What was the first computer virus in the DOS system?
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The first computer virus in the DOS system is widely recognized as the “Creeper” virus. It was created in 1971 by Bob Thomas at BBN Technologies as an experimental self-replicating program.
Here’s a brief overview of Creeper:
To counter Creeper, the first antivirus software, called “Reaper”, was developed. Reaper was designed to detect and delete Creeper from infected systems, essentially becoming the first known antivirus program.
The first computer virus for the DOS system was called “Brain.” It was created in 1986 by two brothers, Basit and Amjad Farooq Alvi, from Lahore, Pakistan. The Brain virus was a boot sector virus, which means it infected the boot sector of storage media like floppy disks. When an infected disk was used to boot a computer, the virus would load into memory and infect any other floppy disks used on that computer. The Brain virus is considered the first known virus for the DOS operating system.