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The Pumakit Linux rootkit employs advanced stealth techniques to evade detection. It uses a staged deployment, activating only under specific conditions, such as secure boot checks. The rootkit embeds necessary files as ELF binaries within the dropper, enhancing its ability to persist and remain undetected. This sophisticated malware poses a severe risk to Linux systems, indicating a high level of development and a need for enhanced endpoint security solutions.

ESET researchers discovered Bootkitty, the first UEFI bootkit designed for Linux systems. While appearing to be a proof-of-concept, its existence signals a concerning shift in the UEFI threat landscape, expanding threats beyond traditionally targeted Windows systems. Further research is needed to determine its potential for active exploitation and the extent of its capabilities.