Tip & How-To about Computers & Internet

What is a Virus and how do I know if I have one ?

There are some obvious symptoms that your computer will develop when it gets infected with a virus. But the first thing I have to mention is that if you had a decent antivirus program installed on your computer you would not have a problem. The virus programs now days are fantastic in crushing any chances of a viruses infecting your computer.

What is a virus?
A virus is a small program that gets into your computer undetected in order to cause havoc. This small software program has either been developed because the author enjoys causing disasters for other people or sometimes for monetary gains. Sometimes a virus is packaged in a file that is called a trojan virus. It is disguised as something else, and once it has gained access to your computer it then releases its intent.

How does a virus get onto my computer?
The people that develop these viruses are constantly finding new ways to infiltrate your computer. When one door shuts, another one opens for them. However the most common ways to get a virus on your computer is through the internet. You might download a file that contains a virus, or maybe you might open an email that has one attached to it. Sometimes even visiting a bad website can infect your computer. The worst one of all, however, is when people download illegal cracked software. This software has usually been taken apart and repackaged with a few extras attached. Maybe you download music or videos from the internet. How do you know you are actually downloading the file you intended to. The file may be named to deceive you, and once you open it you will release the virus.

How do I know if I have a virus or not?
If your computer has been infected with a virus you will quickly see odd signs that it exists. Weird things start happening that you cannot explain. Files might move around, odd error messages may appear, programs might start to fail. For example if your virus scanner program stops working then it could have been disabled by a virus. With all this action taking place in the background your computer will also start to run slow and seem like it is busy all the time.
When browsing the internet you might find that you will not able to visits the pages that you choose. You will be redirected to different websites. You computer might also be sending emails to everyone in your contact list without you knowing.

What can a virus do to my computer hardware components?
People think that a virus simply attacks the file systems of your computer, however this is not true. Some viruses are designed to damaged computer hardware components until they are ruined completely.
Many people will argue that a virus only infects software, however all hardware is controlled by various types of software. Infact the entire computer is controlled by BIOS which is software. BIOS controls the temperature of the motherboard. What if a viruses only purpose was to change the temperature control on your motherboard. The motherboard would overheat and fry itself.
In the old days viruses used to be developed to set the read speed of a floppy disk drive to speeds beyond its capability. The Floppy disk drive would overheat and fry from being overworked. Now days Windows Vista has a service called Superfetch that searches your hard drive, finds out what you use the most, and makes it available for you.. If you made a virus to control Superfetch, we could have a serious problem. Most Vista users already have Superfetch disabled on their computer. A virus could enable it, tell it all files are important, keep it searching non stop, and fry your hard drive that way. Now I can here someone saying "yeah right, not with all the security we have around today". Well you should never underestimate these guys who develop viruses. They can work around anything.

What should I do if I get a virus?
If you suspect that your computer has a virus, scan your computer asap with an antivirus program. If you do not have one or yours is not working, download another one, or get a free scan using the free online virus scanners, such as :-
Symantec Security Check :-
http://security.norton.com/sscv6/WelcomePage.asp
or
Kaspersky lab :-
http://www.kaspersky.com/scanforvirus

There is no guarantee that these free scanners will cure your computer but they might just confirm the fact that you actually have a virus.
If you find viruses but cannot remove them you will need to take your computer to a professional before you lose everything. Another option is to format your computer which means you loose all the files on it and re-install a fresh copy of the operating system. You can backup your files first, but please be aware that they might be infected with a virus also.
If you have scanned your computer, found viruses, and successfully deleted them, then now is the time to buy a decent program that will stop this from happening again.
Do not continue to use the computer without taking action because the longer you leave it the further the virus can spread.
What file types commonly contain viruses when you download them?
Lets face it, downloading is a dangerous business, especially when you have important files stored on your computer. Any file you download can contain a virus. My rule for downloading is to ask myself "Do I know and trust this website I am about to download from?"

Here are a few examples of common files that could contain viruses :-
EXE FILE: If you download a program or anything that requires an install file then it will be an .exe file. When you press on it to install to your computer you could be releasing a virus.
ZIP FILE: People download zip files from the internet that contain any other file type and you will not see it's contents until you open it. A zip file might have an exe file in it.
SCR FILE: Free screensavers for your computer. They always have something bad in them. Sometimes adware or viruses.
DOC FILE: A Microsoft word document can contain macros and small scripts that are viruses.

If you haven't got antivirus software installed on your computer, then refer to : http://support.microsoft.com/kb/49500 for Microsoft recommended antivirus softwares.

REMEMBER : PREVENTION IS BETTER THAN CURE

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2 Answers

a so called security co.says the computer is being attacked by a virus and thet ask for 80 dollars to remove it ( I t hink this company is related to the Somali pirates) meanwhile it is not possible to do anything on the computer as they block any attempt.Any suggestions??? A12NFS


Restart and constantly press f8 until a menu comes up.
choose safemode and login as normal.
run anti virus and anti spyware scans and let it remove what it finds.
What anti virus and anti spyware programs do you have on your computer?

Follow the instructions from the thread below.
It has Step-By-Step instructions.

http://www.computing.net/answers/security/infected-start-here/22987.html



Nov 21, 2010 | Acer Computers & Internet

3 Answers

help reemoving antivirus 2009


Generall the symptoms of spywares can be located on 2 places:
1. annoying pop-ups from the Right side bottom of screen next to the time, stating that you have certain number of
spywares, virus or errors. E.g of known spywares are spyware gaurd antivirus-2008,2009,2010, Vista antivirus or MS
pro and the list has no end..
2. your browser is giving you alot of annoying advertisements and spyware messages.
As these infections cannot be removed by any known security softwares some tools mentioned below can resolve these
issues with 97% success rate.
How to run these tools is pretty easy, please follow the steps I have mentioned below as per the tools.

Spyware Problems:
Tool No 1: SmitfraudFix: http://tinyurl.com/27wn7w

Download this tool from the mentioned link and Click RUN.. then click Open.. it start loading the tool...
Press any key to continue... on the screen you will have 5 options... Press option 2.. for registry cleaning press
Y if it prompts you and than option 3 & 5.. follow on screen easy instructions. Restart if it prompts you to do so.
Tool No 2: Malaware Bytes: http://tinyurl.com/6dtjrl
Download this tool from the mentioned above link and Click RUN, than Click Open.. Setup will install it.. It will
givee you option to scan (Quick or Complete).. Choose QUICK scan... once the scan is complete click show results..
Remove all infections and restart the PC.

Tool No 3: Hijackthis: http://tinyurl.com/25z5fa

This tool is made to specially take care of infections from IE. Run this tool from the link and Install.. Click do
a system scan only... Check all the options start with ...A)Toolbar B)BHO C)DPF D)Extras
PLEASE DO NOT CHECK ANYOTHER ITEMS UNLESS YOU ARE SURE ABOUT THE INFECTED FILE NAME.
RESTART YOUR COMPUTER...
RUNNING THESE TOOLS WILL TAKE CARE OF ALL THE SPYWARE OR VIRUS INFECTIONS.
Disclaimer: All these tools are thirdparty tools developed for helping people to get rid of spyware & viruses
effectively & Free. Nobody is responsible for any data loss.

Feb 03, 2009 | Microsoft Windows Vista Ultimate Edition

1 Answer

Antivirus 2012 on my vista computer


Generall the symptoms of spywares can be located on 2 places:
1. annoying pop-ups from the Right side bottom of screen next to the time, stating that you have certain number of
spywares, virus or errors. E.g of known spywares are spyware gaurd antivirus-2008,2009,2010, Vista antivirus or MS
pro and the list has no end..
2. your browser is giving you alot of annoying advertisements and spyware messages.
As these infections cannot be removed by any known security softwares some tools mentioned below can resolve these
issues with 97% success rate.
How to run these tools is pretty easy, please follow the steps I have mentioned below as per the tools.

Spyware Problems:
Tool No 1: SmitfraudFix: http://tinyurl.com/27wn7w

Download this tool from the mentioned link and Click RUN.. then click Open.. it start loading the tool...
Press any key to continue... on the screen you will have 5 options... Press option 2.. for registry cleaning press
Y if it prompts you and than option 3 & 5.. follow on screen easy instructions. Restart if it prompts you to do so.
Tool No 2: Malaware Bytes: http://tinyurl.com/6dtjrl
Download this tool from the mentioned above link and Click RUN, than Click Open.. Setup will install it.. It will
givee you option to scan (Quick or Complete).. Choose QUICK scan... once the scan is complete click show results..
Remove all infections and restart the PC.

Tool No 3: Hijackthis: http://tinyurl.com/25z5fa

This tool is made to specially take care of infections from IE. Run this tool from the link and Install.. Click do
a system scan only... Check all the options start with ...A)Toolbar B)BHO C)DPF D)Extras
PLEASE DO NOT CHECK ANYOTHER ITEMS UNLESS YOU ARE SURE ABOUT THE INFECTED FILE NAME.
RESTART YOUR COMPUTER...
RUNNING THESE TOOLS WILL TAKE CARE OF ALL THE SPYWARE OR VIRUS INFECTIONS.
Disclaimer: All these tools are thirdparty tools developed for helping people to get rid of spyware & viruses
effectively & Free. Nobody is responsible for any data loss.

Feb 03, 2009 | Microsoft Windows Vista Home Premium with...

1 Answer

My computer infected with a virus called 'intervalhehehe'...


I'd not recommend you tri to get rid of it yourself since there might be different instances of the files lying around in different locations of your hard drive. Try with the free program you mentioned or check out

www.nanoscan.com

Dec 30, 2008 | Computers & Internet

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