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Posted on 2009-03-21 16:19 Tommy Liang 閱讀(1270) 評論(0) 編輯 收藏 引用 所屬分類: 進程與線程
看了《Rootkit》和《黑客防線2009》的文章，代碼寫了一下，有些體會：
驅動程序代碼：
 #include "ntddk.h"
#define NT_DEVICE_NAME L"\\Device\\ProtectProcess"
#define DOS_DEVICE_NAME L"\\DosDevices\\ProtectProcess"
#define IOCTL_PROTECT_CONTROL CTL_CODE(FILE_DEVICE_UNKNOWN,0x800,METHOD_BUFFERED,FILE_ANY_ACCESS)
NTSTATUS DispatchDeviceControl(IN PDEVICE_OBJECT DeviceObject,IN PIRP Irp);
void OnUnload(IN PDRIVER_OBJECT DriverObject);
#pragma pack(1)
  typedef struct ServiceDescriptorEntry {
 unsigned int *ServiceTableBase;
unsigned int *ServiceCounterTableBase;
unsigned int NumberOfServices;
unsigned char *ParamTableBase;
 } SSDT_Entry,*pSSDT_Entry;
#pragma pack()
__declspec(dllimport) SSDT_Entry KeServiceDescriptorTable;
#define SYSTEMSERVICE(_func) \
KeServiceDescriptorTable.ServiceTableBase[*(PULONG)((PUCHAR)_func+1)]
NTSYSAPI NTSTATUS NTAPI ZwOpenProcess(OUT PHANDLE ProcessHandle,
IN ACCESS_MASK DesiredAccess,
IN POBJECT_ATTRIBUTES ObjectAttributes,
IN PCLIENT_ID ClientId OPTIONAL);
typedef NTSTATUS (*ZWOPENPROCESS)(OUT PHANDLE ProcessHandle,
IN ACCESS_MASK DesiredAccess,
IN POBJECT_ATTRIBUTES ObjectAttributes,
IN PCLIENT_ID ClientId OPTIONAL);
ZWOPENPROCESS OldZwOpenProcess;
long pid = 0;
NTSTATUS NewZwOpenProcess(OUT PHANDLE ProcessHandle,
IN ACCESS_MASK DesiredAccess,
IN POBJECT_ATTRIBUTES ObjectAttributes,
IN PCLIENT_ID ClientId OPTIONAL)
{
NTSTATUS nStatus = STATUS_SUCCESS;
if((long)ClientId->UniqueProcess == pid)
  {
DbgPrint("保護進程 PID:%d\n",pid);
return STATUS_ACCESS_DENIED;
 }
nStatus = OldZwOpenProcess(ProcessHandle,DesiredAccess,ObjectAttributes,ClientId);
return nStatus;
}
void OnUnload(IN PDRIVER_OBJECT DriverObject)
{
UNICODE_STRING DeviceLinkString;
PDEVICE_OBJECT DeviceObjectTemp1 = NULL;
PDEVICE_OBJECT DeviceObjectTemp2 = NULL;
DbgPrint("驅動程序卸載\n");
RtlInitUnicodeString(&DeviceLinkString,DOS_DEVICE_NAME);
IoDeleteSymbolicLink(&DeviceLinkString);
if(DriverObject)
{
DeviceObjectTemp1 = DriverObject->DeviceObject;
while(DeviceObjectTemp1)
{
DeviceObjectTemp2 = DeviceObjectTemp1;
DeviceObjectTemp1 = DeviceObjectTemp1->NextDevice;
IoDeleteDevice(DeviceObjectTemp2);
}
}
DbgPrint("設備已卸載\n");
DbgPrint("修復SSDT\n");
(ZWOPENPROCESS)(SYSTEMSERVICE(ZwOpenProcess)) = OldZwOpenProcess;
DbgPrint("驅動卸載完畢\n");
}
NTSTATUS DispatchDeviceControl(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
{
NTSTATUS nStatus = STATUS_SUCCESS;
ULONG IoControlCode = 0;
PIO_STACK_LOCATION IrpStack = NULL;
long* inBuf = NULL;
char* outBuf = NULL;
ULONG inSize = 0;
ULONG outSize = 0;
PCHAR buffer = NULL;
PMDL mdl = NULL;
Irp->IoStatus.Status = STATUS_SUCCESS;
Irp->IoStatus.Information = 0;
IrpStack = IoGetCurrentIrpStackLocation(Irp);
switch(IrpStack->MajorFunction)
{
case IRP_MJ_CREATE:
DbgPrint("IRP_MJ_CREATE 被調用\n");
break;
case IRP_MJ_CLOSE:
DbgPrint("IRP_MJ_CLOSE 被調用\n");
break;
case IRP_MJ_DEVICE_CONTROL:
DbgPrint("IRP_MJ_DEVICE_CONTROL 被調用\n");
IoControlCode = IrpStack->Parameters.DeviceIoControl.IoControlCode;
switch(IoControlCode)
{
case IOCTL_PROTECT_CONTROL:
inSize = IrpStack->Parameters.DeviceIoControl.InputBufferLength;
outSize = IrpStack->Parameters.DeviceIoControl.OutputBufferLength;
inBuf = (long*)Irp->AssociatedIrp.SystemBuffer;
pid = *inBuf;
DbgPrint("=========================================\n");
DbgPrint("IOCTRL_PROTECT_CONTROL 被調用，通訊成功！\n");
DbgPrint("輸入緩沖區大小：%d\n",inSize);
DbgPrint("輸出緩沖區大小：%d\n",outSize);
DbgPrint("輸入緩沖區內容：%ld\n",*inBuf);
DbgPrint("當前保護進程ID：%ld\n",pid);
DbgPrint("=========================================\n");
strcpy(Irp->UserBuffer,"OK\n");
break;
default:
break;
}
break;
default:
DbgPrint("未知請求包被調用\n");
break;
}
nStatus = Irp->IoStatus.Status;
IoCompleteRequest(Irp,IO_NO_INCREMENT);
return nStatus;
}
NTSTATUS DriverEntry(IN PDRIVER_OBJECT DriverObject,IN PUNICODE_STRING theRegistryPath)
{
NTSTATUS ntStatus = STATUS_SUCCESS;
UNICODE_STRING ntDeviceName;
UNICODE_STRING DeviceLinkString;
PDEVICE_OBJECT deviceObject = NULL;
DbgPrint("驅動程序加載\n");
RtlInitUnicodeString(&ntDeviceName,NT_DEVICE_NAME);
ntStatus = IoCreateDevice(
DriverObject,
0,
&ntDeviceName,
FILE_DEVICE_UNKNOWN,
0,
FALSE,
&deviceObject);
if(!NT_SUCCESS(ntStatus))
{
DbgPrint("無法創建驅動設備");
return ntStatus;
}
RtlInitUnicodeString(&DeviceLinkString,DOS_DEVICE_NAME);
ntStatus = IoCreateSymbolicLink(&DeviceLinkString,&ntDeviceName);
if(!NT_SUCCESS(ntStatus))
{
DbgPrint("無法創建驅動設備");
return ntStatus;
}
DriverObject->MajorFunction[IRP_MJ_CREATE] = DispatchDeviceControl;
DriverObject->MajorFunction[IRP_MJ_CLOSE] = DispatchDeviceControl;
DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = DispatchDeviceControl;
DriverObject->DriverUnload = OnUnload;
DbgPrint("驅動程序已經啟動\n");
DbgPrint("修改SSDT\n");
OldZwOpenProcess = (ZWOPENPROCESS)(SYSTEMSERVICE(ZwOpenProcess));
(ZWOPENPROCESS)(SYSTEMSERVICE(ZwOpenProcess)) = NewZwOpenProcess;
DbgPrint("驅動程序加載完畢\n");
return STATUS_SUCCESS;
}
服務安裝程序：
// ProtectInstaller.cpp : Defines the entry point for the console application.
//
#include "stdafx.h"
#define BUF_SIZE 4096
int main(int argc, char* argv[])
{
char path[BUF_SIZE];
char base[BUF_SIZE];
char sername[BUF_SIZE];
char disname[BUF_SIZE];
memset(path,0,BUF_SIZE);
memset(base,0,BUF_SIZE);
memset(sername,0,BUF_SIZE);
memset(disname,0,BUF_SIZE);
SC_HANDLE rh = NULL;
SC_HANDLE sh = NULL;
if(argc == 1)
{
printf("use:install/start/uninstall\n");
exit(0);
}
::GetModuleFileName(0,base,BUF_SIZE);
int p = strlen(base);
while(base[p] != '\\'){ p --; }
strncpy(path,base,p+1);
memset(base,0,BUF_SIZE);
sprintf(base,"%sInstall.ini",path);
memset(path,0,BUF_SIZE);
::GetPrivateProfileString("Config","Path","",path,BUF_SIZE,base);
::GetPrivateProfileString("Config","ServiceName","",sername,BUF_SIZE,base);
::GetPrivateProfileString("Config","DisplayName","",disname,BUF_SIZE,base);
printf("[*]Service Name:%s\n",sername);
printf("[*]Display Name:%s\n",disname);
printf("[*]Driver Path:%s\n",path);
sh = OpenSCManager(NULL,NULL,SC_MANAGER_ALL_ACCESS);
if(!sh){
printf("[-]Error OpenSCManager.\n");
exit(0);
}
if(argc == 2 && !strcmp(argv[1],"install"))
{
if(!strcmp(path,""))
{
printf("[-]error read Install.ini\n");
exit(0);
}
rh = CreateService(sh,
sername,
disname,
SERVICE_ALL_ACCESS,
SERVICE_KERNEL_DRIVER,
SERVICE_DEMAND_START,
SERVICE_ERROR_NORMAL,
path,
NULL,NULL,NULL,NULL,NULL);
if(!rh)
{
printf("[-]error CreateService.\n");
exit(0);
}
printf("[-]Install Service Complete\n");
}
else if(argc == 2 && !strcmp(argv[1],"start"))
{
rh = OpenService(sh,sername,SERVICE_ALL_ACCESS);
if(!rh)
{
printf("[-]error OpenService.\n");
exit(0);
}
StartService(rh,NULL,NULL);
printf("[-]Start Service Complete\n");
}
else if(argc == 2 && !strcmp(argv[1],"uninstall"))
{
rh = OpenService(sh,sername,SERVICE_ALL_ACCESS);
if(!rh)
{
printf("[-]error OpenService.\n");
exit(0);
}
SERVICE_STATUS ss;
ControlService(rh,SERVICE_CONTROL_STOP,&ss);
printf("[-]Stop Service Complete\n");
DeleteService(rh);
printf("[-]Delete Service Complete\n");
}
CloseServiceHandle(rh);
CloseServiceHandle(sh);
return 1;
}
INI文件：
[Config]
Path=D:\hacker\ddk\Protect\sys\i386\Protect.sys
ServiceName=Rootkit
DisplayName=RootkitKernel
VC05搞了個解決方案 
驅動編譯通過了，安裝程序也通過了，也能啟動， 打開DeviceTree看看，搜索 ProtectProcess，找到了:  現在輪到告訴驅動PID的程序：
#include <stdio.h>
#include <stdlib.h>
#include <windows.h>
#include <winioctl.h>
#ifndef _WIN32_WINNT // Allow use of features specific to Windows XP or later.
#define _WIN32_WINNT 0x0501 // Change this to the appropriate value to target other versions of Windows.
#endif
#undef UNICODE
#define IOCTL_HELLO_CONTROL CTL_CODE(FILE_DEVICE_UNKNOWN,0x800,METHOD_BUFFERED,FILE_ANY_ACCESS)
int main(int argc,char* argv[])
{
long pid = 0;
char ret[4096];
DWORD ReBytes = 0;
HANDLE hDevice = CreateFile(L"\\\\.\\ProtectProcess",GENERIC_READ|GENERIC_WRITE,0,NULL,
OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL);
if(hDevice == INVALID_HANDLE_VALUE)
{
if(2 == GetLastError())
{
printf("驅動程序未注冊\n");
}
else
{
printf("CreateFile() GetLastError reports %d \n",GetLastError());
}
return FALSE;
}
memset(ret,0,4096);
printf("請輸入要保護的進程PID");
scanf("%ld",&pid);
DeviceIoControl(hDevice,IOCTL_HELLO_CONTROL,
&pid,sizeof(long),ret,4096,&ReBytes,NULL);
printf("Return Value:%s\n",ret);
CloseHandle(hDevice);
return 1;
}
開始的時候，在 CreateFile的第一個參數那里犯了一個錯誤，沒有在前面加上“L”，結果一個下午花了3個小時在煩躁，一直提示驅動未安裝，現在好了，PASS。 啟動記事本，找到pid，運行通信程序，輸入pid，打開任務管理器，好了，現在殺不掉notepad.exe了：  很有意思。
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