Types of computer virus 1
Computer viruses come in various forms, each with its own unique characteristics and methods of infecting computer systems. Understanding the different types of viruses can help users protect their systems and data from potential threats.
Here are some common types of computer viruses:
File Infector Virus: This type of virus infects executable files, such as .exe or .dll files. When an infected file is executed, the virus code is activated and can spread to other files on the system, potentially causing further damage.
Boot Sector Virus: Boot sector viruses infect the boot sector of a computer's hard drive or floppy disk. They typically spread when the infected system is booted from the infected disk. Boot sector viruses were more prevalent in the past when booting from floppy disks was common.
Macro Virus: Macro viruses infect files that support macros, such as Microsoft Word or Excel documents. They embed themselves within the macros and execute when the infected file is opened. Macro viruses can spread through email attachments or shared documents.
Polymorphic Virus: Polymorphic viruses are designed to change their code or signature to evade detection by antivirus software. They use encryption or obfuscation techniques, making it challenging to identify and remove them effectively.