What is Virus?
Virus is a program code that cannot work without being inserted into another program.Virus can cause can cause destruction's,from displaying humorous messages, to destroy contents of hard disks etc.
Example:
1)melissa -designed to attack files on a single PC.
2)CIH or chernobyl virus.
3)W32/explorezip.worm-internet worm designed to infect PCs on n/w.
-will delete .c,.cpp,.asm,.doc,.xls &.ppt files from local hard drives.
How the Virus Enter?
viruses enter through e-mails,file attachments like in the above case.Also when we borrow copies of software from others.we are at risk of infecting our PC.Viruses copy itself to computers OS.
How to avoid them?
In order to avoid virus risks,use the software after checking for viruses.
use anti virus programs like NORTON ANTI VIRUS,AVG etc.
If u receive email with subject line "imp msg from ----" be suspicious.If msg comes with word document attached called "list.doc",you have been likely been sent word/Melissa macro virus or worm.
|
No responses found. Be the first to respond and make money from revenue sharing program.
|