“Why Understanding All The Ins And Outs Of Avoiding Viruses Is Crucial!”
Computer viruses are unwanted computer programs that can invade your hard drive and cause many different types of damage. Usually viruses are created when someone writes a computer program and embeds harmful software within that program. As soon as other people begin downloading that infected program onto their computers, the virus finds it's way in and negatively alters information stored in the computers. Not one computer virus is alike, there are millions of diverse programs that cause varying amounts of damage to a computer.
Here are some of the different types of viruses:
* Trojan Horse
* Macro Virus
* Rootkit Virus
* Bootsector Virus
* Logic Bombs
* Memory Resident Virus
* Multipartite Virus
Symptoms of virus infection:
* Your computer has unusual activity (e.g. programs crashing a lot or running slowly).
* Messages or images come up unexpectedly.
* A program may start up unexpectedly.
* Your firewall informs that a certain application is trying to connect to the Internet.
* Your friends say that they get emails from you but you did not send any to them.
* You realise that folders and files are removed or changed.
* You find that there's an access to your hard disk (one of the small light is blinking) even though there are no programs running.
* Your web browser has abnormal indications, for example it opens an unknown web page or you cannot close the browser tabs.
* Advertising pages pop up, desktop wallpaper changes.
* Exe files occur and have the same names as the folders.
* On the right corner of your computer, there is a small symbol written "Your computer is infected" or "Virus Alert" etc.
* When you open an USB thumb drive, unknown files such as Autorun.inf, New Folder.exe etc. appear.
* Cannot press Control + Alt + Delete (Task Manager) and you are warned that Administrator banned it.
* Folder Options disappears.
* Your computer keeps restarting when you try to shut it down.
* You cannot log in your Windows account with the right logon details.
What to do when infected:
* Make sure that your Antivirus software is the latest update. If necessary, download the update from another computer and update it manually.
* Disconnect from the Internet or Local Area Network (LAN).
* If Windows is not running, start it in Safe Mode (when turning on your computer, keep pressing F8 as soon as the computer starts running, then choose 'Safe Mode' from the Menu).
* Run a full Anti-Virus scan.
* If you find a bad program, follow the instructions of your Internet Security Software Supplier. Good Security software will provide with options such as disabling infected files, isolating possibly infected files, Worms and Trojans removal.
* If you do not have any important files on your computer disks, format the disk and then re-install your Windows and applications. This is quite an extreme and lengthy process and it's recommended to back up your computer settings prior to commencing. When finished, do not open on any ancillary disks (USB, Thumb drives etc.) yet, install the Antivirus software, do a full scan, find Autorun.inf files and remove them. Restart your computer after that.
* If the Anti-Virus software does not find anything, your computer is possibly not infected. Check your hardware and software that is installed on your computer meets the hardware specifications of the Operating System. Delete unnecessary or unwanted programs to save resources and ensure you have updated your Windows OS via Windows Update.
And much, much more…