Computer Basics - Antivirus

What is an Antivirus?

An antivirus is a type of software program designed to detect, prevent, and remove malicious software (malware) such as viruses, worms, trojans, spyware, and ransomware from computers or other digital devices.

Types of Antivirus

  1. Standalone Antivirus

    • Works only for detecting and removing viruses.

    • Example: ClamAV.

  2. Internet Security Suites

    • Provide broader protection, including antivirus, firewall, spam filters, and parental controls.

    • Example: Kaspersky Internet Security.

  3. Cloud-Based Antivirus

    • Uses cloud servers to scan and detect malware, reducing the load on the local device.

    • Example: Panda Cloud Antivirus.

  4. Real-Time Antivirus

    • Monitors the system continuously and blocks threats as they occur.

    • Example: Windows Defender (Microsoft Defender).

  5. Next-Gen/AI-Powered Antivirus

    • Uses artificial intelligence and machine learning to detect unknown or new malware.

    • Example: Cylance Smart Antivirus.

Uses of Antivirus

  • Detects and removes malware.

  • Provides real-time protection against threats.

  • Prevents identity theft and phishing attacks.

  • Protects personal files, passwords, and financial data.

  • Improves system performance by removing malicious software.

Examples of Antivirus Software

  • Avast Antivirus

  • Norton Antivirus

  • McAfee Antivirus

  • Kaspersky Antivirus

  • Bitdefender Antivirus

  • Microsoft Defender