HANDLE hFile, hSection;
    IO_STATUS_BLOCK iosb;
    NTSTATUS status;
    STATIC_OBJECT_ATTRIBUTES(oa, "\\Device\\@@@@@@@@");

    if (0 <= (status = NtOpenFile(&hFile, FILE_ALL_ACCESS, &oa, &iosb, 0, FILE_SYNCHRONOUS_IO_NONALERT)))
    {
        status = NtCreateSection(&hSection, SECTION_ALL_ACCESS, 0, 0, PAGE_READWRITE, SEC_COMMIT, hFile);

        NtClose(hFile);

        if (0 <= status)
        {
            PVOID BaseAddress = 0;
            SIZE_T ViewSize = 0;

            status = ZwMapViewOfSection(hSection, NtCurrentProcess(), &BaseAddress, 0, 0, 0,
                &ViewSize, ViewUnmap, MEM_TOP_DOWN, PAGE_READWRITE);

            NtClose(hSection);

            if (0 <= status)
            {
                ZwUnmapViewOfSection(NtCurrentProcess(), BaseAddress);
            }
        }
    }

    //-- NtOpenFile
00000005    27.67451668 NT::OnCreate(FFFFE0000233C960 00000884 fo=FFFFE00002990590)
00000006    27.67472649 NT::FCB::FCB<FFFFE00001A35150>
00000007    27.67475128 PrivateCacheMap=FFFFE00002798CD8, buf = FFFFC00001E00000 2

    //-- NtCreateSection
00000008    51.80152512 NT::AcquireFileForNtCreateSection(FFFFE00002990590)
00000009    51.80153275 FastIoQueryStandardInfo
00000010    51.80154037 NT::ReleaseFileForNtCreateSection(FFFFE00002990590)
00000011    51.80155182 NT::AcquireFileForNtCreateSection(FFFFE00002990590)
00000012    51.80155563 NT::ReleaseFileForNtCreateSection(FFFFE00002990590)

    //-- NtClose(hFile)
00000014    77.45678711 NT::OnCleanup(FFFFE00001B47E60 00000404 fo=FFFFE00002990590 FFFFC00001E00000)
00000015    77.45679474 CcPurgeCacheSection=1
00000016    77.45679474 Flags=40042 0000000000000000
00000017    78.69149017 NT::AcquireForLazyWrite(FFFFE00001A35150 1)
00000018    78.69151306 NT::ReleaseFromLazyWrite(FFFFE00001A35150 660e5c90)
00000019    78.69152069 NT::AcquireFileForNtCreateSection(FFFFE00002990590)
00000020    78.69152069 NT::ReleaseFileForNtCreateSection(FFFFE00002990590)

    //-- under debugger i access BaseAddress ( reference count on FileObject raised from 2 to 0x10 )
00000045    170.63281250    NT::OnRead(FFFFE00002376CD0 00060043 m=0)
00000046    170.63284302    NT::DoRead[8a0]<0000000000000000>(00060043 mdl=FFFFE0000293DF50 ub=0000000000000000 w=1 fo=FFFFE00002990590 1000 -> 0)
00000047    170.63284302    MmGetSystemAddressForMdlSafe=FFFFD000247E0000
00000048    170.63284302    FFFFC00001E00000 << 1000
00000049    170.63284302    NT::DoRead=0, 0000000000001000

    // ZwUnmapViewOfSection - no visible effect in driver (in user mode view is unmapped of course). reference count on FileObject unchanged