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A BIOS rootkit is a type of application that resides within a computer’s memory hardware and is used for remote system access and monitoring. A BIOS rootkit allows system administrators and original equipment manufacturers to remotely access and update a system. It is stored and accessed from the computer’s physical memory (RAM).
Techopedia Explains BIOS Rootkit
A BIOS rootkit is primarily designed by computer hardware manufacturer for different administrative purposes such as BIOS updates, device registration, and other tasks. Traditionally, the BIOS rootkit was non-erasable and editable. Modern systems now come equipped with a modifiable rootkit, which is stored within an integrated flash memory. A BIOS rootkit is generally persistent, and is not affected by hard drive failure or replacement.
A BIOS rootkit can also be exploited by hackers and crackers to illegitimately gain access to a system. In such an event, it is infested with a malicious code, which is generally undetectable, although it can be removed by most anti-virus and security software.
