How exactly does an Anti-Virus software work?

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An anti-virus software program is a computer program that can be used to scan files to identify and eliminate computer viruses and other malicious software (malware).
Anti-virus software typically uses two different techniques to accomplish this:
Examining files to look for known viruses by means of a virus dictionary .
Identifying suspicious behavior from any computer program which might indicate infection.
Features of Antivirus Software
  • Background Scanning:
Antivirus software scans all the files that you open from the back-end; this is also termed as on access scanning.
  • Full System Scans:
This is done to make sure that there are no viruses present hidden on your system. Full system scans are also useful when you repair your infected computer.
  • Virus Definitions:
Antivirus software depends on the virus definitions to identify malware. That is the reason it updates on the new viruses definitions.

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