PPH_STRING PhpGetThreadBasicStartAddress(
__in PPH_THREAD_PROVIDER ThreadProvider,
__in ULONG64 Address,
__out PPH_SYMBOL_RESOLVE_LEVEL ResolveLevel
)
{
ULONG64 modBase;
PPH_STRING fileName = NULL;
PPH_STRING baseName = NULL;
PPH_STRING symbol;
modBase = PhGetModuleFromAddress(
ThreadProvider->SymbolProvider,
Address,
&fileName
);
if (fileName == NULL)
{
*ResolveLevel = PhsrlAddress;
symbol = PhCreateStringEx(NULL, PH_PTR_STR_LEN * 2);
PhPrintPointer(symbol->Buffer, (PVOID)Address);
PhTrimToNullTerminatorString(symbol);
}
else
{
PH_FORMAT format[3];
baseName = PhGetBaseName(fileName);
*ResolveLevel = PhsrlModule;
PhInitFormatSR(&format[0], baseName->sr);
PhInitFormatS(&format[1], L"+0x");
PhInitFormatIX(&format[2], (ULONG_PTR)(Address - modBase));
symbol = PhFormat(format, 3, baseName->Length + 6 + 32);
}
if (fileName)
PhDereferenceObject(fileName);
if (baseName)
PhDereferenceObject(baseName);
return symbol;
}
VOID PhpHandlePluginLoadError(
_In_ PPH_STRING FileName,
_In_opt_ PPH_STRING ErrorMessage
)
{
PPH_STRING baseName;
baseName = PhGetBaseName(FileName);
if (PhShowMessage(
NULL,
MB_ICONERROR | MB_YESNO,
L"Unable to load %s: %s\nDo you want to disable the plugin?",
baseName->Buffer,
PhGetStringOrDefault(ErrorMessage, L"An unknown error occurred.")
) == IDYES)
{
PhSetPluginDisabled(&baseName->sr, TRUE);
}
PhDereferenceObject(baseName);
}
static PPH_STRING EtpGetBasicSymbol(
_In_ PPH_SYMBOL_PROVIDER SymbolProvider,
_In_ ULONG64 Address
)
{
ULONG64 modBase;
PPH_STRING fileName = NULL;
PPH_STRING baseName = NULL;
PPH_STRING symbol;
modBase = PhGetModuleFromAddress(SymbolProvider, Address, &fileName);
if (!fileName)
{
symbol = PhCreateStringEx(NULL, PH_PTR_STR_LEN * 2);
PhPrintPointer(symbol->Buffer, (PVOID)Address);
PhTrimToNullTerminatorString(symbol);
}
else
{
PH_FORMAT format[3];
baseName = PhGetBaseName(fileName);
PhInitFormatSR(&format[0], baseName->sr);
PhInitFormatS(&format[1], L"+0x");
PhInitFormatIX(&format[2], (ULONG_PTR)(Address - modBase));
symbol = PhFormat(format, 3, baseName->Length + 6 + 32);
}
if (fileName)
PhDereferenceObject(fileName);
if (baseName)
PhDereferenceObject(baseName);
return symbol;
}
PPH_STRING PhGetSymbolFromAddress(
_In_ PPH_SYMBOL_PROVIDER SymbolProvider,
_In_ ULONG64 Address,
_Out_opt_ PPH_SYMBOL_RESOLVE_LEVEL ResolveLevel,
_Out_opt_ PPH_STRING *FileName,
_Out_opt_ PPH_STRING *SymbolName,
_Out_opt_ PULONG64 Displacement
)
{
PSYMBOL_INFOW symbolInfo;
ULONG nameLength;
PPH_STRING symbol = NULL;
PH_SYMBOL_RESOLVE_LEVEL resolveLevel;
ULONG64 displacement;
PPH_STRING modFileName = NULL;
PPH_STRING modBaseName = NULL;
ULONG64 modBase;
PPH_STRING symbolName = NULL;
if (!SymFromAddrW_I && !SymFromAddr_I)
return NULL;
if (Address == 0)
{
if (ResolveLevel) *ResolveLevel = PhsrlInvalid;
if (FileName) *FileName = NULL;
if (SymbolName) *SymbolName = NULL;
if (Displacement) *Displacement = 0;
return NULL;
}
#ifdef PH_SYMBOL_PROVIDER_DELAY_INIT
PhpRegisterSymbolProvider(SymbolProvider);
#endif
symbolInfo = PhAllocate(FIELD_OFFSET(SYMBOL_INFOW, Name) + PH_MAX_SYMBOL_NAME_LEN * 2);
memset(symbolInfo, 0, sizeof(SYMBOL_INFOW));
symbolInfo->SizeOfStruct = sizeof(SYMBOL_INFOW);
symbolInfo->MaxNameLen = PH_MAX_SYMBOL_NAME_LEN;
// Get the symbol name.
PH_LOCK_SYMBOLS();
// Note that we don't care whether this call
// succeeds or not, based on the assumption that
// it will not write to the symbolInfo structure
// if it fails. We've already zeroed the structure,
// so we can deal with it.
if (SymFromAddrW_I)
{
SymFromAddrW_I(
SymbolProvider->ProcessHandle,
Address,
&displacement,
symbolInfo
);
nameLength = symbolInfo->NameLen;
if (nameLength + 1 > PH_MAX_SYMBOL_NAME_LEN)
{
PhFree(symbolInfo);
symbolInfo = PhAllocate(FIELD_OFFSET(SYMBOL_INFOW, Name) + nameLength * 2 + 2);
memset(symbolInfo, 0, sizeof(SYMBOL_INFOW));
symbolInfo->SizeOfStruct = sizeof(SYMBOL_INFOW);
symbolInfo->MaxNameLen = nameLength + 1;
SymFromAddrW_I(
SymbolProvider->ProcessHandle,
Address,
&displacement,
symbolInfo
);
}
}
else if (SymFromAddr_I)
{
PSYMBOL_INFO symbolInfoA;
symbolInfoA = PhAllocate(FIELD_OFFSET(SYMBOL_INFO, Name) + PH_MAX_SYMBOL_NAME_LEN);
memset(symbolInfoA, 0, sizeof(SYMBOL_INFO));
symbolInfoA->SizeOfStruct = sizeof(SYMBOL_INFO);
symbolInfoA->MaxNameLen = PH_MAX_SYMBOL_NAME_LEN;
SymFromAddr_I(
SymbolProvider->ProcessHandle,
Address,
&displacement,
symbolInfoA
);
nameLength = symbolInfoA->NameLen;
if (nameLength + 1 > PH_MAX_SYMBOL_NAME_LEN)
{
PhFree(symbolInfoA);
symbolInfoA = PhAllocate(FIELD_OFFSET(SYMBOL_INFO, Name) + nameLength + 1);
memset(symbolInfoA, 0, sizeof(SYMBOL_INFO));
symbolInfoA->SizeOfStruct = sizeof(SYMBOL_INFO);
symbolInfoA->MaxNameLen = nameLength + 1;
SymFromAddr_I(
SymbolProvider->ProcessHandle,
Address,
&displacement,
symbolInfoA
);
// Also reallocate the Unicode-based buffer.
PhFree(symbolInfo);
symbolInfo = PhAllocate(FIELD_OFFSET(SYMBOL_INFOW, Name) + nameLength * 2 + 2);
memset(symbolInfo, 0, sizeof(SYMBOL_INFOW));
symbolInfo->SizeOfStruct = sizeof(SYMBOL_INFOW);
symbolInfo->MaxNameLen = nameLength + 1;
}
PhpSymbolInfoAnsiToUnicode(symbolInfo, symbolInfoA);
PhFree(symbolInfoA);
}
PH_UNLOCK_SYMBOLS();
// Find the module name.
if (symbolInfo->ModBase == 0)
{
modBase = PhGetModuleFromAddress(
SymbolProvider,
Address,
&modFileName
);
}
else
{
PH_SYMBOL_MODULE lookupSymbolModule;
PPH_AVL_LINKS existingLinks;
PPH_SYMBOL_MODULE symbolModule;
lookupSymbolModule.BaseAddress = symbolInfo->ModBase;
PhAcquireQueuedLockShared(&SymbolProvider->ModulesListLock);
existingLinks = PhFindElementAvlTree(&SymbolProvider->ModulesSet, &lookupSymbolModule.Links);
if (existingLinks)
{
symbolModule = CONTAINING_RECORD(existingLinks, PH_SYMBOL_MODULE, Links);
modFileName = symbolModule->FileName;
PhReferenceObject(modFileName);
}
PhReleaseQueuedLockShared(&SymbolProvider->ModulesListLock);
}
// If we don't have a module name, return an address.
if (!modFileName)
{
resolveLevel = PhsrlAddress;
symbol = PhCreateStringEx(NULL, PH_PTR_STR_LEN * 2);
PhPrintPointer(symbol->Buffer, (PVOID)Address);
PhTrimToNullTerminatorString(symbol);
goto CleanupExit;
}
modBaseName = PhGetBaseName(modFileName);
// If we have a module name but not a symbol name,
// return the module plus an offset: module+offset.
if (symbolInfo->NameLen == 0)
{
PH_FORMAT format[3];
resolveLevel = PhsrlModule;
PhInitFormatSR(&format[0], modBaseName->sr);
PhInitFormatS(&format[1], L"+0x");
PhInitFormatIX(&format[2], (ULONG_PTR)(Address - modBase));
symbol = PhFormat(format, 3, modBaseName->Length + 6 + 32);
goto CleanupExit;
}
// If we have everything, return the full symbol
// name: module!symbol+offset.
symbolName = PhCreateStringEx(
symbolInfo->Name,
symbolInfo->NameLen * 2
);
resolveLevel = PhsrlFunction;
if (displacement == 0)
{
PH_FORMAT format[3];
PhInitFormatSR(&format[0], modBaseName->sr);
PhInitFormatC(&format[1], '!');
PhInitFormatSR(&format[2], symbolName->sr);
symbol = PhFormat(format, 3, modBaseName->Length + 2 + symbolName->Length);
}
else
{
PH_FORMAT format[5];
PhInitFormatSR(&format[0], modBaseName->sr);
PhInitFormatC(&format[1], '!');
PhInitFormatSR(&format[2], symbolName->sr);
PhInitFormatS(&format[3], L"+0x");
PhInitFormatIX(&format[4], (ULONG_PTR)displacement);
symbol = PhFormat(format, 5, modBaseName->Length + 2 + symbolName->Length + 6 + 32);
}
CleanupExit:
if (ResolveLevel)
*ResolveLevel = resolveLevel;
if (FileName)
{
*FileName = modFileName;
if (modFileName)
PhReferenceObject(modFileName);
}
if (SymbolName)
{
*SymbolName = symbolName;
if (symbolName)
PhReferenceObject(symbolName);
}
if (Displacement)
*Displacement = displacement;
if (modFileName)
PhDereferenceObject(modFileName);
if (modBaseName)
PhDereferenceObject(modBaseName);
if (symbolName)
PhDereferenceObject(symbolName);
PhFree(symbolInfo);
return symbol;
}
/**
* Loads plugins from the default plugins directory.
*/
VOID PhLoadPlugins(
VOID
)
{
HANDLE pluginsDirectoryHandle;
PPH_STRING pluginsDirectory;
pluginsDirectory = PhGetStringSetting(L"PluginsDirectory");
if (RtlDetermineDosPathNameType_U(pluginsDirectory->Buffer) == RtlPathTypeRelative)
{
// Not absolute. Make sure it is.
PluginsDirectory = PhConcatStrings(4, PhApplicationDirectory->Buffer, L"\\", pluginsDirectory->Buffer, L"\\");
PhDereferenceObject(pluginsDirectory);
}
else
{
PluginsDirectory = pluginsDirectory;
}
if (NT_SUCCESS(PhCreateFileWin32(
&pluginsDirectoryHandle,
PluginsDirectory->Buffer,
FILE_GENERIC_READ,
0,
FILE_SHARE_READ,
FILE_OPEN,
FILE_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT
)))
{
UNICODE_STRING pattern = RTL_CONSTANT_STRING(L"*.dll");
PhEnumDirectoryFile(pluginsDirectoryHandle, &pattern, EnumPluginsDirectoryCallback, NULL);
NtClose(pluginsDirectoryHandle);
}
// Handle load errors.
// In certain startup modes we want to ignore all plugin load errors.
if (LoadErrors && LoadErrors->Count != 0 && !PhStartupParameters.PhSvc)
{
PH_STRING_BUILDER sb;
ULONG i;
PPHP_PLUGIN_LOAD_ERROR loadError;
PPH_STRING baseName;
PhInitializeStringBuilder(&sb, 100);
PhAppendStringBuilder2(&sb, L"Unable to load the following plugin(s):\n\n");
for (i = 0; i < LoadErrors->Count; i++)
{
loadError = LoadErrors->Items[i];
baseName = PhGetBaseName(loadError->FileName);
PhAppendFormatStringBuilder(&sb, L"%s: %s\n",
baseName->Buffer, PhGetStringOrDefault(loadError->ErrorMessage, L"An unknown error occurred."));
PhDereferenceObject(baseName);
}
PhAppendStringBuilder2(&sb, L"\nDo you want to disable the above plugin(s)?");
if (PhShowMessage(
NULL,
MB_ICONERROR | MB_YESNO,
sb.String->Buffer
) == IDYES)
{
ULONG i;
for (i = 0; i < LoadErrors->Count; i++)
{
loadError = LoadErrors->Items[i];
baseName = PhGetBaseName(loadError->FileName);
PhSetPluginDisabled(&baseName->sr, TRUE);
PhDereferenceObject(baseName);
}
}
PhDeleteStringBuilder(&sb);
}
// When we loaded settings before, we didn't know about plugin settings, so they
// went into the ignored settings list. Now that they've had a chance to add
// settings, we should scan the ignored settings list and move the settings to
// the right places.
if (PhSettingsFileName)
PhConvertIgnoredSettings();
PhpExecuteCallbackForAllPlugins(PluginCallbackLoad, TRUE);
}
static PPH_PROCESS_ITEM PhpCreateProcessItemForHiddenProcess(
_In_ PPH_HIDDEN_PROCESS_ENTRY Entry
)
{
NTSTATUS status;
PPH_PROCESS_ITEM processItem;
PPH_PROCESS_ITEM idleProcessItem;
HANDLE processHandle;
PROCESS_BASIC_INFORMATION basicInfo;
KERNEL_USER_TIMES times;
PROCESS_PRIORITY_CLASS priorityClass;
ULONG handleCount;
HANDLE processHandle2;
if (Entry->Type == NormalProcess)
{
processItem = PhReferenceProcessItem(Entry->ProcessId);
if (processItem)
return processItem;
}
processItem = PhCreateProcessItem(Entry->ProcessId);
// Mark the process as terminated if necessary.
if (Entry->Type == TerminatedProcess)
processItem->State |= PH_PROCESS_ITEM_REMOVED;
// We need a process record. Just use the record of System Idle Process.
if (idleProcessItem = PhReferenceProcessItem(SYSTEM_IDLE_PROCESS_ID))
{
processItem->Record = idleProcessItem->Record;
PhReferenceProcessRecord(processItem->Record);
}
else
{
PhDereferenceObject(processItem);
return NULL;
}
// Set up the file name and process name.
PhSwapReference(&processItem->FileName, Entry->FileName);
if (processItem->FileName)
{
processItem->ProcessName = PhGetBaseName(processItem->FileName);
}
else
{
processItem->ProcessName = PhCreateString(L"Unknown");
}
if (ProcessesMethod == BruteForceScanMethod)
{
status = PhOpenProcess(
&processHandle,
ProcessQueryAccess,
Entry->ProcessId
);
}
else
{
status = PhOpenProcessByCsrHandles(
&processHandle,
ProcessQueryAccess,
Entry->ProcessId
);
}
if (NT_SUCCESS(status))
{
// Basic information and not-so-dynamic information
processItem->QueryHandle = processHandle;
if (NT_SUCCESS(PhGetProcessBasicInformation(processHandle, &basicInfo)))
{
processItem->ParentProcessId = basicInfo.InheritedFromUniqueProcessId;
processItem->BasePriority = basicInfo.BasePriority;
}
PhGetProcessSessionId(processHandle, &processItem->SessionId);
PhPrintUInt32(processItem->ParentProcessIdString, HandleToUlong(processItem->ParentProcessId));
PhPrintUInt32(processItem->SessionIdString, processItem->SessionId);
if (NT_SUCCESS(PhGetProcessTimes(processHandle, ×)))
{
processItem->CreateTime = times.CreateTime;
processItem->KernelTime = times.KernelTime;
processItem->UserTime = times.UserTime;
}
// TODO: Token information?
if (NT_SUCCESS(NtQueryInformationProcess(
processHandle,
ProcessPriorityClass,
&priorityClass,
sizeof(PROCESS_PRIORITY_CLASS),
NULL
)))
{
processItem->PriorityClass = priorityClass.PriorityClass;
}
if (NT_SUCCESS(NtQueryInformationProcess(
processHandle,
ProcessHandleCount,
&handleCount,
sizeof(ULONG),
NULL
)))
{
processItem->NumberOfHandles = handleCount;
}
}
// Stage 1
// Some copy and paste magic here...
if (processItem->FileName)
{
// Small icon, large icon.
ExtractIconEx(
processItem->FileName->Buffer,
0,
&processItem->LargeIcon,
&processItem->SmallIcon,
1
);
// Version info.
PhInitializeImageVersionInfo(&processItem->VersionInfo, processItem->FileName->Buffer);
}
// Use the default EXE icon if we didn't get the file's icon.
{
if (!processItem->SmallIcon || !processItem->LargeIcon)
{
if (processItem->SmallIcon)
{
DestroyIcon(processItem->SmallIcon);
processItem->SmallIcon = NULL;
}
else if (processItem->LargeIcon)
{
DestroyIcon(processItem->LargeIcon);
processItem->LargeIcon = NULL;
}
PhGetStockApplicationIcon(&processItem->SmallIcon, &processItem->LargeIcon);
processItem->SmallIcon = DuplicateIcon(NULL, processItem->SmallIcon);
processItem->LargeIcon = DuplicateIcon(NULL, processItem->LargeIcon);
}
}
// POSIX, command line
status = PhOpenProcess(
&processHandle2,
ProcessQueryAccess | PROCESS_VM_READ,
Entry->ProcessId
);
if (NT_SUCCESS(status))
{
BOOLEAN isPosix = FALSE;
PPH_STRING commandLine;
ULONG i;
status = PhGetProcessIsPosix(processHandle2, &isPosix);
processItem->IsPosix = isPosix;
if (!NT_SUCCESS(status) || !isPosix)
{
status = PhGetProcessCommandLine(processHandle2, &commandLine);
if (NT_SUCCESS(status))
{
// Some command lines (e.g. from taskeng.exe) have nulls in them.
// Since Windows can't display them, we'll replace them with
// spaces.
for (i = 0; i < (ULONG)commandLine->Length / 2; i++)
{
if (commandLine->Buffer[i] == 0)
commandLine->Buffer[i] = ' ';
}
}
}
else
{
// Get the POSIX command line.
status = PhGetProcessPosixCommandLine(processHandle2, &commandLine);
}
if (NT_SUCCESS(status))
{
processItem->CommandLine = commandLine;
}
NtClose(processHandle2);
}
// TODO: Other stage 1 tasks.
PhSetEvent(&processItem->Stage1Event);
return processItem;
}
static VOID DbgProcessLogMessageEntry(
_Inout_ PPH_DBGEVENTS_CONTEXT Context,
_In_ BOOLEAN GlobalEvents
)
{
NTSTATUS status;
PDBWIN_PAGE_BUFFER debugMessageBuffer;
PDEBUG_LOG_ENTRY entry = NULL;
HANDLE processHandle = NULL;
PPH_STRING fileName = NULL;
HICON icon = NULL;
debugMessageBuffer = GlobalEvents ? Context->GlobalDebugBuffer : Context->LocalDebugBuffer;
entry = PhAllocate(sizeof(DEBUG_LOG_ENTRY));
memset(entry, 0, sizeof(DEBUG_LOG_ENTRY));
PhQuerySystemTime(&entry->Time);
entry->ProcessId = UlongToHandle(debugMessageBuffer->ProcessId);
entry->Message = PhConvertMultiByteToUtf16(debugMessageBuffer->Buffer);
if (WINDOWS_HAS_IMAGE_FILE_NAME_BY_PROCESS_ID)
{
status = PhGetProcessImageFileNameByProcessId(entry->ProcessId, &fileName);
}
else
{
if (NT_SUCCESS(status = PhOpenProcess(&processHandle, ProcessQueryAccess, entry->ProcessId)))
{
status = PhGetProcessImageFileName(processHandle, &fileName);
NtClose(processHandle);
}
}
if (!NT_SUCCESS(status))
fileName = PhGetKernelFileName();
PhSwapReference2(&fileName, PhGetFileName(fileName));
icon = PhGetFileShellIcon(PhGetString(fileName), L".exe", TRUE);
if (icon)
{
entry->ImageIndex = ImageList_AddIcon(Context->ListViewImageList, icon);
DestroyIcon(icon);
}
entry->FilePath = fileName;
entry->ProcessName = PhGetBaseName(fileName);
// Drop event if it matches a filter
for (ULONG i = 0; i < Context->ExcludeList->Count; i++)
{
PDBG_FILTER_TYPE filterEntry = Context->ExcludeList->Items[i];
if (filterEntry->Type == FilterByName)
{
if (PhEqualString(filterEntry->ProcessName, entry->ProcessName, TRUE))
{
DbgFreeLogEntry(entry);
return;
}
}
else if (filterEntry->Type == FilterByPid)
{
if (filterEntry->ProcessId == entry->ProcessId)
{
DbgFreeLogEntry(entry);
return;
}
}
}
DbgAddLogEntry(Context, entry);
}
