How do antivirus solutions primarily function?

Antivirus solutions primarily function by scanning for known malware signatures, which are specific patterns or code found in malicious software. This method enables the antivirus software to identify, quarantine, and remove threats effectively. The scanning process typically involves comparing files on a system against a database of recognized malware signatures that are regularly updated to include the latest threats. This proactive approach is critical for protecting systems from potential infections and ensuring that harmful software is addressed promptly.

In contrast, options like disabling internet access or managing network firewalls do not represent the core functionality of antivirus solutions. While these actions might be part of a broader security strategy, they are not the primary method through which antivirus programs operate. Reviewing employee behavior online is more related to monitoring and auditing rather than the core functionality of detecting and removing malware.