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2015-05-08 21:31:36

New Linux rootkit leverages GPUs to hide

The Jellyfish proof-of-concept rootkit uses the processing power of graphics cards and runs in their dedicated memory

A team of developers has created a rootkit for Linux systems that uses the processing power and memory of graphics cards instead of CPUs in order to remain hidden.

The rootkit, called Jellyfish, is a proof of concept designed to demonstrate that completely running malware on GPUs (graphics processing units) is a viable option. This is possible because dedicated graphics cards have their own processors and RAM.

Such threats could be more sinister than traditional malware programs, according to the Jellyfish developers. For one, there are no tools to analyze GPU malware, they said.

Additionally, the malicious GPU memory persists even after the system is shut down, the Jellyfish developers said on their GitHub page.
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