"Computer Viruses: Kya Hote Hain Aur Kaise Bachayen"

 

🦠 Computer Viruses: Kya Hote Hain Aur Kaise Bachayen

💻 Computer Virus Kya Hota Hai?

Computer virus ek aisa malicious program hai jo aapke system me ghus kar normal functioning ko disturb karta hai.
Ye apne aap ko duplicate karke dusre files, programs ya devices me spread karta hai.
Virus ka main goal hota hai — data churaana, system slow karna, ya damage karna.

📌 Computer Viruses ke Common Types

1.File Infector Virus

Normal files ke sath attach ho kar spread hota hai.

Example: CIH (Chernobyl) virus.

2.Macro Virus

Microsoft Word/Excel documents me code inject karta hai.
Example: Melissa virus.

3.Boot Sector Virus

Computer ke booting process ko target karta hai.
Example: Michelangelo virus.

4.Trojan Horse

Useful program ban kar system me entry leta hai.
Example: Zeus Trojan.

5.Ransomware

Files ko encrypt karke paise maangta hai unlock karne ke liye.
Example: WannaCry.

⚠️ Computer Virus Aane ke Common Reasons

1.Untrusted websites se files download karna
2.Fake email attachments open karna
3.Cracked software install karna
4.USB devices bina scan kiye connect karna

5.Weak antivirus ya outdated OS use karna

🛡️ Computer Viruses se Bachne ke Tarike

1.Strong Antivirus Install Karein

Example: Quick Heal, Kaspersky, Bitdefender, Windows Defender.

2.Operating System & Software Update Rakhein

Security patches viruses ko block karte hain.

3.Unknown Emails/Links Avoid Karein

Phishing emails me virus attach hota hai.

4.USB & External Devices Scan Karein

Auto-run disable karen.

5.Strong Passwords Use Karein

Data breach ka risk kam hota hai.

6.Backup Maintain Karein

Important files ka regular backup rakhein.