nefarius/Domito
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Added DomitoMemorySearchPattern

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This commit is contained in:
Benjamin Höglinger-Stelzer 2023-07-01 05:24:04 +02:00
parent 0d9cc19fbd
commit 1113a23f19
2 changed files with 210 additions and 150 deletions
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30
include/Domito.h
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@ -10,7 +10,7 @@ __drv_allocatesMem(Mem)
PVOID
NTAPI
EVT_DOMITO_ALLOCATE_ROUTINE(
_In_ SIZE_T ByteSize
_In_ SIZE_T ByteSize
);
typedef EVT_DOMITO_ALLOCATE_ROUTINE* PFN_DOMITO_ALLOCATE_ROUTINE;
@ -24,9 +24,9 @@ _IRQL_requires_max_(PASSIVE_LEVEL)
EXTERN_C
NTSTATUS
DomitoFindDriverBaseAddress(
_In_ STRING ModuleName,
_In_ PFN_DOMITO_ALLOCATE_ROUTINE Allocator,
_Inout_opt_ PVOID * ModuleBase
_In_ STRING ModuleName,
_In_ PFN_DOMITO_ALLOCATE_ROUTINE Allocator,
_Inout_opt_ PVOID * ModuleBase
);
//
@ -38,7 +38,23 @@ _IRQL_requires_max_(PASSIVE_LEVEL)
EXTERN_C
NTSTATUS
DomitoFindExportedFunctionAddress(
_In_ PVOID ModuleBase,
_In_ STRING FunctionName,
_Inout_opt_ PVOID * FunctionAddress
_In_ PVOID ModuleBase,
_In_ STRING FunctionName,
_Inout_opt_ PVOID * FunctionAddress
);
//
// Scans a provided buffer for a memory pattern
//
_Success_(return == STATUS_SUCCESS)
_Must_inspect_result_
_IRQL_requires_max_(DISPATCH_LEVEL)
NTSTATUS
DomitoMemorySearchPattern(
_In_ PCUCHAR pcPattern,
_In_ UCHAR uWildcard,
_In_ SIZE_T puLen,
_In_ PVOID pcBase,
_In_ SIZE_T puSize,
_Outptr_result_maybenull_ PVOID* ppMatch
);

330
src/Domito.cpp
View File

@ -7,63 +7,63 @@
// Structure representing a loaded module
typedef struct _SYSTEM_MODULE_INFORMATION_ENTRY
{
PVOID Unknown1;
PVOID Unknown2;
PVOID Base;
ULONG Size;
ULONG Flags;
USHORT Index;
USHORT NameLength;
USHORT LoadCount;
USHORT PathLength;
CHAR ImageName[256];
PVOID Unknown1;
PVOID Unknown2;
PVOID Base;
ULONG Size;
ULONG Flags;
USHORT Index;
USHORT NameLength;
USHORT LoadCount;
USHORT PathLength;
CHAR ImageName[256];
} SYSTEM_MODULE_INFORMATION_ENTRY, * PSYSTEM_MODULE_INFORMATION_ENTRY;
// Structure representing the loaded module information
typedef struct _SYSTEM_MODULE_INFORMATION
{
ULONG Count;
SYSTEM_MODULE_INFORMATION_ENTRY Module[ANYSIZE_ARRAY];
ULONG Count;
SYSTEM_MODULE_INFORMATION_ENTRY Module[ANYSIZE_ARRAY];
} SYSTEM_MODULE_INFORMATION, * PSYSTEM_MODULE_INFORMATION;
// Function prototype for ZwQuerySystemInformation
NTSYSAPI NTSTATUS NTAPI ZwQuerySystemInformation(
ULONG SystemInformationClass,
PVOID SystemInformation,
ULONG SystemInformationLength,
PULONG ReturnLength
ULONG SystemInformationClass,
PVOID SystemInformation,
ULONG SystemInformationLength,
PULONG ReturnLength
);
typedef struct _LDR_DATA_TABLE_ENTRY
{
LIST_ENTRY64 InLoadOrderLinks;
PVOID ExceptionTable;
ULONG ExceptionTableSize;
PVOID GpValue;
PVOID NonPagedDebugInfo;
PVOID ImageBase;
PVOID EntryPoint;
ULONG SizeOfImage;
UNICODE_STRING FullImageName;
UNICODE_STRING BaseImageName;
ULONG Flags;
USHORT LoadCount;
USHORT TlsIndex;
LIST_ENTRY64 HashLinks;
PVOID SectionPointer;
ULONG CheckSum;
ULONG TimeDateStamp;
PVOID LoadedImports;
PVOID EntryPointActivationContext;
PVOID PatchInformation;
LIST_ENTRY64 InLoadOrderLinks;
PVOID ExceptionTable;
ULONG ExceptionTableSize;
PVOID GpValue;
PVOID NonPagedDebugInfo;
PVOID ImageBase;
PVOID EntryPoint;
ULONG SizeOfImage;
UNICODE_STRING FullImageName;
UNICODE_STRING BaseImageName;
ULONG Flags;
USHORT LoadCount;
USHORT TlsIndex;
LIST_ENTRY64 HashLinks;
PVOID SectionPointer;
ULONG CheckSum;
ULONG TimeDateStamp;
PVOID LoadedImports;
PVOID EntryPointActivationContext;
PVOID PatchInformation;
} LDR_DATA_TABLE_ENTRY, * PLDR_DATA_TABLE_ENTRY;
typedef PVOID(NTAPI* t_RtlImageDirectoryEntryToData)(
IN PVOID Base,
IN BOOLEAN MappedAsImage,
IN USHORT DirectoryEntry,
OUT PULONG Size
);
IN PVOID Base,
IN BOOLEAN MappedAsImage,
IN USHORT DirectoryEntry,
OUT PULONG Size
);
_Success_(return == STATUS_SUCCESS)
@ -71,76 +71,76 @@ _Must_inspect_result_
_IRQL_requires_max_(PASSIVE_LEVEL)
NTSTATUS
DomitoFindDriverBaseAddress(
_In_ STRING ModuleName,
_In_ PFN_DOMITO_ALLOCATE_ROUTINE Allocator,
_Inout_opt_ PVOID * ModuleBase
_In_ STRING ModuleName,
_In_ PFN_DOMITO_ALLOCATE_ROUTINE Allocator,
_Inout_opt_ PVOID * ModuleBase
)
{
ULONG bufferSize = 0;
PSYSTEM_MODULE_INFORMATION moduleInfo = NULL;
ULONG bufferSize = 0;
PSYSTEM_MODULE_INFORMATION moduleInfo = NULL;
const ULONG SystemModuleInformation = 11;
const ULONG SystemModuleInformation = 11;
// Query the required buffer size for module information
NTSTATUS status = ZwQuerySystemInformation(
SystemModuleInformation,
&bufferSize,
0,
&bufferSize
);
// Query the required buffer size for module information
NTSTATUS status = ZwQuerySystemInformation(
SystemModuleInformation,
&bufferSize,
0,
&bufferSize
);
if (status != STATUS_INFO_LENGTH_MISMATCH)
{
return status;
}
if (status != STATUS_INFO_LENGTH_MISMATCH)
{
return status;
}
// Allocate memory for the module information
moduleInfo = (PSYSTEM_MODULE_INFORMATION)Allocator(
bufferSize
);
// Allocate memory for the module information
moduleInfo = (PSYSTEM_MODULE_INFORMATION)Allocator(
bufferSize
);
if (moduleInfo == NULL)
{
return STATUS_INSUFFICIENT_RESOURCES;
}
if (moduleInfo == NULL)
{
return STATUS_INSUFFICIENT_RESOURCES;
}
// Retrieve the module information
status = ZwQuerySystemInformation(
SystemModuleInformation,
moduleInfo,
bufferSize,
NULL
);
// Retrieve the module information
status = ZwQuerySystemInformation(
SystemModuleInformation,
moduleInfo,
bufferSize,
NULL
);
if (!NT_SUCCESS(status))
{
ExFreePool(moduleInfo);
return status;
}
if (!NT_SUCCESS(status))
{
ExFreePool(moduleInfo);
return status;
}
STRING currentImageName;
STRING currentImageName;
status = STATUS_NOT_FOUND;
// Iterate through the loaded modules and find the desired module
for (ULONG i = 0; i < moduleInfo->Count; i++)
{
RtlInitAnsiString(&currentImageName, moduleInfo->Module[i].ImageName);
status = STATUS_NOT_FOUND;
// Iterate through the loaded modules and find the desired module
for (ULONG i = 0; i < moduleInfo->Count; i++)
{
RtlInitAnsiString(&currentImageName, moduleInfo->Module[i].ImageName);
if (0 == RtlCompareString(&ModuleName, &currentImageName, TRUE))
{
// Found the module, store the base address
if (ModuleBase)
{
status = STATUS_SUCCESS;
*ModuleBase = moduleInfo->Module[i].Base;
}
break;
}
}
if (0 == RtlCompareString(&ModuleName, &currentImageName, TRUE))
{
// Found the module, store the base address
if (ModuleBase)
{
status = STATUS_SUCCESS;
*ModuleBase = moduleInfo->Module[i].Base;
}
break;
}
}
ExFreePool(moduleInfo);
ExFreePool(moduleInfo);
return status;
return status;
}
_Success_(return == STATUS_SUCCESS)
@ -148,64 +148,108 @@ _Must_inspect_result_
_IRQL_requires_max_(PASSIVE_LEVEL)
NTSTATUS
DomitoFindExportedFunctionAddress(
_In_ PVOID ModuleBase,
_In_ STRING FunctionName,
_Inout_opt_ PVOID * FunctionAddress
_In_ PVOID ModuleBase,
_In_ STRING FunctionName,
_Inout_opt_ PVOID * FunctionAddress
)
{
NTSTATUS status = STATUS_NOT_FOUND;
ULONG exportSize;
NTSTATUS status = STATUS_NOT_FOUND;
ULONG exportSize;
DECLARE_CONST_UNICODE_STRING(routineName, L"RtlImageDirectoryEntryToData");
DECLARE_CONST_UNICODE_STRING(routineName, L"RtlImageDirectoryEntryToData");
const t_RtlImageDirectoryEntryToData fp_RtlImageDirectoryEntryToData =
(t_RtlImageDirectoryEntryToData)MmGetSystemRoutineAddress((PUNICODE_STRING)&routineName);
const t_RtlImageDirectoryEntryToData fp_RtlImageDirectoryEntryToData =
(t_RtlImageDirectoryEntryToData)MmGetSystemRoutineAddress((PUNICODE_STRING)&routineName);
if (fp_RtlImageDirectoryEntryToData == NULL)
{
return STATUS_NOT_IMPLEMENTED;
}
if (fp_RtlImageDirectoryEntryToData == NULL)
{
return STATUS_NOT_IMPLEMENTED;
}
// Retrieve the export directory information
const PIMAGE_EXPORT_DIRECTORY exportDirectory = (PIMAGE_EXPORT_DIRECTORY)fp_RtlImageDirectoryEntryToData(
ModuleBase,
TRUE,
IMAGE_DIRECTORY_ENTRY_EXPORT,
&exportSize
);
// Retrieve the export directory information
const PIMAGE_EXPORT_DIRECTORY exportDirectory = (PIMAGE_EXPORT_DIRECTORY)fp_RtlImageDirectoryEntryToData(
ModuleBase,
TRUE,
IMAGE_DIRECTORY_ENTRY_EXPORT,
&exportSize
);
if (exportDirectory == NULL)
{
return STATUS_INVALID_IMAGE_FORMAT;
}
if (exportDirectory == NULL)
{
return STATUS_INVALID_IMAGE_FORMAT;
}
STRING currentFunctionName;
STRING currentFunctionName;
const PULONG functionAddresses = (PULONG)((ULONG_PTR)ModuleBase + exportDirectory->AddressOfFunctions);
const PULONG functionNames = (PULONG)((ULONG_PTR)ModuleBase + exportDirectory->AddressOfNames);
const PUSHORT functionOrdinals = (PUSHORT)((ULONG_PTR)ModuleBase + exportDirectory->AddressOfNameOrdinals);
const PULONG functionAddresses = (PULONG)((ULONG_PTR)ModuleBase + exportDirectory->AddressOfFunctions);
const PULONG functionNames = (PULONG)((ULONG_PTR)ModuleBase + exportDirectory->AddressOfNames);
const PUSHORT functionOrdinals = (PUSHORT)((ULONG_PTR)ModuleBase + exportDirectory->AddressOfNameOrdinals);
for (ULONG i = 0; i < exportDirectory->NumberOfNames; i++)
{
const char* functionName = (const char*)((ULONG_PTR)ModuleBase + functionNames[i]);
const USHORT functionOrdinal = functionOrdinals[i];
UNREFERENCED_PARAMETER(functionOrdinal);
for (ULONG i = 0; i < exportDirectory->NumberOfNames; i++)
{
const char* functionName = (const char*)((ULONG_PTR)ModuleBase + functionNames[i]);
const USHORT functionOrdinal = functionOrdinals[i];
UNREFERENCED_PARAMETER(functionOrdinal);
const ULONG functionRva = functionAddresses[i];
const PVOID functionAddress = (PVOID)((ULONG_PTR)ModuleBase + functionRva);
const ULONG functionRva = functionAddresses[i];
const PVOID functionAddress = (PVOID)((ULONG_PTR)ModuleBase + functionRva);
RtlInitAnsiString(&currentFunctionName, functionName);
RtlInitAnsiString(&currentFunctionName, functionName);
if (0 == RtlCompareString(&FunctionName, &currentFunctionName, TRUE))
{
if (FunctionAddress)
{
status = STATUS_SUCCESS;
*FunctionAddress = functionAddress;
}
break;
}
}
if (0 == RtlCompareString(&FunctionName, &currentFunctionName, TRUE))
{
if (FunctionAddress)
{
status = STATUS_SUCCESS;
*FunctionAddress = functionAddress;
}
break;
}
}
return status;
return status;
}
_Success_(return == STATUS_SUCCESS)
_Must_inspect_result_
_IRQL_requires_max_(DISPATCH_LEVEL)
NTSTATUS
DomitoMemorySearchPattern(
_In_ PCUCHAR pcPattern,
_In_ UCHAR uWildcard,
_In_ SIZE_T puLen,
_In_ PVOID pcBase,
_In_ SIZE_T puSize,
_Outptr_result_maybenull_ PVOID * ppMatch
)
{
ASSERT(ppMatch != NULL && pcPattern != NULL && pcBase != NULL);
if (ppMatch == NULL || pcPattern == NULL || pcBase == NULL)
{
return STATUS_INVALID_PARAMETER;
}
*ppMatch = NULL;
for (SIZE_T i = 0; i < puSize - puLen; i++)
{
BOOLEAN found = TRUE;
for (SIZE_T j = 0; j < puLen; j++)
{
if (pcPattern[j] != uWildcard && pcPattern[j] != ((PCUCHAR)pcBase)[i + j])
{
found = FALSE;
break;
}
}
if (found)
{
*ppMatch = (PUCHAR)pcBase + i;
return STATUS_SUCCESS;
}
}
return STATUS_NOT_FOUND;
}