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What is the work of boot sector?
A boot sector is the sector of a persistent data storage device (e.g., hard disk, floppy disk, optical disc, etc.) which contains machine code to be loaded into random-access memory (RAM) and then executed by a computer system’s built-in firmware (e.g., the BIOS).
Which is the first boot sector virus?
Elk Cloner, written in 1982 by then-15-year-old Rich Skrenta of Pittsburgh, was a boot-sector virus designed to infect Apply II computers and was the first to be detected in the wild. Brain, created in Pakistan in 1986, was the first PC virus to be found in the wild.
What was the first multipartite virus?
Ghostball was the first multipartite virus discovered. The virus was discovered in October 1989, by Friðrik Skúlason. The virus is capable of infecting both executable . COM-files and boot sectors.
What is the first boot sector virus?
What is the status of viruses in classification?
Viruses are classified into four groups based on shape: filamentous, isometric (or icosahedral), enveloped, and head and tail. Many viruses attach to their host cells to facilitate penetration of the cell membrane, allowing their replication inside the cell.
What is the definition of a boot sector virus?
What is a Boot Sector Virus? What is a Boot Sector Virus? – Definition. A boot sector virus is a type of virus that infects the boot sector of floppy disks or the Master Boot Record (MBR) of hard disks (some infect the boot sector of the hard disk instead of the MBR). The infected code runs when the system is booted from an infected disk,
Can a boot sector virus spread to other floppy disks?
While boot sector viruses infect at a BIOS level, they use DOS commands to spread to other floppy disks. For this reason, they started to fade from the scene after the appearance of Windows 95 (which made little use of DOS instructions).
How can I protect my computer from boot sector viruses?
The following suggestions will help keep your systems and data safe: The best protection against boot sector viruses is the same as against viruses in general: a good antivirus program with up-to-date virus definitions. Antivirus programs do two key things: Scan for and remove viruses in files on disks.
How does Kaspersky prevent the spread of boot virus?
Improvements in BIOS architecture have reduced the spread of boot viruses by including an option to prevent any modification to the first sector of a computer’s hard drive. Removing a boot sector virus can be difficult because it may encrypt the boot sector.