10 viruses of the computer and their solutions

 Here are 10 types of computer viruses, their definitions, and potential solutions for dealing with them:

1. File Infector Virus

Definition: This type of virus attaches itself to executable files (e.g., .exe, .com) and activates when the infected file is executed.

Solution: Use antivirus software to scan and remove the virus, and avoid opening unknown or suspicious files.

2. Macro Virus

Definition: Targets the macros in documents (such as Word or Excel files) and activates when the infected document is opened.

Solution: Disable macros in your software, and regularly update your antivirus program to detect macro viruses.

3. Boot Sector Virus

Definition: Infects the master boot record (MBR) of a hard drive or removable media and activates during system boot-up.

Solution: Use antivirus tools to repair the MBR, and avoid using untrusted USB drives or bootable media.

4. Polymorphic Virus

Definition: Changes its code every time it infects a system, making it harder to detect using signature-based antivirus programs.

Solution: Use behavior-based detection methods and update antivirus software regularly.

5. Metamorphic Virus

Definition: Similar to polymorphic viruses but goes a step further by rewriting its own code with each infection, making it even harder to detect.

Solution: Implement heuristic scanning techniques and regular software updates to stay protected.

6. Trojan Horse

Definition: A malicious program that appears to be legitimate software, but once executed, it compromises the system.

Solution: Be cautious when downloading software from untrusted sources and use antivirus software to detect suspicious behavior.

7. Worm

Definition: A standalone malicious program that spreads itself across networks and systems without requiring user interaction.

Solution: Ensure firewalls and network security are enabled, and regularly update operating systems to patch vulnerabilities.

8. Ransomware

Definition: Encrypts a user's files and demands payment (ransom) for the decryption key.

Solution: Back up important data regularly, use strong security software, and avoid paying ransom. Keep your operating system and software up-to-date.

9. Adware

Definition: Displays unwanted ads on your computer, often bundled with free software.

Solution: Use ad-blocking software and avoid downloading programs from untrustworthy sources.

10. Rootkit

Definition: A set of tools designed to gain unauthorized access to a system and maintain control without detection.

Solution: Use specialized rootkit scanners and keep your system up to date with security patches.

For general prevention, always use reliable antivirus software, avoid clicking on suspicious links, and ensure your operating system and software are regularly updated.