This concentrates more in detecting the characteristics of the malware during execution.
It is really essential for all the antivirus companies to update the definitions with the latest malware to ensure PC protection combating even the most latest form of malicious threat.
Here the known files would be allowed entry and would run in the system while the unknown ones, irrespective of whether they are good or bad, are sent to the Defense Sandbox.
These would be allowed to run, but only in this restricted environment.
Full system scans are also useful when you repair your infected computer.
Antivirus software depends on the virus definitions to identify malware.