Virus Scan Overview

What Is Virus Scan?

Viruses are self-replicable instructions or program codes compiled independently or embedded in server systems to adversely affect the servers by damaging their functions or data. Once a virus infiltrates a server, it can cause a range of damages – from occupying the system memory and slowing down operations to important data loss, data leaks, and system breakdown, causing immeasurable losses.

HSS can help you detect and remove viruses to protect your servers.

HSS combines cloud-based and local antivirus mechanisms to scan executable files, compressed files, scripts, documents, images, and audiovisual files for viruses. You can perform quick scan, full-disk scan, and custom scans on servers as needed to detect and remove virus files in a timely manner, enhancing the virus defense of the system.

Virus Scan and Removal Principles

The HSS antivirus combines cloud-based and local antivirus mechanisms. On servers, it uses the virus signature database and agent-side antivirus engine to quickly scan all static files. A malicious file is isolated once it is detected. A suspicious executable file can be uploaded to the cloud virus detection center. This center uses multiple antivirus engines, AI models, and threat intelligence technologies to further evaluate suspicious files and remove viruses.

Figure 1 Virus scan and removal principles

Detectable and Removable Viruses

Antivirus can scan for and remove ransomware, mining programs, DDoS Trojans, Trojan programs, backdoors, malicious programs, high-risk programs, worms, suspicious programs, and self-mutating Trojans.

Advantages of Virus Scan and Removal

• Fast and accurate file type identification

  This function integrates dedicated file type identification algorithms to check the real content of files and effectively detect fake file suffixes or content. Hundreds of file types can be quickly and accurately identified.

• In-depth parsing of malicious files

  The Cloud+Local collaborative virus detection mechanism analyzes binary files, compound documents, and diverse scripts. It can restore complete file content and deeply identify potential malicious behaviors.

• 24/7 update to the latest virus detection capabilities

  Huawei Cloud virus analysis experts built a complete, reliable, and efficient cloud intelligent security center based on the computing technologies of the intelligence center to accurately defend against and analyze massive latest viruses in real time. HSS updates the latest protection capabilities from the security intelligence center in real time to defend against the latest viruses in a timely manner.

Constraints

• This function is available in HSS professional, enterprise, premium, WTP, and container editions. For details about how to purchase and upgrade HSS, see Purchasing an HSS Quota and Upgrading a Protection Quota.
  • Professional edition: quick scan and removal
  • Enterprise edition and other editions: quick, full-disk, and customized scan and removal
• To use virus scan and removal, ensure the agent installed on the server falls within the following ranges. For more information, see Upgrading the Agent.
  • Linux: 3.2.9 or later
  • Windows: 4.0.20 or later
• To use virus scan and removal, ensure the AV Detection policy is enabled. For details, see Configuring Policies.

Process of Virus Scan

Figure 2 Process of Virus Scan