Some basics about virus:What is a VIRUS?
It is actually a program, created by people who have knowledge to write software
programs. In proper terms, it is called an ‘executable program’, with bad
Viruses are a type of malware, i.e., it is malicious software.
How does it work? (Or, how does it make out lives
A come attached with another program, and once it is in our system and we execute
our program- we run the virus too!
The virus replicates itself; that is multiplies when has attached itself to a
computer through an infected program.
So, suppose we download an mp3 song from some suspicious looking website, and we
do not have anti-virus software on our PC, in such a case a virus may get downloaded
along with the mp3.
Once, the virus is in our computer, it then starts making copies of itself on our
computer. So, you can imagine, once it replicates, it must need space, thus a virus
uses up the hard disk space and that makes our PC/system slow and makes it hang
What other damages does it do? (-apart from crashing
our PC and frustrating us?)
Depending on what the intention of the person programming the virus was, a virus
can do many different types of damages, like :
(i) modification of data (Transformers movie anyone?)
(ii) files maybe overwritten with false information
(iii) files maybe damaged, so you can not open them anymore or work on them
(iv) it may even wipe out an entire drive!
(v) it may make your system to re-boot again and again
(vi) high threat viruses which target databases of big organizations and MNCs may
even leak top security information of the companies…
A Virus can be programmed to do anything, so its threat can be anything; it’s a
creepy virtual world out there!