Security Audit of hacker intrusion prevention technology

Security Audit is a monitoring mechanism that simulates social activities on the network. It monitors, records, and puts forward security opinions and suggestions on activities of the network system. Security audit can be used to record, track, and review network operation statuses and processes. Security Audit not only effectively evaluates network risks, but also provides decision-making basis for formulating reasonable security policies and strengthening security management, so that the network system can adjust countermeasures in a timely manner.

As network security solutions become increasingly popular today, security audit is an important part of the network security system. Network users comprehensively monitor, analyze, and evaluate security devices, network devices, application systems, and system operating conditions in the network system. This is an important means to ensure network security.

Computer Network Security Audit mainly includes security audit for operating systems, databases, Web, mail systems, network devices, firewalls, and other projects, as well as strengthening security education and enhancing security responsibility awareness.

Network security is dynamic. If real-time and centralized visual audit is not performed on the created system, the system security cannot be evaluated in a timely manner and the security risks in the system cannot be discovered.

Currently, the network security audit system includes the following main functions and common problems:

1. Main functions of the network security audit system

(1) collect various types of log data. Collects logs of various operating systems, firewall systems, intrusion detection systems, network switches, routing devices, services, and application systems.

(2) log management. It can automatically collect log information in multiple formats and convert it into a uniform log format, facilitating unified management and processing of various complex log information.

(3) log query. You can query the log information in the network in multiple ways and display it as a report.

(4) intrusion detection. Multiple built-in correlation rules are used to analyze the correlation of logs and alarm information generated by devices distributed in the network, so as to detect security events that are hard to be detected by a single system.

(5) automatically generate a security analysis report. Analyzes network or system security based on the log information recorded in the log database, and submits the security analysis report to the Administrator.

(6) Real-time network status monitoring. Monitors the status, network devices, log content, and network behavior of specific devices running with proxies.

(7) event response mechanism. When the security audit system detects security events, it can respond promptly and automatically trigger alarms.

(8) centralized management. The security audit system can use a unified management platform to centrally manage log agents, security audit centers, and log databases.

2. Common problems involved in the network security audit system

(1) compatibility with log formats. Generally, different types of devices or systems produce different log formats, which makes it difficult to analyze network security events in a centralized manner.

(2) log data management issues. The log data volume is very large and keeps increasing. When the limit is exceeded, it cannot be discarded simply. A complete backup, recovery, and processing mechanism is required.

(3) centralized Analysis of log data. An attacker may attack multiple network targets at the same time. If the log information on each target host is analyzed by a single attacker, the attack is not only heavy, but also difficult to detect. How to associate logs on multiple target hosts to discover attack behavior is an important issue facing the security audit system.

(4) Automatic Generation of analysis reports and statistical reports. A large amount of log information is generated every day on the network. The huge workload makes it unrealistic for administrators to manually view and analyze various log information. Therefore, it is necessary to provide an intuitive Automatic Generation Mechanism for analysis reports and statistical reports. This mechanism can ensure that administrators can promptly and effectively discover various exceptions on the network.

The analysis of the security audit technology will introduce you to this topic. I hope you have understood and understood the above knowledge. There are also many hacker intrusion technologies, this article will be further organized and shared.