Full sort of VIRUS is Vital Information Resources Under Siege.
VIRUS is a program which reproduces itself. It may attach to other programs; it's going to create copies of itself. It may damage or corrupt data, change data, or degrade the performance of your system by utilising resources like memory or disc space .
The fact is that some people love to create problems for other people. Perhaps it's someone who has an axe to grind with business . Maybe it's someone who thinks the planet is getting too hooked in to the web for worldwide communications.
Of course, creating Computer viruses can also just be how to urge attention, albeit one has got to remain anonymous so as to avoid getting to jail. The sheer thrill of knowing that your creation disturbed systems all over the world may feed an ego that does not have much else going for it.
A Computer Virus may be characterized with one or more of the following four designations :-
- Boot Sector Computer Virus
- Master Boot Record (MBR) Computer Virus
- File Infector Computer Virus
- Macro Computer Virus
A bug (Computer Virus) which displays characteristics of quite one among these categories is understood as a multi - partite bug .
Boot Sector Computer Virus
Boot Sector Viruses infect the boot record on hard disk and theorically also on CD's and DVD's.
A boot sector virus doesn't got to be ready to successfully Boot the victims computer to infect it. Due to this, even non-bootable media can spread a boot sector virus.
If the infected computer boots successfully, the boot sector virus stays in memory and infects other storage media once they are written to by the infected computer.
Boot Sector Viruses have become less common as floppy disk has become rarer.
A boot sector virus doesn't got to be ready to successfully Boot the victims computer to infect it. Due to this, even non-bootable media can spread a boot sector virus.
If the infected computer boots successfully, the boot sector virus stays in memory and infects other storage media once they are written to by the infected computer.
Boot Sector Viruses have become less common as floppy disk has become rarer.
Master Boot Record Computer Virus
Master Boot Record (MBR) Viruses are very almost like Boot Sector Viruses, except that they infect the MBR (Master Boot Record) rather than the Boot Sector.
File Infector Computer Virus
File Infector Viruses infect those files which contain executables codes, such as .EXE and .COM files.
Some file infectors are memory resident. This means that the Virus will stay in memory and still infect other programs. Other file infector viruses only infect other files once they are executed.
Some file infectors are memory resident. This means that the Virus will stay in memory and still infect other programs. Other file infector viruses only infect other files once they are executed.
Macro Computer Virus
Macro viruses infect certain types of data files. Most macro viruses infect Microsoft Office files, like Word Documents, Excel Spreadsheets, PowerPoint Presentations and Access Databases.
Macro viruses typically use the visual basic macro language which is made into Microsoft Office applications.
Some macro viruses also share the characteristics of a computer worm, within the way during which they spread themselves across networks.
Macro viruses typically use the visual basic macro language which is made into Microsoft Office applications.
Some macro viruses also share the characteristics of a computer worm, within the way during which they spread themselves across networks.
Multi - Partite Computer Virus
Multi - partite viruses share the characteristics of quite one virus type. For example, a multi - partite bug might infect both the boot record and program files.
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