computer virus
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facilitating the spread of malicious code. Today’s viruses may also take advantage of network services such as the World Wide Web, e-mail, Instant Messaging, and file sharing systems to spread.
history
Creeper virus was first detected on ARPANET, the forerunner of the Internet in the early 1970s.
Creeper was an experimental self-replicating program written by Bob Thomas at BBN in 1971. Creeper used the ARPANET to infect DEC PDP-10 computers running the TENEX operating system. Creeper gained access via the ARPANET and copied itself to the remote system where the message, “I’m the creeper, catch me if you can!” was displayed. The Reaper program was created to delete Creeper.
A program called “Rother J” was the first computer virus to appear “in the wild” — that is, outside the single computer or lab where it was created. Written in 1981 by
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