It scans files and compares them against a database of known malware "signatures" (unique bits of code).
Antivirus is software that is designed to detect, protect against, and remove malware on a computer or mobile device. Malwarebytes [Solved] An antivirus software is an example of - Testbook Types Of Antiviruses Software
These are often "portable" (no installation required) and are used to clean a system that is already infected. It scans files and compares them against a
Specialized tools designed to detect and remove specific infections. Types Of Antiviruses Software