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Posts in category: winapi

Automating MS-RPC vulnerability research

Automating MS-RPC vulnerability research

May 17, 2026
by oxfemale RPCSecuritywinapiwinapiwindows

Automating MS-RPC research shows how NtObjectManager, dynamic RPC clients, fuzzing, canary tracing, ProcMon and Neo4j can map interfaces, test procedures, find crashes and uncover coercion-style Windows bugs.

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DLL Sideloading & Proxying for Advance Red Team Engagements

DLL Sideloading & Proxying for Advance Red Team Engagements

May 14, 2026
by oxfemale MalwareRedTeamwinapiwindows

A practical look at DLL sideloading and proxying: how attackers abuse trusted Windows executables to load malicious DLLs while keeping the app running normally.

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No More Hardcoded Kernel Offsets: Turning Microsoft PDB Symbols into a Runtime BYOVD Superpower

No More Hardcoded Kernel Offsets: Turning Microsoft PDB Symbols into a Runtime BYOVD Superpower

May 13, 2026
by oxfemale kernelwinapiWinDBGwindows

A Windows kernel research technique that uses Microsoft PDB symbols to resolve offsets dynamically, avoiding hardcoded values and manual WinDBG work across builds.

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Shadow SSDT Hijacking: Achieving Kernel Code Execution via Read-Write Primitives

Shadow SSDT Hijacking: Achieving Kernel Code Execution via Read-Write Primitives

May 7, 2026
by oxfemale kernelSSDTwinapiWinDBGwindows

The article shows how Shadow SSDT hijacking can turn kernel read/write primitives into transient kernel code execution by redirecting a GUI syscall path through win32k and restoring it afterward.

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Patchless AMSI Bypass via Page Guard Exceptions

Patchless AMSI Bypass via Page Guard Exceptions

May 5, 2026
by oxfemale AMSIBypassingEDRpowershellRedTeamshellcodewinapiwindows

The article shows a patchless AMSI bypass using Page Guard exceptions and VEH to intercept AmsiScanBuffer, force an early clean return, and avoid direct code patching.

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Recursively fuzzing MS-RPC structures and monitoring using ETW

Recursively fuzzing MS-RPC structures and monitoring using ETW

May 5, 2026
by oxfemale ALPCFuzzingRPCwinapiwindows

The article updates MS-RPC-Fuzzer with recursive structure fuzzing, union support, ETW-based syscall monitoring, canary tracking, crash replay, and a Spooler case where SYSTEM loads a DLL.

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Silencing the EDR Silencers

Silencing the EDR Silencers

May 5, 2026
by oxfemale BypassingEDRFirewallRedTeamwinapiwindows

The article shows how attackers silence EDRs with firewall/WFP rules that block cloud communication, and how defenders can prevent or rapidly remove those rules via registry callbacks and APIs.

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Evading Antivirus: Bypassing Windows Defender with Tenebris-Gate

Evading Antivirus: Bypassing Windows Defender with Tenebris-Gate

May 4, 2026
by oxfemale .NETAntivirusBypassingEDRpowershellRedTeamshellcodewinapiwindows

The article presents Tenebris-Gate as a layered Windows Defender evasion framework using shellcode encryption, API hashing, anti-debugging, sandbox delays, syscall tricks, and careful memory handling.

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Internal NTDLL Functions for Shellcode Execution

Internal NTDLL Functions for Shellcode Execution

May 4, 2026
by oxfemale EDRshellcodewinapiwindows

The article tests a shellcode execution trick using a private NTDLL function as an indirect call gadget, but notes it may offer limited stealth and can still be detected by mature EDRs.

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How Kernel Anti-Cheats Work: A Deep Dive into Modern Game Protection

How Kernel Anti-Cheats Work: A Deep Dive into Modern Game Protection

April 27, 2026
by oxfemale BYOVDDriverIOCTLkernelkernel-modewinapiwinapiwindows

The article explains how kernel anti-cheats monitor games from Ring 0 using callbacks, handle filtering, memory scans, driver checks, anti-debugging, VM detection, and hardware fingerprinting.

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