Ori Damari

@0xrepnz

Low level developer, Reverse engineer, Windows kernel. Read my blog! 😋

nt!KiSwapThread

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Ori Damari
@0xrepnz
Jun 2, 2020
I wrote another post about the Windows APC mechanism - This time we'll explore the internals of user APCs in the windows kernel in depth! From NtQueueApcThread to the APC routine in user mode. repnz.github.io/posts/apc/kern… Stay tuned for more posts about APCs and windows kernel😋
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Ori Damari
@0xrepnz
Feb 18
You thought rust avoids memory leaks? Think again - In rust, global variables are leaked by design. This means that practically there is no 'safe' way to use Rust in a dynamic library that can unload - if some third party crate decides to use a global variable it won't be freed.
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Ori Damari
@0xrepnz
Dec 13, 2025
My two cents (or rather, rants 😅) on UAC: In the XP era, programs were executed as admin by default - but the security best practice was, obviously, to let employees execute with a non-admin user. The problem was - because many users run with the default configuration,
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Ori Damari
@0xrepnz
Apr 23, 2025
A good bedtime story: Did you know that back in the days of the Windows 3.1 beta Microsoft added an obfuscated piece of code (The "AARD" code) designed to hinder the execution of Windows on non MSFT versions of DOS? (e.g DR-DOS) en.m.wikipedia.org/wiki/AARD_code geoffchappell.com/notes/windows/…
Ori Damari
@0xrepnz
Apr 9, 2025
ping
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Sunbelt Computer Software