Antivirus is a security mechanism that identifies and handles virus-infected files through the detection of virus signatures. It aims to prevent data corruption, permission modification, and system crashes caused by virus-infected files, thereby ensuring network security.
Leveraging a large and continuously updated virus signature database, the antivirus function protects intranet users and servers from being compromised by virus-infected files. An antivirus-capable device is deployed at the network egress to detect and eliminate viruses, thereby protecting the network.
Why Do We Need Antivirus?
Viruses are a type of malicious code that can spread through mail and file transfer protocols, and which are often attached to application programs and files. Viruses perform various types of harmful activities on infected hosts, posing serious threats to both hosts and the network. Some viruses may exhaust resources and maliciously occupy network bandwidth, while others control host permissions and steal user data. Certain viruses can even corrupt host hardware.
With the continuous development of network technologies, users are now transferring, downloading, and sharing files more frequently than ever before, and face unprecedented virus threats as a result.
After a network security device (such as a firewall or dedicated antivirus gateway) is deployed at the network egress and the antivirus function is configured, the device allows normal files to enter the intranet. However, once a virus-infected file is detected, the device blocks it or alerts users to its presence.
The antivirus function configured on the network security device and the antivirus software installed on user hosts are mutually complementary. As they are deployed at different locations and use different antivirus signature databases, they can be used together to secure user hosts and the network.
Antivirus function
How Does Antivirus Work?
Huawei network security devices use the dedicated and efficient intelligent awareness engine and continuously updated virus signature databases to detect and handle virus-infected files. The workflow of the antivirus function involves three parts.
Antivirus processing
For more information, see Antivirus.
