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Anatomy of Access: Windows Device Objects from a Security Perspective

Julian Horoszkiewicz

31 Mar 2026 • 1 min read

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Making Vulnerable Drivers Exploitable Without Hardware - The BYOVD Perspective

My latest research on driver vulnerability hardware-gating, diving deep into the technical details of hardware-dependent code and creative deployment techniques - software-emulated phantom devices, driver restacking, and forced driver replacement — all explored through the lens of Bring Your Own Vulnerable Driver (BYOVD) attacks. https://atos.net/wp-content/uploads/2026/04/

10 Apr 2026

Reaching non-default conditional blocks during grey and blackbox webapp testing

Intro I want to touch on the very common problem of incomplete coverage of code paths inherent to blackbox and greybox security testing of web apps. I have never been a fan of this approach to security testing, mostly due to the very limited target visibility leading to a disproportionately

09 Apr 2025 10 min read

Using EDR telemetry for offensive research - part 2 - service SDDLs

This article continues on the subject of using EDR telemetry to search for potential security vulnerabilities, the basics of which I have covered in the first part: https://hackingiscool.pl/using-edr-telemetry-for-offensive-research/. In that part I mentioned that having base events carrying information on file (or any other securable object) permissions

31 Mar 2025 10 min read

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