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How does Avast Antivirus work?

Anti-virus is a utility software program that eliminates all applications that damage your computer. Now you are questioning if the program itself is a virulent disease, yes a deadly disease is also a program, that's designed to harm the system.

Whenever a file is infected with malware or if no malware is detected at some stage in the scan, it checks whether or not the malware detected is identical with the virus definition or not, if it is similar then such document Share to Gives Some malware properties and similar packages remain in the virus definition, so it is essential that the 'virus definition' antivirus enterprise is constantly updated. This software scans the entire file on the computer. And while a record signature or virus definition matches up with a file, it upkeeps or deletes the report at the equal time.

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What threats can antivirus software prevent?

Answer:

Malware: "Malware" is short for malicious software and used as a single term to refer to viruses, spyware, worm etc. Malware is designed to cause damage to a stand-alone computer or a networked PC.

Adware and spyware: Embedded in free software, such as weather trackers and screensavers; this type of malware generates ads and tracks behavior

Virus: A computer virus is a malicious software program that is loaded onto a user's computer without the user's knowledge and acts maliciously. It can replicate itself, insert itself onto other programs or files, infecting them in the process. However, not all computer viruses are destructive.

Phishing: Personally secure links lead users to malicious sites that collect personal data and login credentials and can be found within websites, emails, or advertisements

Ransomware: Ransomware is a form of malware in which rogue software code effectively holds a user's computer hostage until a "ransom" fee is paid. ... Upon compromising a computer, ransomware will typically either lock a user's system or encrypt files on the computer and then demand payment before the system or files will be restored.

How does antivirus detect viruses?

There is a lot of data in our system, so it is very difficult to find the virus out of such data; you know in which ways the antivirus detects the virus.

Some methods to find the virus are as follows:

• Signature-based detection
• Heuristic-based detection
• Behavioral-based detection
• Sandbox detection
• Data mining technique

Signature-based detection:

This is one of the oldest ways to find laptop viruses. In this method, all the.Exe files in the pc are matched with Virus Definition Files or with different Malware Type, on every occasion an unknown report is identified, then the action is taken on it.