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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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New stealthy Linux malware used to backdoor systems for years (www.bleepingcomputer.com)

submitted 3 years ago by [email protected] to c/[email protected]

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[–] [email protected] 1 points 3 years ago

If you target a binary for dropping a backdoor you usually want to build a binary that runs everywhere. My guess is that they could figure out how to build a drop-in systemd that they could compile once and worked on all major distros. This would be much harder with the kernel itself.

Regarding how it is setup: Often backdoors & exploits are sold in packages and combined when attacking the victims. Depending on the group behind the specific attack, the exploit used for setup may be different on each deployment.