🇸🇰 Slovakia • System Security • Kernel Development • Reverse Engineering
"Security through opacity is not security. I break systems to build them stronger."
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| Core Engineering | System Internals | Analysis & Debugging |
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POV: You acquired the spinlock at
DISPATCH_LEVEL but touched paged memory...
🛡️ Aegis | Kernel Protection Driver (PoC)
A kernel-mode driver focused on reducing user-mode tampering against protected processes.
- Access Control: Uses
ObRegisterCallbacksto filter/strip handle permissions. - Hardening (WIP): Researching safe kernel telemetry + anti-tamper patterns (no “magic stealth claims”).
- Stack:
C,WDK,Kernel synchronization,IRQL-aware code
📱 Mindly | iOS Protocol Tooling
A digital detox tool that interfaces with iOS devices over USB to enforce restriction profiles.
- Protocol work: Exploring iOS configuration / MDM-related workflows via
libimobiledevice. - Implementation: Desktop UX using
ImGui, device control via USB stack. - Stack:
C++,Reverse engineering mindset,USB protocols
🌐 Sajko.sk | Session Replay Platform
Enterprise-grade session replay & analytics platform with a real-time event pipeline.
- Pipeline: Ingest → process → store → replay user sessions.
- Stack:
TypeScript,Next.js,PostgreSQL,WASM (encoding experiments)
I learn systems security by debugging real artifacts and writing tooling around them:
- Windows Internals: scheduler,
EPROCESS/KTHREAD, handle tables, callbacks - Kernel dev: WDK, IRQL rules, sync primitives, IOCTL design
- RE practice: static + dynamic analysis, patching, small PoCs
- Reading / notes: turning findings into writeups (planned: blog repo)
#include <ntddk.h>
NTSTATUS DriverEntry(_In_ PDRIVER_OBJECT DriverObject, _In_ PUNICODE_STRING RegistryPath) {
UNREFERENCED_PARAMETER(RegistryPath);
DriverObject->DriverUnload = NULL; // Set later in real projects
DbgPrintEx(DPFLTR_IHVDRIVER_ID, DPFLTR_INFO_LEVEL, "Aegis: Driver loaded.\n");
return STATUS_SUCCESS;
}
