Definition
An antivirus scanner is a security tool that detects viruses on a device. It is rarely a standalone app, as it is often packaged within antivirus software that also includes additional tools for quarantining and removing detected viruses.
How Antivirus Scanners Work
Antivirus scanners inspect a file’s digital signature against a list of known malware signatures. Once they detect a match, they flag the file as malicious and inform the user to take further action.
Types of Antivirus Scans
- Full scan: This scans the entire system, including the hard drive, RAM, and backups, and takes several hours to complete. However, it might be unable to check some files with restricted access.
- Custom scan: A custom scan only checks the files and folders you specify. This is an excellent way to ensure that newly installed and downloaded apps are safe to execute.
- Quick scan: A quick scan (smart scan) checks file locations susceptible to malware, such as the download folder and recently installed apps. While a quick scan is significantly faster than a full scan, it doesn’t detect malware deeply embedded within the system.
Origin of Antivirus Scanner
Antivirus scanners originate in the early days of computing, during the internet’s formative years. Back then, viruses were quite simple and mostly harmless, often created as pranks.
The first antivirus software (Vienna) was created in 1987 to combat the brain virus. Since then, antivirus scanners have continually evolved, always working to outpace cybercriminals.
Application of Antivirus Scanner
Antivirus scanners secure your digital life by actively scanning for suspicious files and programs that might infiltrate your system. In addition to scanning your files, they offer real-time protection when browsing the internet, protecting you from potentially malicious websites and downloads.
Moreover, an antivirus scanner will ensure your email attachments are malware-free, securing your personal and professional communications.
Benefits of Antivirus Scanner
- Protection against malware: An antivirus scanner offers a great defense against malware, protecting your system from potential harm.
- Peace of mind: Knowing that your sensitive data, personal information, and digital identity are secure will give you peace of mind.
- Regular updates: Most antivirus software programs are regularly updated to safeguard against emerging threats, ensuring your protection remains formidable.
- Improved performance: Contrary to concerns that antivirus software can slow down your device, modern applications are efficient, ensuring your system performs optimally.
- Firewall integration: Some antivirus scanners provide firewall protection, improving your defense against online threats.