Any one even those who have small amount of experience of computer must be known of something which is named as virus. Even when you don’t even know what the thing is and how it works, you come up with fear. But you need to know what virus is and how does it works?
A virus is a computer program say, software which is designed to trespass your computer system and temper with the system, with you letting you known. As soon as you open a computer program containing virus, the infected files started replicating, thus destroying whole of the system. It is capable of replicating and transmitting itself to other computers which have a sort of networking with your computer.
Virus appeared in late 1980s with advent of personal computers and electronic bulletin board. At that time virus were stored in floppy disks which were then used for storing data, operating system and word processing, as these floppy disks moved to one person or the other, viruses traveled.
Where do these malicious things come from? Every virus has its own origin with a specific aim in the mind of its creator. No matter how malicious these viruses are their builders do consider their actions justified. For some creators, a killer virus is as a huge technical challenge as climbing mountain. Other considers virus creation as a way for expressing themselves. Most of the time annoyed persons do get in to virus building, to take back their revenge for perceived injustice. It is so unfair but still some businesses do use this as a mean of weakening their employee. Some virus builders have built them to leave their impression on the cyber space history.
Viruses today are more damaging as compared to ones as were confronted in prior decades. They are sent through emails as attachments, placed at spam sites, are found at corrupt websites and links, through spread sheets and infected disks. But the superhighway for viruses today is internet.
Some most damaging viruses like Melissa virus, start replicating it to the first fifty contacts in your email address book. As soon as your receiver opens u your email he had his system corrupt and virus replicates to other fifty of his contact book. Virus damages computer system with minor delays and sometimes with massive destruction of whole system. This price for companies is far greater, a downed website cause a firm more then millions of dollars per day.
How a virus does infect your computer? Most of the time, you get your system infected by virus through your online activity. These viruses sometimes attack to infect system’s boot sector, some do infect executable program files and it travels to memory and replicates itself. Macro virus being common sort attacks data files containing macro.
When a computer gets infected it shows some warning signs. Most time when your system is infected of some minor virus then your may encounter:
- strange messages
- images
- noise or music
- It can make memory unworkable or name changes are noticeable.
- Missing programs and file malfunctions
Clean your computer with antivirus software. Consider hiring a trusted expert to help you out. If you don’t see any hope then last resort is formatting your hard drive and reinstalling operating system.
