--- title: "Sagun (@sagun-labs) | Hashnode" description: "Computer Science Student & Technical Writer. Read the latest articles by Sagun on Hashnode." url: "https://hashnode.com/@sagun-labs" --- @sagun-labs # Sagun @sagun-labs · Mumbai, India · Joined July 2026 Computer Science Student & Technical Writer ### [Windows Internals Tools: The Toolkit for Understanding Windows](https://sagunwrites.hashnode.dev/windows-internals-tools-the-toolkit-for-understanding-windows?utm_source=hashnode&utm_medium=feed) Explore essential Windows Internals tools including Process Explorer, Procmon, WinDbg, VMMap, WinObj, Autoruns, TCPView, and more. 9 min read · [sagunwrites.hashnode.dev](https://sagunwrites.hashnode.dev/windows-internals-tools-the-toolkit-for-understanding-windows?utm_source=hashnode&utm_medium=feed) [Sep 1](https://hashnode.com/posts/windows-internals-tools-the-toolkit-for-understanding-windows/6a9631369a822c2ed50ac709) ### [Categories of Windows APIs: Understanding the Windows Programming Interface](https://sagunwrites.hashnode.dev/categories-of-windows-apis-understanding-the-windows-programming-interface?utm_source=hashnode&utm_medium=feed) Explore major Windows API categories including process, memory, file, Registry, security, networking, service, and device APIs. 9 min read · [sagunwrites.hashnode.dev](https://sagunwrites.hashnode.dev/categories-of-windows-apis-understanding-the-windows-programming-interface?utm_source=hashnode&utm_medium=feed) [Sep 1](https://hashnode.com/posts/categories-of-windows-apis-understanding-the-windows-programming-interface/6a96308eb993690fb22dcf9b) ### [What Is the Windows API?](https://sagunwrites.hashnode.dev/what-is-the-windows-api?utm_source=hashnode&utm_medium=feed) Learn what the Windows API is, how Win32 APIs work, common Windows DLLs, API calls, handles, and why APIs matter in malware analysis. 7 min read · [sagunwrites.hashnode.dev](https://sagunwrites.hashnode.dev/what-is-the-windows-api?utm_source=hashnode&utm_medium=feed) [Sep 1](https://hashnode.com/posts/what-is-the-windows-api/6a962fe5db6a58f98d2b7619) ### [Windows APIs and System Calls: How Applications Reach the Operating System](https://sagunwrites.hashnode.dev/windows-apis-and-system-calls-how-applications-reach-the-operating-system?utm_source=hashnode&utm_medium=feed) Learn how Windows APIs and system calls connect applications to the kernel, including Win32, NT API, ntdll.dll, and user/kernel mode. 7 min read · [sagunwrites.hashnode.dev](https://sagunwrites.hashnode.dev/windows-apis-and-system-calls-how-applications-reach-the-operating-system?utm_source=hashnode&utm_medium=feed) [Sep 1](https://hashnode.com/posts/windows-apis-and-system-calls-how-applications-reach-the-operating-system/6a962f7ebdeccf879c4e8d6f) ### [Windows Remote Procedure Calls (RPC): How Programs Communicate](https://sagunwrites.hashnode.dev/windows-remote-procedure-calls-rpc-how-programs-communicate?utm_source=hashnode&utm_medium=feed) Learn how Windows RPC works, including clients, servers, stubs, endpoints, authentication, IPC, and Windows service communication. 7 min read · [sagunwrites.hashnode.dev](https://sagunwrites.hashnode.dev/windows-remote-procedure-calls-rpc-how-programs-communicate?utm_source=hashnode&utm_medium=feed) [Sep 1](https://hashnode.com/posts/windows-remote-procedure-calls-rpc-how-programs-communicate/6a962f052dff8479e18ae250)