Antivirus Software Solutions
Antivirus Software Solutions
There can be so many problems of the viruses for the
computers which can disrupt the productivity and can cause millions of
dollars damage. They can also show that the human being have become sophisticates
and interconnected. There are many viruses in the market causing damage to
the computers as well as businesses. The Mydoom worm had affected quarter
million computers in January 2004. The Melissa was also very powerful
software due forced Microsoft and many large companies to turn off their
email systems in 1999. The I LOVE YOU virus also affected many computers in
2000. Here you can find best
free antivirus software
reviews.
Storm worm affected about 50 million computers in the world which is really
devastating considering that the viruses are simple. You can find many
different types of infections for the computers which are as follows.
A virus is a small software or program which is designed to damage computers.
It can spread in many ways like it can come in the form of the spreadsheet
and whenever you open the spreadsheet, the virus will reproduce itself which
in the end will cause havoc.
The virus can easily be sent from on computer to another in the email
attachments. These viruses can replicate them when these attachments are
opened. Sometimes these viruses can spread even without opening or clicking.
These are very dangerous email.
Trojan horse is also another simple computer program which can cause damage
for the computer when it runs. These virus programs have no way to replicate
automatically.
The worms are small programs which can use networks and security holes to
replicate itself. The copy of the worms will scan the network for another
computer which has specific security hole from where it can make its copy to
new computer with security hole.
The Melissa virus spread through Word documents which are sent via email.
This virus might be uploaded in the newsgroup and when users download the
document, it will attack the computer. This virus will then be sent through
email which might be sent to the first 50 person in the address book. This
email contains person’s names with friendly note but actually it is a virus.
In this way it will create new 50 messages from the computer of the
recipient. In this ways it can spread very quickly and it has caused many
large companies to shut down their email systems.
The I LOVE YOU virus contained specific code as an attachment which will
launch itself when users click it. Then copies of this code will be sent to
the persons in the address book and will corrupt the files in the user’s
computer. It is a simple virus which can spread like Trojan horse through
email.
The Melissa virus was developed by using the programming language VBA used
in the Microsoft Word. This language can be used to modify files and send
email messages. There are very useful features but it also has auto execute
feature as well. The program will be inserted into document which will run
when the document is opened. The users will be infected by the Melissa virus
if he opens the documents. This virus will be sent to the 50 email addresses
and it will then infect main file NORMAL.DOT.
There is also feature of Macro virus protection in the Microsoft application
which is built in. You can disable the auto execute feature by tuning on
Macro Virus Protection. A dialogue will appear warning the users when
document tries to auto execute viral code. Most of the users ignore the
dialog when they see it of macros. The other users might also turn off the
protection mechanism so in this way Melissa virus can spread very quickly
despite of security. The I LOVE YOU spreads only when users click on it.