How virus created

1. How viruses are created and how
viruses are spread

2. Virus can be spread when a user
opens an email attachment, rns an
executable file, visits an infected
websites or views an infected
websites advertisement, known as
malvertising.

3. COMPUTER VIRUS
 A computer virus is malicious code that replicates by
copying itself to another program, computer boot sector
or document and changes how computer works. A virus
spreads between systems after some type of human
intervention.
 Viruses replicate by creating their own files on an
infected system, attaching themselves to a legitimate
program, infecting a computer’s boot process or infecting
user documents.

4.  The virus requires someone to knowingly or unknowingly
spreads the infection. In constrast, a computer worm is
standalone programming that does not require human
interaction to spread.
 Viruses and worms are two examples of malware, a
broad category that includes any type of malicious code.