如何从 Windows 内核 space 中的任意地址获取模块映像名称?
How to get module image name from an arbitrary address in Windows kernel space?
我正在尝试查看如何从内核代码的任意地址获取加载的模块映像名称。
在用户模式下我会这样做:
void* pAddr;
VOID* pBase;
WCHAR buff[MAX_PATH] = {0};
//Get address of some function in some module (just to test it)
pAddr = GetProcAddress(GetModuleHandle(L"kernel32.dll"), "GetCurrentProcess");
//Get module base address
RtlPcToFileHeader(pAddr, &pBase);
//Get module image file name
GetModuleFileNameEx(GetCurrentProcess(), (HMODULE)pBase, buff, SIZEOF(buff));
如果我有 pAddr
可以指向内核或用户 space 中的某个地址,有没有办法在内核模式下做同样的事情?
编辑:在等待答案时我想出了自己的代码(使用未记录的遍历 PEB 的方式):
#ifdef CALLING_FROM_KERNEL_MODE
//Kernel mode
TEB* pTEB = (TEB*)PsGetCurrentThreadTeb();
#else
//User mode
#if defined(_M_X64)
//64-bit
TEB* pTEB = reinterpret_cast<TEB*>(__readgsqword(reinterpret_cast<DWORD_PTR>(&static_cast<NT_TIB*>(nullptr)->Self)));
#else
//32-bit
TEB* pTEB = reinterpret_cast<TEB*>(__readfsdword(reinterpret_cast<DWORD_PTR>(&static_cast<NT_TIB*>(nullptr)->Self)));
#endif
#endif
PEB* p_PEB = pTEB->ProcessEnvironmentBlock;
PEB_LDR_DATA* pPLD = p_PEB->Ldr;
const WCHAR* pModName = NULL;
LIST_ENTRY* pLE = &pPLD->InMemoryOrderModuleList;
LIST_ENTRY* pLE_Head = pLE;
while(pLE_Head != pLE->Flink)
{
PLDR_DATA_TABLE_ENTRY pLDTE = CONTAINING_RECORD(pLE, LDR_DATA_TABLE_ENTRY, InMemoryOrderLinks);
size_t szcbSizeOfImg = (size_t)pLDTE->Reserved3[1];
if((size_t)pAddr - (size_t)pLDTE->DllBase < szcbSizeOfImg)
{
pModName = pLDTE->FullDllName.Buffer;
break;
}
pLE = pLE->Flink;
}
问题是虽然它在用户模式下工作,但在内核模式下 PsGetCurrentThreadTeb()
似乎 return NULL
。这是否意味着内核线程没有 TEB
?
这可以通过 ZwQuerySystemInformation
和 SystemModuleInformation
创建所有加载模块的列表来完成
void fgt(PVOID *Callers, ULONG Count)
{
NTSTATUS status;
ULONG cb = 0x10000;
do
{
status = STATUS_INSUFFICIENT_RESOURCES;
if (PRTL_PROCESS_MODULES prpm = (PRTL_PROCESS_MODULES)ExAllocatePool(PagedPool, cb))
{
if (0 <= (status = NtQuerySystemInformation(SystemModuleInformation, prpm, cb, &cb)))
{
do
{
PVOID Caller = *Callers++;
if (ULONG NumberOfModules = prpm->NumberOfModules)
{
PRTL_PROCESS_MODULE_INFORMATION Modules = prpm->Modules;
do
{
if ((SIZE_T)Caller - (SIZE_T)Modules->ImageBase < Modules->ImageSize)
{
DbgPrint("%p> %s\n", Caller, Modules->FullPathName);
break;
}
} while (Modules++, --NumberOfModules);
}
} while (--Count);
}
ExFreePool(prpm);
}
} while (status == STATUS_INFO_LENGTH_MISMATCH);
}
我正在尝试查看如何从内核代码的任意地址获取加载的模块映像名称。
在用户模式下我会这样做:
void* pAddr;
VOID* pBase;
WCHAR buff[MAX_PATH] = {0};
//Get address of some function in some module (just to test it)
pAddr = GetProcAddress(GetModuleHandle(L"kernel32.dll"), "GetCurrentProcess");
//Get module base address
RtlPcToFileHeader(pAddr, &pBase);
//Get module image file name
GetModuleFileNameEx(GetCurrentProcess(), (HMODULE)pBase, buff, SIZEOF(buff));
如果我有 pAddr
可以指向内核或用户 space 中的某个地址,有没有办法在内核模式下做同样的事情?
编辑:在等待答案时我想出了自己的代码(使用未记录的遍历 PEB 的方式):
#ifdef CALLING_FROM_KERNEL_MODE
//Kernel mode
TEB* pTEB = (TEB*)PsGetCurrentThreadTeb();
#else
//User mode
#if defined(_M_X64)
//64-bit
TEB* pTEB = reinterpret_cast<TEB*>(__readgsqword(reinterpret_cast<DWORD_PTR>(&static_cast<NT_TIB*>(nullptr)->Self)));
#else
//32-bit
TEB* pTEB = reinterpret_cast<TEB*>(__readfsdword(reinterpret_cast<DWORD_PTR>(&static_cast<NT_TIB*>(nullptr)->Self)));
#endif
#endif
PEB* p_PEB = pTEB->ProcessEnvironmentBlock;
PEB_LDR_DATA* pPLD = p_PEB->Ldr;
const WCHAR* pModName = NULL;
LIST_ENTRY* pLE = &pPLD->InMemoryOrderModuleList;
LIST_ENTRY* pLE_Head = pLE;
while(pLE_Head != pLE->Flink)
{
PLDR_DATA_TABLE_ENTRY pLDTE = CONTAINING_RECORD(pLE, LDR_DATA_TABLE_ENTRY, InMemoryOrderLinks);
size_t szcbSizeOfImg = (size_t)pLDTE->Reserved3[1];
if((size_t)pAddr - (size_t)pLDTE->DllBase < szcbSizeOfImg)
{
pModName = pLDTE->FullDllName.Buffer;
break;
}
pLE = pLE->Flink;
}
问题是虽然它在用户模式下工作,但在内核模式下 PsGetCurrentThreadTeb()
似乎 return NULL
。这是否意味着内核线程没有 TEB
?
这可以通过 ZwQuerySystemInformation
和 SystemModuleInformation
void fgt(PVOID *Callers, ULONG Count)
{
NTSTATUS status;
ULONG cb = 0x10000;
do
{
status = STATUS_INSUFFICIENT_RESOURCES;
if (PRTL_PROCESS_MODULES prpm = (PRTL_PROCESS_MODULES)ExAllocatePool(PagedPool, cb))
{
if (0 <= (status = NtQuerySystemInformation(SystemModuleInformation, prpm, cb, &cb)))
{
do
{
PVOID Caller = *Callers++;
if (ULONG NumberOfModules = prpm->NumberOfModules)
{
PRTL_PROCESS_MODULE_INFORMATION Modules = prpm->Modules;
do
{
if ((SIZE_T)Caller - (SIZE_T)Modules->ImageBase < Modules->ImageSize)
{
DbgPrint("%p> %s\n", Caller, Modules->FullPathName);
break;
}
} while (Modules++, --NumberOfModules);
}
} while (--Count);
}
ExFreePool(prpm);
}
} while (status == STATUS_INFO_LENGTH_MISMATCH);
}