malware

malware

1. viruses

   • A virus will often be designed to delete or corrupt data.
   • This is a piece of code that is designed to replicate itself throughout the computer or network

2. Worm

   • This behaves just like a virus, but does not necessarily harm files. Instead, it tries to copy itself so many times that the whole system runs out of resources and crashes.

3. Trojan

   • A trojan appears to be a harmless application - a downloaded game for example. You play the game, but meanwhile it is running in the background carrying out its real intent - maybe letting someone else access to your computer.

4. other malware

   • Spyware
     • Spyware stays hidden out of view and is designed to spy on your computer, looking for personal information, passwords and so on.
   • Ransomware
     • Ransomware encrypts critical files and data, making them unusable. Eventually it presents the user with a ransom, demanding money be sent to the attackers to unlock the system.
   • Scareware
     • Scareware will cause a pop-up to appear on your screen which will say something like 'Your computer has a virus.In reality, you do not actually have a virus. The scareware it trying to frighten you into purchasing and downloading the software which itself may actually contain malware.
   • Rootkits
     • Rootkits give other people permissions and access to your computer, allowing them to take it over remotely and do whatever they like. It is designed to run even before the operating system itself is booted up and it continues to stay active in the background while you are using the computer.