What is a Computer Virus?
Today everyone know the word VIRUS because computer viruses currently cause billions of dollars’ worth of economic damage each year,due to causing system failure, wasting computer resources, corrupting data, increasing maintenance costs, etc
A computer virus is a type of malicious software program (“malware”) that, when executed, replicates itself by modifying other computer programs and inserting its own code. When this replication succeeds, the affected areas are then said to be “infected” with a computer virus. A virus depends on a host program to spread itself.
The First Computer Virus
The Creeper virus was first Virus born in computer world and detected on ARPANET, the forerunner of the Internet, in the early 1970s. The Virus Creeper was an experimental self-replicating program written by Bob Thomas at BBN Technologies in 1971. Creeper used the ARPANET to infect DEC PDP-10 computers running the TENEX operating system. The Virus Creeper gained access via the ARPANET and copied itself to the remote system where the below message was displayed,
“I’m the creeper, catch me if you can!”.
It was the self replicating Virus.
Which Program Was Used To Delete Creeper Virus?
The Reaper program was created to delete Creeper.
The Misconception About The First Virus:
“The first IBM PC virus in the “wild” was a boot sector virus dubbed (c) Brain, created in 1986 by the Farooq Alvi Brothers in Lahore, Pakistan, reportedly to deter unauthorized copying of the software they had written.”
The above paragraph is misconception that the first virus is created by a Pakistani , but it is not true because it was 1986 but the virus is create first time in 1970.