How can a virus damage the hardware

By | September 9th, 2009

Virus can easily corrupt the software and you probably have to reinstall the driver in question or the whole operating system, not to mention the data it can erase. There’s been much debate on whether a virus can damage your hardware or not. I say, with 100% certainty that it can. That doesn’t mean that every virus is capable of doing it, but a virus is capable of damaging hardware like hard drive, DVD drive, processor, motherboard, etc.

How does a virus damage the hardware

Hardware is controlled by software (drivers and operating system), virus is a software and if somehow it replace the controlling software, it can control the hardware. Once a virus is in a position of controlling the hardware, it can damage it for example:

1. Carrying a certain action many times like writing-rewriting on hard drive millions of time to generate bad cluster in it.

2. Controlling the speeds like slowing down the processor’s fan speed while overclocking the processor to burn it.

3. Erase the firmware of devices and BIOS of motherboard.

4. A virus can control the graphics and send abnormal signals to the LCD monitor damaging it permanently.

A virus specially designed to perform a special malfunction in hardware without being detected by any anti virus can do a damage of millions before being detected. History is full of such examples.

computer virus How can a virus damage the hardware

Viruses that actually damaged the hardware

I have compiled some examples from the past where a virus damaged the hardware directly or indirectly. Motherboards, drivers and OS are smarter and efficient nowadays, but so do the viruses. The evolution of good mind and bad mind is parallel, while the good minds design anti virus, OS, hardware and software, the bad mind developed the virus to destroy them.

1. Chernobyl

In 1998, Chen Ing Hau of Taiwan devised a virus that was later coined with the name: Chernobyl. The virus he wrote wasn’t meant to infect systems, but somehow leaked and became one of the most harmful widely circulated viruses. While performing many other damaging acts, it actually erased BIOS from many computers. Computers that had motherboards based on the Intel 430TX chipset were the most vulnerable to it. The remedy was to buy the new BIOS chip but most people bought new motherboard due to lack of knowledge.

2. Kriz

Kriz or W32.Kriz was discovered a year after Chernobyl virus and uses the same methods of effecting the hardware. Many believed that it was an extension of Chernobyl. Kriz was capable of overwriting data on the floppy, hard drive and RAM and erasing data from BIOS.

3. Magistr

Magistr was unleashed into the world in year 2001. The virus was capable of deleting all the data from BIOS and hard drive. Like most other viruses it also spreads from email, it searches the address book of infected computer and sends an mail to list infected with it. Magistr can sit in your computer silently without letting anyone know and releases its wrath suddenly, deleting all your data from hard drive and/or BIOS.

These were some of the famous examples about which there exist no doubt that they damaged hardware. But often users report hardware malfunction due to virus attack so there are millions of hidden viruses that can do serious damage to the hardware mostly to CD/DVD drives. The only way out is to use a good and updated antivirus.

  • Zalpha

    No mention of Turkey, which burned monitors and CPUs, only bios wipers, which don't actually damage hardware at all. Next time, complete your research.

  • Marco

    Or use a safe operating system…

  • Marco

    Or use a safe operating system…

  • DougTheBug

    Gotta second Zalpha here, the Turkey virus is VITAL to any article on this topic.

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  • Bimlesh kumar singh

    HOW it can be possible ?????? i think it's a wrong comment !!!!!!!!!!!!!!!!!!

  • Zalpha

    It's not wrong. Twenty five years ago, it was a lot easier to write software that could do potentially damaging things to hardware. In the case of Turkey (The original virus, not the recent copycat), one variant focused the photon beam in CRT monitors in such a way as to burn them out. Another ran equations through the coprocessor so quickly that it heated up and failed. Neither attack is possible now, with safeguards in place. In fact, most computers now have the coprocessor built into the main processor, which is protected by hefty heat sinks.
    Bimlesh, you will learn in your life that you will always know a finite amount, and there is an infinite amount to learn. Be careful about dismissing knowledge out of hand.

  • Nik

    Very nicely said Zalpha.

  • Best Registry Cleaner

    There’s been much debate on whether a virus can damage your hardware or not.

  • Best Registry Cleaner

    There’s been much debate on whether a virus can damage your hardware or not.

  • Hany Freedom

    thanks for this important information

  • Anonymous

    this  article is helpful for me!

  • Anonymous

    I  agree with Zalpha.But  this article also is useful.

  • TheZomi

    Any one know recent virus that actually damage hardware? The viruses mentioned here are old ones.

  • Reza

    It was great information, many thanks.
    If someone else can do it better, do it , stop nagging!


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