BIOS Virus is a new variant of infection and can even, even if the hard drive is wiped off.
BIOS (basic input-output system) is a technical collection of instructions that tells your computer how to boot up. The BIOS information is not stored in the hard drive, but rather in flash memory on the motherboard. Because the BIOS is a critical component of system boot up, errors or viruses in the BIOS can render a computer completely inoperable by normal means. However, most known viruses that are capable of infecting the BIOS are not designed to shut machines down completely.
Signs You May Have a BIOS Virus.
BIOS viruses are extremely difficult to get rid of, but fortunately, they are very rare. Since the BIOS is completely separate from the hard disks of a computer, normal virus scan software will never catch a BIOS virus. Therefore, if you experience system behavior that can only be caused by a virus, but your virus scans keep coming up clean, there is a legitimate chance that you may have a BIOS virus. The BIOS will remain unchanged even if you completely format your hard disks and reinstall your operating system. The most commonly known BIOS viruses are those that create warning messages that say the computer is infected by a virus. These messages are followed by the automatic opening of a Web browser and the loading of a page for fake virus scanning and removal software. Presumably, the creators of the virus stand to profit by tricking computer users into entering their credit card information into these websites.
How to remove the BIOS virus?
- Back up all of your data.
- Flash the BIOS and reinstall OS.