About Antivirus Technology

Antivirus installation is used to eliminate computer viruses, hijackers, key-loggers, malicious LSPs, rootkits, spyware, and other malicious software. Antivirus software is usually integrated with monitoring recognition, virus scan, virus removal, and automatic upgrade features. Some antivirus software has data recovery and computer defense systems such as firewalls as well, to ensure that systems work properly.

Through real-time monitoring, signature-based detection can constantly scan for known virus definitions and behavior from the database, compare them with virus attack patterns, and release further executable protection codes. However, it is not possible for an antivirus to identify new or unknown malware. To cover this weakness, some antivirus software groups unknown source files to a sandbox where it further analyzes what they do to see if they perform any malicious action.

Antivirus Technology

1. Shelling technology is very commonly used. It is able to scan and analyze compressed files.

2. Self-protection technology is basically like an immune system. It prevents the virus or malware from stopping antivirus monitoring.

3. Virus corrupted file repair technology can repair files destroyed by viruses. Without this technology, anti-virus software often deletes the infected system files, which makes the computer crash or unable to start properly.

4. Active real-time upgrade technology automatically upgrades server information and virus definitions each time you connect to the Internet. There is also more advanced cloud technology, which uses real-time access to cloud data centers to make virus database comparisons and protect against the latest viruses. Users do not need frequent upgrades.

5. Active defense technology through automatic monitoring of anti-virus system for dynamic simulation of various procedural actions, the logical relationship between the actions of automatic analysis program, integrated application of virus identification rules knowledge to achieve the purpose of active defense.

6. Inspired technology is the original eigenvalue recognition technology based on a summary of the analyses of suspicious program samples, which are transplanted into the antivirus program. When viruses meet the conditions, users will be notified to defend against the unknown viruses or malware. In contrast, conventional antivirus software collects virus definitions, types, or behavior from a huge number of user computers, analyzes the database, then redistributes it as antivirus updates. This method is time-consuming.

7. Using artificial intelligence (AI) algorithms with "self-learning, self-evolution" capabilities, antivirus software can remove packers and variants of viruses without frequent updates to the database, or analyses of virus static characteristics. It uses the intelligent algorithms to discover and learn new virus variations. This leading technology does not have the "do not upgrade the virus database, cannot kill the virus" technical problems that the first two generations of antivirus engines have.

Antivirus Problems

Many antivirus software requires a lot of system resources, such as memory resources and CPU resources, to ensure the safety of the system but this reduces the system speed.

Antivirus technology continues to progress but for now, antivirus software can only kill viruses. If used to kill Trojans, some user data or system files may be destroyed as well, causing system corruption problems.