this post was submitted on 19 Aug 2023
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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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The blocker allows to block any kind of executable code, that includes EXE, DLL, VBS and all kinds of extension formats, and allows to whitelist what directories, processes and programs can run as well. It intercepts all IPC as well. There is also a HIPS firewall that intercepts all network traffic and processes. All bases are covered in my approach, and I discussed this personally with The PC Security Channel on a Discord voice call.
The only kind of vulnerabilities would be a CPU or OS/firmware level attack, but the latter is plugged largely due to combined maxed UAC slider/antiexecutable/HIPS firewall blocking any and all execution, and group policies taking care of any elevations. All this runs under a standard user account.
I do not recommend people this approach, considering how complex it is to setup and fully understand, but once it is setup, it is set and forget since years now. Only advanced users and pentesters who have experience and knowledge should do this. I am doing this because it allows both the machine to support legacy hardware like scanner, printer, DVD writer et al, and allows to run legacy Windows programs, besides allowing to use internet with Firefox/custom uBO.