Types of Malware

Malware Malicious software created to cause harm to a computer, server, or computer network.

1. Viruses
   • A self-replicating program that spreads and infects the system when executed.
   • Example: Blaster.
2. Worms
   • A program that replicates and spreads through networks without human interaction.
   • Example: Morris Worm.
3. Trojans
   • Appears as legitimate software, deceiving users into executing it to perform malicious actions.
   • Example: Emotet.
4. Ransomware
   • Encrypts the victim's data and demands a ransom for the decryption key.
   • Example: CryptoLocker.
5. Spyware
   • Secretly monitors and collects user data without their knowledge.
   • Example: Spybot.
6. Adware
   • Displays unwanted and intrusive advertisements.
   • Example: Fireball.
7. Rootkits
   • Allows hackers remote unauthorized access to a computer.
   • Example: Zacinlo.
8. Keyloggers
   • Records user keystrokes.
   • Example: SpyEye.