Common virus killing technologies include signature detection, behavior monitoring, heuristic analysis, virtual machine sandbox, threat intelligence and blacklist, anomaly detection and so on.

1. Signature detection

This is one of the most common virus killing technologies. It identifies and kills known viruses by comparing them with their virus characteristics or virus codes. When there is a corresponding virus signature in the virus database of anti-virus software, it will be judged as a virus and processed.

2. Behavior monitoring

Behavior monitoring technology detects potential malicious activities by tracking and monitoring the behavior of software programs. When a software program executes suspicious behaviors, such as modifying system files and accessing restricted resources, behavior monitoring technology can detect and deal with them in time.

3. Heuristic analysis

Heuristic analysis is a detection technology based on patterns and behaviors. It identifies suspicious or malicious behavior patterns through the analysis of files, processes or network traffic. Compared with signature detection, heuristic analysis can detect unknown viruses and new threats.

4. Virtual machine sandbox

Virtual machine sandbox technology runs suspicious files or programs in an isolated virtual environment to observe their behavior. By simulating the behavior of normal system in virtual environment, malicious code can be identified and killed without affecting the security of real system.

5. Threat intelligence and blacklist

Threat intelligence and blacklist technology establishes a blacklist database based on known threat information, such as malicious domain names, IP addresses and malicious software. The system can update the blacklist regularly or in real time, and filter and block the incoming files, links or network traffic according to the blacklist data.

6. anomaly detection

by analyzing the normal behavior pattern of the system, anomaly detection technology regards activities that are inconsistent with the normal behavior pattern as potential threats. It can detect unknown malicious activities and deal with them.