What are Parasitic viruses?
Parasitic viruses, also known as file viruses, spread by attaching themselves to programs. When a program infected with parasitic virus is started, the virus code is run. To hide itself, the virus then passes control back to the original program. The operating system sees the virus as part of the program you were trying to run and give it the same rights. These rights allow the virus to copy itself, install itself in memory or make changes on your computer. Some anti-virus programs can remove parasitic viruses.
