注意：下面的所有案例必须使用.C结尾的文件，且必须在链接选项中加入 /INTEGRITYCHECK 选项，否则编译根本无法通过（整合修正，Win10可编译，须在测试模式下进行），内核代码相对固定，如果对内核编程不太熟的话，建议不要随意修改代码，任何一处错误的调用都会导致系统蓝屏，大佬绕过！
下方所有代码，均在 Windows 10 LTSC 企业版中测试，经过修改后代码均无任何问题，放心不会蓝屏！
内核枚举进线程/模块
内核枚举进程： 进程就是活动起来的程序，每一个进程在内核里，都有一个名为 EPROCESS 的结构记录它的详细信息，其中就包括进程名，PID，PPID，进程路径等，通常在应用层枚举进程只列出所有进程的编号即可，不过在内核层需要把它的 EPROCESS 地址给列举出来。
内核枚举进程使用PspCidTable 这个未公开的函数，它能最大的好处是能得到进程的EPROCESS地址，由于是未公开的函数，所以我们需要变相的调用这个函数，通过PsLookupProcessByProcessId函数查到进程的EPROCESS，如果PsLookupProcessByProcessId返回失败，则证明此进程不存在，如果返回成功则把EPROCESS、PID、PPID、进程名等通过DbgPrint打印到屏幕上。
#include <ntifs.h>
NTKERNELAPI UCHAR* PsGetProcessImageFileName(IN PEPROCESS Process); //未公开的进行导出即可
NTKERNELAPI HANDLE PsGetProcessInheritedFromUniqueProcessId(IN PEPROCESS Process);//未公开进行导出
// 根据进程ID返回进程EPROCESS结构体,失败返回NULL
PEPROCESS LookupProcess(HANDLE Pid)
{
PEPROCESS eprocess = NULL;
NTSTATUS Status = STATUS_UNSUCCESSFUL;
Status = PsLookupProcessByProcessId(Pid, &eprocess);
if (NT_SUCCESS(Status))
return eprocess;
return NULL;
}
VOID EnumProcess()
{
PEPROCESS eproc = NULL;
for (int temp = 0; temp < 100000; temp += 4)
{
eproc = LookupProcess((HANDLE)temp);
if (eproc != NULL)
{
DbgPrint("进程名: %s --> 进程PID = %d --> 父进程PPID = %d
",PsGetProcessImageFileName(eproc),PsGetProcessId(eproc),
PsGetProcessInheritedFromUniqueProcessId(eproc));
ObDereferenceObject(eproc);
}
}
}
VOID UnDriver(PDRIVER_OBJECT driver)
{
DbgPrint(("Uninstall Driver Is OK
"));
}
NTSTATUS DriverEntry(IN PDRIVER_OBJECT Driver, PUNICODE_STRING RegistryPath)
{
EnumProcess();
Driver->DriverUnload = UnDriver;
return STATUS_SUCCESS;
}
内核终止进程： 结束进程的标准方法就是使用ZwOpenProcess打开进程获得句柄，然后使用ZwTerminateProcess结束，最后使用ZwClose关闭句柄，代码如下：
#include <ntifs.h>
NTKERNELAPI UCHAR* PsGetProcessImageFileName(IN PEPROCESS Process);
// 根据进程ID返回进程EPROCESS结构体,失败返回NULL
PEPROCESS GetProcessNameByProcessId(HANDLE pid)
{
PEPROCESS ProcessObj = NULL;
NTSTATUS Status = STATUS_UNSUCCESSFUL;
Status = PsLookupProcessByProcessId(pid, &ProcessObj);
if (NT_SUCCESS(Status))
return ProcessObj;
return NULL;
}
// 根据ProcessName获取到进程的PID号
HANDLE GetPidByProcessName(char *ProcessName)
{
PEPROCESS pCurrentEprocess = NULL;
HANDLE pid = 0;
for (int i = 0; i < 1000000000; i += 4)
{
pCurrentEprocess = GetProcessNameByProcessId((HANDLE)i);
if (pCurrentEprocess != NULL)
{
pid = PsGetProcessId(pCurrentEprocess);
if (strstr(PsGetProcessImageFileName(pCurrentEprocess), ProcessName) != NULL)
{
ObDereferenceObject(pCurrentEprocess);
return pid;
}
ObDereferenceObject(pCurrentEprocess);
}
}
return (HANDLE)-1;
}
int KillProcess(char *ProcessName)
{
PEPROCESS pCurrentEprocess = NULL;
HANDLE pid = 0;
HANDLE Handle = NULL;
OBJECT_ATTRIBUTES obj;
CLIENT_ID cid = { 0 };
NTSTATUS Status = STATUS_UNSUCCESSFUL;
for (int i = 0; i < 10000000; i += 4)
{
pCurrentEprocess = GetProcessNameByProcessId((HANDLE)i);
if (pCurrentEprocess != NULL)
{
pid = PsGetProcessId(pCurrentEprocess);
if (strstr(PsGetProcessImageFileName(pCurrentEprocess), ProcessName) != NULL)
{
ObDereferenceObject(pCurrentEprocess);
DbgPrint("已经找到对应的PID,开始执行结束代码...");
InitializeObjectAttributes(&obj, NULL, OBJ_KERNEL_HANDLE | OBJ_CASE_INSENSITIVE, NULL, NULL);
cid.UniqueProcess = (HANDLE)pid;
cid.UniqueThread = 0;
Status = ZwOpenProcess(&Handle, GENERIC_ALL, &obj, &cid);
if (NT_SUCCESS(Status))
{
ZwTerminateProcess(Handle, 0);
ZwClose(Handle);
}
ZwClose(Handle);
return 0;
}
ObDereferenceObject(pCurrentEprocess);
}
}
return -1;
}
VOID UnDriver(PDRIVER_OBJECT driver)
{
DbgPrint(("Uninstall Driver Is OK
"));
}
NTSTATUS DriverEntry(IN PDRIVER_OBJECT Driver, PUNICODE_STRING RegistryPath)
{
int Retn = 0;
Retn = KillProcess("calc.exe");
DbgPrint("结束状态: %d
", Retn);
Driver->DriverUnload = UnDriver;
return STATUS_SUCCESS;
}
内核枚举线程： 内核线程的枚举与进程相似，线程中也存在一个ETHREAD结构，但在枚举线程之前需要先来枚举到指定进程的eprocess结构，然后在根据eprocess结构对指定线程进行枚举。
#include <ntddk.h>
#include <windef.h>
//声明API
NTKERNELAPI UCHAR* PsGetProcessImageFileName(IN PEPROCESS Process);
NTKERNELAPI NTSTATUS PsLookupProcessByProcessId(HANDLE Id, PEPROCESS *Process);
NTKERNELAPI NTSTATUS PsLookupThreadByThreadId(HANDLE Id, PETHREAD *Thread);
NTKERNELAPI PEPROCESS IoThreadToProcess(PETHREAD Thread);
//根据进程ID返回进程EPROCESS，失败返回NULL
PEPROCESS LookupProcess(HANDLE Pid)
{
PEPROCESS eprocess = NULL;
if (NT_SUCCESS(PsLookupProcessByProcessId(Pid, &eprocess)))
return eprocess;
else
return NULL;
}
//根据线程ID返回线程ETHREAD，失败返回NULL
PETHREAD LookupThread(HANDLE Tid)
{
PETHREAD ethread;
if (NT_SUCCESS(PsLookupThreadByThreadId(Tid, ðread)))
return ethread;
else
return NULL;
}
//枚举指定进程中的线程
VOID EnumThread(PEPROCESS Process)
{
ULONG i = 0, c = 0;
PETHREAD ethrd = NULL;
PEPROCESS eproc = NULL;
for (i = 4; i<262144; i = i + 4) // 一般来说没有超过100000的PID和TID
{
ethrd = LookupThread((HANDLE)i);
if (ethrd != NULL)
{
//获得线程所属进程
eproc = IoThreadToProcess(ethrd);
if (eproc == Process)
{
//打印出ETHREAD和TID
DbgPrint("线程: ETHREAD=%p TID=%ld
",ethrd,(ULONG)PsGetThreadId(ethrd));
}
ObDereferenceObject(ethrd);
}
}
}
// 通过枚举的方式定位到指定的进程，这里传递一个进程名称
VOID MyEnumThread(char *ProcessName)
{
ULONG i = 0;
PEPROCESS eproc = NULL;
for (i = 4; i<100000000; i = i + 4)
{
eproc = LookupProcess((HANDLE)i);
if (eproc != NULL)
{
ObDereferenceObject(eproc);
if (strstr(PsGetProcessImageFileName(eproc), ProcessName) != NULL)
{
EnumThread(eproc); // 相等则说明是我们想要的进程，直接枚举其中的线程
}
}
}
}
VOID DriverUnload(IN PDRIVER_OBJECT DriverObject){}
NTSTATUS DriverEntry(IN PDRIVER_OBJECT DriverObject, IN PUNICODE_STRING RegistryPath)
{
MyEnumThread("calc.exe");
DriverObject->DriverUnload = DriverUnload;
return STATUS_SUCCESS;
}
内核枚举进程模块： 枚举进程中的所有模块信息，DLL模块记录在 PEB 的 LDR 链表里，LDR 是一个双向链表，枚举链表即可，相应的卸载可使用MmUnmapViewOfSection函数，分别传入进程的EPROCESS，DLL模块基址即可。
#include <ntddk.h>
#include <windef.h>
//声明结构体
typedef struct _KAPC_STATE
{
LIST_ENTRY ApcListHead[2];
PKPROCESS Process;
UCHAR KernelApcInProgress;
UCHAR KernelApcPending;
UCHAR UserApcPending;
} KAPC_STATE, *PKAPC_STATE;
typedef struct _LDR_DATA_TABLE_ENTRY
{
LIST_ENTRY64 InLoadOrderLinks;
LIST_ENTRY64 InMemoryOrderLinks;
LIST_ENTRY64 InInitializationOrderLinks;
PVOID DllBase;
PVOID EntryPoint;
ULONG SizeOfImage;
UNICODE_STRING FullDllName;
UNICODE_STRING BaseDllName;
ULONG Flags;
USHORT LoadCount;
USHORT TlsIndex;
PVOID SectionPointer;
ULONG CheckSum;
PVOID LoadedImports;
PVOID EntryPointActivationContext;
PVOID PatchInformation;
LIST_ENTRY64 ForwarderLinks;
LIST_ENTRY64 ServiceTagLinks;
LIST_ENTRY64 StaticLinks;
PVOID ContextInformation;
ULONG64 OriginalBase;
LARGE_INTEGER LoadTime;
} LDR_DATA_TABLE_ENTRY, *PLDR_DATA_TABLE_ENTRY;
ULONG64 LdrInPebOffset = 0x018; //peb.ldr
ULONG64 ModListInPebOffset = 0x010; //peb.ldr.InLoadOrderModuleList
//声明API
NTKERNELAPI UCHAR* PsGetProcessImageFileName(IN PEPROCESS Process);
NTKERNELAPI PPEB PsGetProcessPeb(PEPROCESS Process);
NTKERNELAPI HANDLE PsGetProcessInheritedFromUniqueProcessId(IN PEPROCESS Process);
//根据进程ID返回进程EPROCESS，失败返回NULL
PEPROCESS LookupProcess(HANDLE Pid)
{
PEPROCESS eprocess = NULL;
if (NT_SUCCESS(PsLookupProcessByProcessId(Pid, &eprocess)))
return eprocess;
else
return NULL;
}
//枚举指定进程的模块
VOID EnumModule(PEPROCESS Process)
{
SIZE_T Peb = 0;
SIZE_T Ldr = 0;
PLIST_ENTRY ModListHead = 0;
PLIST_ENTRY Module = 0;
ANSI_STRING AnsiString;
KAPC_STATE ks;
//EPROCESS地址无效则退出
if (!MmIsAddressValid(Process))
return;
//获取PEB地址
Peb = (SIZE_T)PsGetProcessPeb(Process);
//PEB地址无效则退出
if (!Peb)
return;
//依附进程
KeStackAttachProcess(Process, &ks);
__try
{
//获得LDR地址
Ldr = Peb + (SIZE_T)LdrInPebOffset;
//测试是否可读，不可读则抛出异常退出
ProbeForRead((CONST PVOID)Ldr, 8, 8);
//获得链表头
ModListHead = (PLIST_ENTRY)(*(PULONG64)Ldr + ModListInPebOffset);
//再次测试可读性
ProbeForRead((CONST PVOID)ModListHead, 8, 8);
//获得第一个模块的信息
Module = ModListHead->Flink;
while (ModListHead != Module)
{
//打印信息：基址、大小、DLL路径
DbgPrint("模块基址=%p 大小=%ld 路径=%wZ
",(PVOID)(((PLDR_DATA_TABLE_ENTRY)Module)->DllBase),
(ULONG)(((PLDR_DATA_TABLE_ENTRY)Module)->SizeOfImage),&(((PLDR_DATA_TABLE_ENTRY)Module)->FullDllName));
Module = Module->Flink;
//测试下一个模块信息的可读性
ProbeForRead((CONST PVOID)Module, 80, 8);
}
}
__except (EXCEPTION_EXECUTE_HANDLER){;}
//取消依附进程
KeUnstackDetachProcess(&ks);
}
// 通过枚举的方式定位到指定的进程，这里传递一个进程名称
VOID MyEnumModule(char *ProcessName)
{
ULONG i = 0;
PEPROCESS eproc = NULL;
for (i = 4; i<100000000; i = i + 4)
{
eproc = LookupProcess((HANDLE)i);
if (eproc != NULL)
{
ObDereferenceObject(eproc);
if (strstr(PsGetProcessImageFileName(eproc), ProcessName) != NULL)
{
EnumModule(eproc); // 相等则说明是我们想要的进程，直接枚举其中的线程
}
}
}
}
VOID DriverUnload(IN PDRIVER_OBJECT DriverObject){}
NTSTATUS DriverEntry(IN PDRIVER_OBJECT DriverObject, IN PUNICODE_STRING RegistryPath)
{
MyEnumModule("calc.exe");
DriverObject->DriverUnload = DriverUnload;
return STATUS_SUCCESS;
}
内核枚举加载SYS文件： 内核中的SYS文件也是通过双向链表的方式相连接的，我们可以通过遍历LDR_DATA_TABLE_ENTRY结构(遍历自身DriverSection成员)，就能够得到全部的模块信息。
#include <ntddk.h>
#include <wdm.h>
typedef struct _LDR_DATA_TABLE_ENTRY {
LIST_ENTRY InLoadOrderLinks;
LIST_ENTRY InMemoryOrderLinks;
LIST_ENTRY InInitializationOrderLinks;
PVOID DllBase;
PVOID EntryPoint;
ULONG SizeOfImages;
UNICODE_STRING FullDllName;
UNICODE_STRING BaseDllName;
ULONG Flags;
USHORT LoadCount;
USHORT TlsIndex;
union {
LIST_ENTRY HashLinks;
struct {
PVOID SectionPointer;
ULONG CheckSum;
};
};
union {
struct {
ULONG TimeDateStamp;
};
struct {
PVOID LoadedImports;
};
};
}LDR_DATA_TABLE_ENTRY, *PLDR_DATA_TABLE_ENTRY;
VOID DriverUnload(IN PDRIVER_OBJECT DriverObject){}
NTSTATUS DriverEntry(IN PDRIVER_OBJECT DriverObject, PUNICODE_STRING RegistryPath)
{
ULONG count = 0;
NTSTATUS Status;
DriverObject->DriverUnload = DriverUnload;
PLDR_DATA_TABLE_ENTRY pLdr = NULL;
PLIST_ENTRY pListEntry = NULL;
PLDR_DATA_TABLE_ENTRY pModule = NULL;
PLIST_ENTRY pCurrentListEntry = NULL;
pLdr = (PLDR_DATA_TABLE_ENTRY)DriverObject->DriverSection;
pListEntry = pLdr->InLoadOrderLinks.Flink;
pCurrentListEntry = pListEntry->Flink;
while (pCurrentListEntry != pListEntry)
{
pModule = CONTAINING_RECORD(pCurrentListEntry, LDR_DATA_TABLE_ENTRY, InLoadOrderLinks);
if (pModule->BaseDllName.Buffer != 0)
{
DbgPrint("基址：%p ---> 偏移：%p ---> 结束地址：%p---> 模块名：%wZ
", pModule->DllBase, pModule->SizeOfImages - (LONGLONG)pModule->DllBase,
(LONGLONG)pModule->DllBase + pModule->SizeOfImages,pModule->BaseDllName);
}
pCurrentListEntry = pCurrentListEntry->Flink;
}
DriverObject->DriverUnload = DriverUnload;
return STATUS_SUCCESS;
}
### 监控进程与线程创建
监控进程的启动与退出可以使用 PsSetCreateProcessNotifyRoutineEx 来创建回调，当新进程产生时，回调函数会被率先执行，然后执行我们自己的MyCreateProcessNotifyEx函数，并在内部进行打印输出。
#include <ntddk.h>
NTKERNELAPI PCHAR PsGetProcessImageFileName(PEPROCESS Process);
NTKERNELAPI NTSTATUS PsLookupProcessByProcessId(HANDLE ProcessId, PEPROCESS *Process);
PCHAR GetProcessNameByProcessId(HANDLE ProcessId)
{
NTSTATUS st = STATUS_UNSUCCESSFUL;
PEPROCESS ProcessObj = NULL;
PCHAR string = NULL;
st = PsLookupProcessByProcessId(ProcessId, &ProcessObj);
if (NT_SUCCESS(st))
{
string = PsGetProcessImageFileName(ProcessObj);
ObfDereferenceObject(ProcessObj);
}
return string;
}
VOID MyCreateProcessNotifyEx(PEPROCESS Process, HANDLE ProcessId, PPS_CREATE_NOTIFY_INFO CreateInfo)
{
char ProcName[16] = { 0 };
if (CreateInfo != NULL)
{
strcpy(ProcName, PsGetProcessImageFileName(Process));
DbgPrint("父进程ID: %ld --->父进程名: %s --->进程名: %s---->进程路径：%wZ", CreateInfo->ParentProcessId,
GetProcessNameByProcessId(CreateInfo->ParentProcessId),
PsGetProcessImageFileName(Process),CreateInfo->ImageFileName);
}
else
{
strcpy(ProcName, PsGetProcessImageFileName(Process));
DbgPrint("进程[ %s ] 离开了，程序被关闭了",ProcName);
}
}
VOID UnDriver(PDRIVER_OBJECT driver)
{
PsSetCreateProcessNotifyRoutineEx((PCREATE_PROCESS_NOTIFY_ROUTINE_EX)MyCreateProcessNotifyEx, TRUE);
}
NTSTATUS DriverEntry(IN PDRIVER_OBJECT Driver, PUNICODE_STRING RegistryPath)
{
NTSTATUS status;
status = PsSetCreateProcessNotifyRoutineEx((PCREATE_PROCESS_NOTIFY_ROUTINE_EX)MyCreateProcessNotifyEx, FALSE);
Driver->DriverUnload = UnDriver;
return STATUS_SUCCESS;
}
在上方代码基础上进行一定的改进，思路：通过PsGetProcessImageFileName即将PID转换为进程名，然后通过_stricmp对比，如果发现是calc.exe进程则拒绝执行，禁止特定服务的运行，实现代码如下：
#include <ntddk.h>
NTKERNELAPI PCHAR PsGetProcessImageFileName(PEPROCESS Process);
NTKERNELAPI NTSTATUS PsLookupProcessByProcessId(HANDLE ProcessId, PEPROCESS *Process);
PCHAR GetProcessNameByProcessId(HANDLE ProcessId)
{
NTSTATUS st = STATUS_UNSUCCESSFUL;
PEPROCESS ProcessObj = NULL;
PCHAR string = NULL;
st = PsLookupProcessByProcessId(ProcessId, &ProcessObj);
if (NT_SUCCESS(st))
{
string = PsGetProcessImageFileName(ProcessObj);
ObfDereferenceObject(ProcessObj);
}
return string;
}
VOID MyCreateProcessNotifyEx(PEPROCESS Process, HANDLE ProcessId, PPS_CREATE_NOTIFY_INFO CreateInfo)
{
char ProcName[16] = { 0 };
if (CreateInfo != NULL)
{
strcpy(ProcName, PsGetProcessImageFileName(Process));
if (!_stricmp(ProcName, "calc.exe"))
{
CreateInfo->CreationStatus = STATUS_UNSUCCESSFUL;
}
}
}
VOID UnDriver(PDRIVER_OBJECT driver)
{
PsSetCreateProcessNotifyRoutineEx((PCREATE_PROCESS_NOTIFY_ROUTINE_EX)MyCreateProcessNotifyEx, TRUE);
DbgPrint(("驱动卸载成功"));
}
NTSTATUS DriverEntry(IN PDRIVER_OBJECT Driver, PUNICODE_STRING RegistryPath)
{
NTSTATUS status;
status = PsSetCreateProcessNotifyRoutineEx((PCREATE_PROCESS_NOTIFY_ROUTINE_EX)MyCreateProcessNotifyEx, FALSE);
Driver->DriverUnload = UnDriver;
DbgPrint("驱动加载成功!");
return STATUS_SUCCESS;
}
将上方代码编译，当我们加载驱动程序以后，再次打开C:WindowsSystem32calc.exe 计算器进程则提示无法打开，我们的驱动已经成功的拦截了本次的请求。
而检测线程操作与检测进程差不多，检测线程需要调用PsSetCreateThreadNotifyRoutine 创建回调函数，然后就可以检测线程的创建了，具体代码如下：
#include <ntddk.h>
NTKERNELAPI PCHAR PsGetProcessImageFileName(PEPROCESS Process);
NTKERNELAPI NTSTATUS PsLookupProcessByProcessId(HANDLE ProcessId, PEPROCESS *Process);
VOID MyCreateThreadNotify(HANDLE ProcessId, HANDLE ThreadId, BOOLEAN Create)
{
PEPROCESS eprocess = NULL;
PsLookupProcessByProcessId(ProcessId, &eprocess); // 通过此函数拿到程序的EPROCESS结构
if (Create)
DbgPrint("线程TID: %1d --> 所属进程名: %s --> 进程PID: %1d
", ThreadId, PsGetProcessImageFileName(eprocess), PsGetProcessId(eprocess));
else
DbgPrint("%s 线程已退出...", ThreadId);
}
VOID UnDriver(PDRIVER_OBJECT driver)
{
PsRemoveCreateThreadNotifyRoutine(MyCreateThreadNotify);
DbgPrint(("驱动卸载成功"));
}
NTSTATUS DriverEntry(IN PDRIVER_OBJECT Driver, PUNICODE_STRING RegistryPath)
{
NTSTATUS status;
status = PsSetCreateThreadNotifyRoutine(MyCreateThreadNotify);
DbgPrint("PsSetCreateThreadNotifyRoutine: %x", status);
Driver->DriverUnload = UnDriver;
return STATUS_SUCCESS;
}
### 监控进程与线程对象操作
监控进程对象和线程对象操作，可以使用ObRegisterCallbacks这个内核回调函数，通过回调我们可以实现保护calc.exe进程不被关闭，具体操作从OperationInformation->Object获得进程或线程的对象，然后再回调中判断是否是计算器，如果是就直接去掉TERMINATE_PROCESS或TERMINATE_THREAD权限即可，附上进程监控回调的写法：
#include <ntddk.h>
#include <ntstrsafe.h>
PVOID Globle_Object_Handle;
OB_PREOP_CALLBACK_STATUS MyObjectCallBack(PVOID RegistrationContext, POB_PRE_OPERATION_INFORMATION OperationInformation)
{
DbgPrint("执行了我们的回调函数...");
return STATUS_SUCCESS;
}
VOID UnDriver(PDRIVER_OBJECT driver)
{
ObUnRegisterCallbacks(Globle_Object_Handle);
DbgPrint("回调卸载完成...");
}
NTSTATUS DriverEntry(IN PDRIVER_OBJECT Driver, PUNICODE_STRING RegistryPath)
{
OB_OPERATION_REGISTRATION Base; // 回调函数结构体(你所填的结构都在这里)
OB_CALLBACK_REGISTRATION CallbackReg;
CallbackReg.RegistrationContext = NULL; // 注册上下文(你回调函数返回参数)
CallbackReg.Version = OB_FLT_REGISTRATION_VERSION; // 注册回调版本
CallbackReg.OperationRegistration = &Base;
CallbackReg.OperationRegistrationCount = 1; // 操作计数(下钩数量)
RtlUnicodeStringInit(&CallbackReg.Altitude, L"600000"); // 长度
Base.ObjectType = PsProcessType; // 进程操作类型.此处为进程操作
Base.Operations = OB_OPERATION_HANDLE_CREATE; // 操作句柄创建
Base.PreOperation = MyObjectCallBack; // 你自己的回调函数
Base.PostOperation = NULL;
if (ObRegisterCallbacks(&CallbackReg, &Globle_Object_Handle)) // 注册回调
DbgPrint("回调注册成功...");
Driver->DriverUnload = UnDriver;
return STATUS_SUCCESS;
}
上方代码运行后，我们可以打开Xuetr扫描一下内核Object钩子，可以看到已经成功挂钩了。
检测计算器进程的关闭状态，代码如下：
#include <ntddk.h>
#include <wdm.h>
#include <ntstrsafe.h>
#define PROCESS_TERMINATE 1
PVOID Globle_Object_Handle;
NTKERNELAPI UCHAR * PsGetProcessImageFileName(__in PEPROCESS Process);
char* GetProcessImageNameByProcessID(ULONG ulProcessID)
{
NTSTATUS Status;
PEPROCESS EProcess = NULL;
Status = PsLookupProcessByProcessId((HANDLE)ulProcessID, &EProcess);
if (!NT_SUCCESS(Status))
return FALSE;
ObDereferenceObject(EProcess);
return (char*)PsGetProcessImageFileName(EProcess);
}
OB_PREOP_CALLBACK_STATUS MyObjectCallBack(PVOID RegistrationContext, POB_PRE_OPERATION_INFORMATION Operation)
{
char ProcName[256] = { 0 };
HANDLE pid = PsGetProcessId((PEPROCESS)Operation->Object); // 取出当前调用函数的PID
strcpy(ProcName, GetProcessImageNameByProcessID((ULONG)pid)); // 通过PID取出进程名,然后直接拷贝内存
//DbgPrint("当前进程的名字是：%s", ProcName);
if (strstr(ProcName, "win32calc.exe"))
{
if (Operation->Operation == OB_OPERATION_HANDLE_CREATE)
{
if ((Operation->Parameters->CreateHandleInformation.OriginalDesiredAccess & PROCESS_TERMINATE) == PROCESS_TERMINATE)
{
DbgPrint("你想结束进程?");
// 如果是计算器，则去掉它的结束权限，在Win10上无效
Operation->Parameters->CreateHandleInformation.DesiredAccess = ~THREAD_TERMINATE;
return STATUS_UNSUCCESSFUL;
}
}
}
return STATUS_SUCCESS;
}
VOID UnDriver(PDRIVER_OBJECT driver)
{
ObUnRegisterCallbacks(Globle_Object_Handle);
DbgPrint("回调卸载完成...");
}
NTSTATUS DriverEntry(IN PDRIVER_OBJECT Driver, PUNICODE_STRING RegistryPath)
{
NTSTATUS obst = 0;
OB_CALLBACK_REGISTRATION obReg;
OB_OPERATION_REGISTRATION opReg;
memset(&obReg, 0, sizeof(obReg));
obReg.Version = ObGetFilterVersion();
obReg.OperationRegistrationCount = 1;
obReg.RegistrationContext = NULL;
RtlInitUnicodeString(&obReg.Altitude, L"321125");
obReg.OperationRegistration = &opReg;
memset(&opReg, 0, sizeof(opReg));
opReg.ObjectType = PsProcessType;
opReg.Operations = OB_OPERATION_HANDLE_CREATE | OB_OPERATION_HANDLE_DUPLICATE;
opReg.PreOperation = (POB_PRE_OPERATION_CALLBACK)&MyObjectCallBack;
obst = ObRegisterCallbacks(&obReg, &Globle_Object_Handle);
Driver->DriverUnload = UnDriver;
return STATUS_SUCCESS;
}
首先运行计算器，然后启动驱动保护，此时我们在任务管理器中就无法结束计算器进程了。
### 监控进程中模块加载
系统中的模块加载包括用户层模块DLL和内核模块SYS的加载，在 Windows X64 环境下我们可以调用 PsSetLoadImageNotifyRoutine内核函数来设置一个映像加载通告例程，当有驱动或者DLL被加载时，回调函数就会被调用从而执行我们自己的回调例程。
#include <ntddk.h>
#include <ntimage.h>
PVOID GetDriverEntryByImageBase(PVOID ImageBase)
{
PIMAGE_DOS_HEADER pDOSHeader;
PIMAGE_NT_HEADERS64 pNTHeader;
PVOID pEntryPoint;
pDOSHeader = (PIMAGE_DOS_HEADER)ImageBase;
pNTHeader = (PIMAGE_NT_HEADERS64)((ULONG64)ImageBase + pDOSHeader->e_lfanew);
pEntryPoint = (PVOID)((ULONG64)ImageBase + pNTHeader->OptionalHeader.AddressOfEntryPoint);
return pEntryPoint;
}
VOID MyLoadImageNotifyRoutine(PUNICODE_STRING FullImageName,HANDLE ProcessId,PIMAGE_INFO ImageInfo)
{
PVOID pDrvEntry;
if (FullImageName != NULL && MmIsAddressValid(FullImageName)) // MmIsAddress 验证地址可用性
{
if (ProcessId == 0)
{
pDrvEntry = GetDriverEntryByImageBase(ImageInfo->ImageBase);
DbgPrint("模块名称:%wZ --> 装载基址:%p --> 镜像长度: %d", FullImageName, pDrvEntry,ImageInfo->ImageSize);
}
}
}
VOID UnDriver(PDRIVER_OBJECT driver)
{
PsRemoveLoadImageNotifyRoutine((PLOAD_IMAGE_NOTIFY_ROUTINE)MyLoadImageNotifyRoutine);
DbgPrint("驱动卸载完成...");
}
NTSTATUS DriverEntry(IN PDRIVER_OBJECT Driver, PUNICODE_STRING RegistryPath)
{
PsSetLoadImageNotifyRoutine((PLOAD_IMAGE_NOTIFY_ROUTINE)MyLoadImageNotifyRoutine);
DbgPrint("驱动加载完成...");
Driver->DriverUnload = UnDriver;
return STATUS_SUCCESS;
}
接着我们给上方的代码加上判断功能，只需在上方代码的基础上小改一下即可，需要注意回调函数中的第二个参数，如果返回值为零则表示加载SYS，如果返回非零则表示加载DLL
VOID UnicodeToChar(PUNICODE_STRING dst, char *src)
{
ANSI_STRING string;
RtlUnicodeStringToAnsiString(&string, dst, TRUE);
strcpy(src, string.Buffer);
RtlFreeAnsiString(&string);
}
VOID MyLoadImageNotifyRoutine(PUNICODE_STRING FullImageName,HANDLE ModuleStyle,PIMAGE_INFO ImageInfo)
{
PVOID pDrvEntry;
char szFullImageName[256] = { 0 };
if (FullImageName != NULL && MmIsAddressValid(FullImageName)) // MmIsAddress 验证地址可用性
{
if (ModuleStyle == 0) // ModuleStyle为零表示加载sys非零表示加载DLL
{
pDrvEntry = GetDriverEntryByImageBase(ImageInfo->ImageBase);
UnicodeToChar(FullImageName, szFullImageName);
if (strstr(_strlwr(szFullImageName), "hook.sys"))
{
DbgPrint("准备拦截SYS内核模块：%s", _strlwr(szFullImageName));
}
}
}
}
上方代码就可以判断加载的模块并作出处理动作了，但是我们仍然无法判断到底是那个进程加载的hook.sys驱动，因为回调函数很底层，到了一定的深度之后就无法判断到底是谁主动引发的行为了，一切都是系统的行为。
判断了是驱动后，接着我们就要实现屏蔽驱动，通过ImageInfo->ImageBase 来获取被加载驱动程序hook.sys的映像基址，然后找到NT头的OptionalHeader节点，该节点里面就是被加载驱动入口的地址，通过汇编在驱动头部写入ret返回指令，即可实现屏蔽加载特定驱动文件。
#include <ntddk.h>
#include <intrin.h>
#include <ntimage.h>
PVOID GetDriverEntryByImageBase(PVOID ImageBase)
{
PIMAGE_DOS_HEADER pDOSHeader;
PIMAGE_NT_HEADERS64 pNTHeader;
PVOID pEntryPoint;
pDOSHeader = (PIMAGE_DOS_HEADER)ImageBase;
pNTHeader = (PIMAGE_NT_HEADERS64)((ULONG64)ImageBase + pDOSHeader->e_lfanew);
pEntryPoint = (PVOID)((ULONG64)ImageBase + pNTHeader->OptionalHeader.AddressOfEntryPoint);
return pEntryPoint;
}
VOID UnicodeToChar(PUNICODE_STRING dst, char *src)
{
ANSI_STRING string;
RtlUnicodeStringToAnsiString(&string, dst, TRUE);
strcpy(src, string.Buffer);
RtlFreeAnsiString(&string);
}
// 使用开关写保护需要在 C/C++ 优化中启用内部函数
KIRQL WPOFFx64() // 关闭写保护
{
KIRQL irql = KeRaiseIrqlToDpcLevel();
UINT64 cr0 = __readcr0();
cr0 &= 0xfffffffffffeffff;
_disable();
__writecr0(cr0);
return irql;
}
void WPONx64(KIRQL irql) // 开启写保护
{
UINT64 cr0 = __readcr0();
cr0 |= 0x10000;
_enable();
__writecr0(cr0);
KeLowerIrql(irql);
}
BOOLEAN DenyLoadDriver(PVOID DriverEntry)
{
UCHAR fuck[] = "xB8x22x00x00xC0xC3";
KIRQL kirql;
/* 在模块开头写入以下汇编指令
Mov eax,c0000022h
ret
*/
if (DriverEntry == NULL) return FALSE;
kirql = WPOFFx64();
memcpy(DriverEntry, fuck,sizeof(fuck) / sizeof(fuck[0]));
WPONx64(kirql);
return TRUE;
}
VOID MyLoadImageNotifyRoutine(PUNICODE_STRING FullImageName, HANDLE ModuleStyle, PIMAGE_INFO ImageInfo)
{
PVOID pDrvEntry;
char szFullImageName[256] = { 0 };
if (FullImageName != NULL && MmIsAddressValid(FullImageName)) // MmIsAddress 验证地址可用性
{
if (ModuleStyle == 0) // ModuleStyle为零表示加载sys非零表示加载DLL
{
pDrvEntry = GetDriverEntryByImageBase(ImageInfo->ImageBase);
UnicodeToChar(FullImageName, szFullImageName);
if (strstr(_strlwr(szFullImageName), "hook.sys"))
{
DbgPrint("拦截SYS内核模块：%s", szFullImageName);
DenyLoadDriver(pDrvEntry);
}
}
}
}
VOID UnDriver(PDRIVER_OBJECT driver)
{
PsRemoveLoadImageNotifyRoutine((PLOAD_IMAGE_NOTIFY_ROUTINE)MyLoadImageNotifyRoutine);
DbgPrint("驱动卸载完成...");
}
NTSTATUS DriverEntry(IN PDRIVER_OBJECT Driver, PUNICODE_STRING RegistryPath)
{
PsSetLoadImageNotifyRoutine((PLOAD_IMAGE_NOTIFY_ROUTINE)MyLoadImageNotifyRoutine);
DbgPrint("驱动加载完成...");
Driver->DriverUnload = UnDriver;
return STATUS_SUCCESS;
}
屏蔽DLL加载，只需要在上面的代码上稍微修改一下就好，这里提供到另一种写法。
char *UnicodeToLongString(PUNICODE_STRING uString)
{
ANSI_STRING asStr;
char *Buffer = NULL;;
RtlUnicodeStringToAnsiString(&asStr, uString, TRUE);
Buffer = ExAllocatePoolWithTag(NonPagedPool, uString->MaximumLength * sizeof(wchar_t), 0);
if (Buffer == NULL)
return NULL;
RtlCopyMemory(Buffer, asStr.Buffer, asStr.Length);
return Buffer;
}
VOID MyLoadImageNotifyRoutine(PUNICODE_STRING FullImageName, HANDLE ModuleStyle, PIMAGE_INFO ImageInfo)
{
PVOID pDrvEntry;
char *PareString = NULL;
if (MmIsAddressValid(FullImageName))
{
if (ModuleStyle != 0) // 非零则监控DLL加载
{
PareString = UnicodeToLongString(FullImageName);
if (PareString != NULL)
{
if (strstr(PareString, "hook.dll"))
{
pDrvEntry = GetDriverEntryByImageBase(ImageInfo->ImageBase);
if (pDrvEntry != NULL)
DenyLoadDriver(pDrvEntry);
}
}
}
}
}
我们以屏蔽SYS内核模块为例，当驱动文件WinDDK.sys被加载后，尝试加载hook.sys会提示拒绝访问，说明我们的驱动保护生效了。
关键的内核进程骚操作已经分享完了，是不是一脸懵逼十脸茫然？这尼玛是什么鬼，有啥用？其实这东西用处可大了，杀软的主动防御系统，游戏的保护系统等都会用到这些东西，还觉得这些东西没用吗？
