28th September, 2018
1 Min read
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Cybersecurity researchers at ESET have unveiled what they claim to be the first-ever UEFI rootkit being used in the wild, allowing hackers to implant persistent malware on the targeted computers that could survive a complete hard-drive wipe.
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Dubbed LoJax, the UEFI rootkit is part of a malware campaign conducted by the infamous Sednit group, also known as APT28, Fancy Bear, Strontium, and Sofacy, to target several government organizations in the Balkans as well as in Central and Eastern Europe.
According to the ESET researchers, the LoJax malware has the ability to write a malicious UEFI module into the system’s SPI flash memory, allowing BIOS firmware to install and execute malware deep inside the computer disk during the boot process.
Since LoJax rootkit resides in the compromised UEFI firmware and re-infects the system before the OS even boots, reinstalling the operating system, formatting the hard disk, or even replacing the hard drive with a new one would not be sufficient to clean the infection.
Flashing the compromised firmware with legitimate software is the only way to remove such rootkit malware, which typically is not a simple task for most computer users.
Read more: The Hacker News