The Brain Boot Sector Virus-The first developed computer virus

Sita Dahal

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The brain was a BOOT sector virus and was loaded onto the computer from an infected floppy disk when it was turned on without the user even knowing about it. The Pakistani Brain was a complex BOOT virus that was loaded onto the PC before the operating system was loaded.

Like Elk Cloner, it is also a boot virus, although its creator has little in common with Skrenta. Written by a 15-year-old in 1982, it is a boot sector virus that infects Apple II computers.

After Creeper, which was isolated in the research field, Elk Cloner became the first virus found in nature. It became known as the "brain", "boot sector of the brain" and even as the Pakistani flu, and was also the first virus for the IBM PC. The Moose Virus was the first computer virus in history to cause a massive epidemic.

Computer viruses have been around for a long time and are almost always spread through the Internet or its predecessors. The Spread of Modern Malware Descendants of earlier viruses is ubiquitous today. Today, we continue to deal with the annoying and often highly destructive antics of increasingly powerful computer viruses.

The Brain Until 1988, most viruses were just nuisances and virtually harmless. In the beginning, viruses were used in a variety of ways and were mostly developed by people in the IT industry.

Probably because Brain was such an early virus, there were few people interested in making variants of the virus. One problem was that Brain, like the Elk Cloner, could be ported to different floppy disks, even those that weren't direct copies of their medical software.

It was on one of the disks that Amjad replicated the brain virus, or "Pakistan Brain," the world's first computer virus infection. When a student transferred any infected floppy disk (Skrenta put a lot) to another computer and started the computer with the infected floppy disk, the computer was infected with a copy of Elk Cloner.

It remained inactive until March 6 of each year, and then overwritten the first hundred sectors on the storage devices with zeros, preventing the computer from starting. If the disk the program was on was counterfeit, the boot sector would be replaced with an infected boot sector, which would take up valuable kilobytes of memory, slow down the disk, and sometimes prevent the user from saving data.

The virus has stealth capabilities because whenever an infected sector is accessed, the access program will be redirected to the originally saved boot sector. The virus then saves the original boot sector and the six extension sectors of the extension containing the bulk of the virus to accessible disk sectors, which are then marked as bad. The virus slows down the drive and makes seven kilobytes of memory inaccessible to DOS.

It does not infect the hard drive, but it does infect any other floppy that is accessed while it is in memory. When an infected disk is launched, the virus infects the memory and occupies memory in the range of 3-7 kilobytes. Brain infects the IBM PC by replacing the floppy boot sector with a copy of the virus.

The virus infects the boot sector of media formatted in the File Allocation Table (FAT) file system. The first virus to attack MS-DOC, called Brain, was written in 1986 by brothers Basit Farooq Alvi and Amjad Farooq Alvi from Lahore, Punjab, Pakistan called "Brain" for short, the Buster Brothers were written by the two brothers. Then there were Amjad Farooq Alvi, 17 and 24 at the time.

The first computer virus for MS-DOS was Brain, released in 1986. The first computer virus named "Creeper system" was an experimental self-replicating virus released in 1971. some programmers wrote the first antivirus software. McAfee, then head of the computer company Interpath, studied the brain and wrote a program to combat it.

As a result, Brain encouraged IBM engineers to create the first mass-market antivirus software in 1987. However, within a few months, he opened the door to new variations and imitations that used the same logic as Amjad to infiltrate and harm computers widespread damage. Almost a year later, the first file virus for the IBM-compatible DOS Virdem appeared.

This is the first replicator capable of infecting multiple computer networks around the world. Another virus developed in December 1987 is called Christmas tree EXEC. Caribe was the first computer worm designed to infect mobile phones running the Symbian operating system.

In May 2000, the Loveletter virus was a computer worm that attacked tens of millions of Windows computers within hours of its release. Since then, many new viruses have been introduced and the trend is growing exponentially every year. It infected about 60 million computers and caused significant damage by overwriting important system files. Discovered in Jerusalem, a virus called "Jerusalem virus" infected and destroyed all executable files on computers after being activated every Friday the 13th.

Users find it on their PCs in Australia. It infected Apple DOS 3.3 and spread to other computers via floppy disk transfer. These first true "viruses" were based on floppy disks and spread from computer to computer by hand. When the internet was young and very young, the first viruses to spread outside of private networks went completely offline.

When the brothers created the virus, they were running a computer store in Lahore, Pakistan, and noticed that their customers were distributing illegal copies of the software they would write. The first macro virus that could infect multiple programs was known as Tristate. With the change of every aspect, it has become widespread and difficult to detect.

It spread through the (then) modern technology of removable media, floppy disks, and became the first major computer virus epidemic. A couple of programmers created a boot virus to protect their program from piracy, which you will learn more about below. However, the brain has unleashed a storm of boot sector viruses, also known as master boot record (MBR), that have continued to plague the sector for years. The brain does not infect the disk if the bit is set, unlike other viruses of the time, which did not pay attention to disk layout and therefore destroyed data stored on hard drives, treating them in the same way as floppy disks.

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