Avast full scan time1/13/2023 Instead, the antivirus monitors the actions of the file, inspecting the interactions on your system. In this case, the antivirus doesn't have a signature in its database to compare a file against. ![]() ![]() If you download a file with a known signature, your antivirus should take care of it-but mishaps do happen occasionally.Īnother antivirus trick is using behavioral analysis to assess unknown viruses. Similarly, your antivirus suite has a long list of known malicious file signatures. The antivirus checks the properties of the file to make sure it isn't part of a malicious program. When a file is modified, your antivirus scans it to ensure those changes aren't harmful to your system. ![]() Your antivirus primarily works in the background of your system. Along with an antimalware suite, your antivirus is a core feature of your system security.īut what type of antivirus scan should you run? Are there differences between a Full scan, a Quick scan, and a Custom scan? Let's take a look at what happens when you hit that "Scan" button.īefore considering exactly what each antivirus scan type does, let's brush up on antivirus general role. Regularly scanning your system with an antivirus program is one of the easiest ways to keep your system secure.
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