YD/T 4576-2023

Introduction

Analysis of the core framework of the standard

Audit dimensions	Technical requirements	Implementation points	Compliance basis
Traffic audit	Analysis of 8 protocols such as HTTP/HTTPS Abnormal traffic baseline comparison	Traffic slice storage ≥ 6 months Real-time DPI deep detection	YD/T 3744 Section 6.1
Behavior audit	Test entity behavior modeling Platform management behavior verification	Privilege escalation/database drag behavior identification Access frequency anomaly detection	YD/T 3745 Chapter 8
Threat Audit	10 types of threats such as APT/DDoS	Threat Intelligence Linkage Analysis Attack Chain Restoration	Appendix A.2.3

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Detailed Explanation of Key Technical Requirements

1. Traffic Audit Implementation Specifications

The standard requires the use of Network Traffic Probe to implement:

• Protocol Coverage: Must support analysis of 8 basic protocols such as HTTP/HTTPS/TCP
• Storage Requirements: The original traffic packet storage period is not less than 180 days
• Anomaly Detection: A dynamic baseline model needs to be established to detect database drag behavior (threshold ≥5MB/s for 10s)

Application Case in Financial Industry

In a bank's public testing project, the audit system discovered abnormal downloading behavior (batch transfer of SQL files) of testers through traffic feature analysis, triggered real-time alarms and retained complete session records.

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2. Behavioral Audit Implementation Specifications

The standard defines two types of audit objects:

Audit objects	Key indicators	Risk threshold
Testers	Number of logins per day Frequency of target system access	≥20 times/hour ≥50 requests/minute
Public testing platform	Data isolation integrity Access control effectiveness	0 cross-project access 100% permission review

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Standard evolution and industry impact

This standard establishes a technical framework for third-party audits for the first time:

1. 2018: Basic standard for crowd-testing platform established
2. 2020: YD/T 3744/3745 released
3. 2022: New technical requirements for third-party audits

The impact on security vendors includes: audit probes need to add a protocol parsing module, and crowd-testing platforms need to open audit interfaces.

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Implementation Suggestions

Enterprise Preparation

• Choose an audit service provider that meets the YD/T XXXX certification
• Specify audit data retention requirements in the test agreement

Technical Implementation Path

1. Deploy traffic mirroring collection points
2. Configure a behavioral baseline rule base
3. Establish a tripartite audit coordination mechanism

YD/T 4576-2023 Referenced Document

• YD/T 3744-2020 Technical requirements for network security crowd testing platform
• YD/T 3745-2020 Network security crowd testing service management requirements

YD/T 4576-2023 history

• 2023 YD/T 4576-2023 Technical requirements for third-party security audits of network security public testing platforms

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