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cmd-analysis.cpp
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cmd-analysis.cpp
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#include "cmd-analysis.h"
#include "ntdll/ntdll.h"
#include "linearanalysis.h"
#include "memory.h"
#include "exceptiondirectoryanalysis.h"
#include "controlflowanalysis.h"
#include "analysis_nukem.h"
#include "xrefsanalysis.h"
#include "recursiveanalysis.h"
#include "value.h"
#include "advancedanalysis.h"
#include "debugger.h"
#include "variable.h"
#include "exhandlerinfo.h"
#include "symbolinfo.h"
#include "exception.h"
#include "TraceRecord.h"
#include "dbghelp_safe.h"
bool cbInstrAnalyse(int argc, char* argv[])
{
SELECTIONDATA sel;
GuiSelectionGet(GUI_DISASSEMBLY, &sel);
duint size = 0;
duint base = MemFindBaseAddr(sel.start, &size);
LinearAnalysis anal(base, size);
anal.Analyse();
anal.SetMarkers();
GuiUpdateAllViews();
return true;
}
bool cbInstrExanalyse(int argc, char* argv[])
{
SELECTIONDATA sel;
GuiSelectionGet(GUI_DISASSEMBLY, &sel);
duint size = 0;
duint base = MemFindBaseAddr(sel.start, &size);
ExceptionDirectoryAnalysis anal(base, size);
anal.Analyse();
anal.SetMarkers();
GuiUpdateAllViews();
return true;
}
bool cbInstrCfanalyse(int argc, char* argv[])
{
bool exceptionDirectory = false;
if(argc > 1)
exceptionDirectory = true;
SELECTIONDATA sel;
GuiSelectionGet(GUI_DISASSEMBLY, &sel);
duint size = 0;
duint base = MemFindBaseAddr(sel.start, &size);
ControlFlowAnalysis anal(base, size, exceptionDirectory);
anal.Analyse();
anal.SetMarkers();
GuiUpdateAllViews();
return true;
}
bool cbInstrAnalyseNukem(int argc, char* argv[])
{
SELECTIONDATA sel;
GuiSelectionGet(GUI_DISASSEMBLY, &sel);
duint size = 0;
duint base = MemFindBaseAddr(sel.start, &size);
Analyse_nukem(base, size);
GuiUpdateAllViews();
return true;
}
bool cbInstrAnalxrefs(int argc, char* argv[])
{
SELECTIONDATA sel;
GuiSelectionGet(GUI_DISASSEMBLY, &sel);
duint size = 0;
auto base = MemFindBaseAddr(sel.start, &size);
XrefsAnalysis anal(base, size);
anal.Analyse();
anal.SetMarkers();
GuiUpdateAllViews();
return true;
}
bool cbInstrAnalrecur(int argc, char* argv[])
{
if(IsArgumentsLessThan(argc, 2))
return false;
duint entry;
if(!valfromstring(argv[1], &entry, false))
return false;
duint size;
auto base = MemFindBaseAddr(entry, &size);
if(!base)
return false;
RecursiveAnalysis analysis(base, size, entry, true);
analysis.Analyse();
analysis.SetMarkers();
return true;
}
bool cbInstrAnalyseadv(int argc, char* argv[])
{
SELECTIONDATA sel;
GuiSelectionGet(GUI_DISASSEMBLY, &sel);
duint size = 0;
auto base = MemFindBaseAddr(sel.start, &size);
AdvancedAnalysis anal(base, size);
anal.Analyse();
anal.SetMarkers();
GuiUpdateAllViews();
return true;
}
bool cbInstrVirtualmod(int argc, char* argv[])
{
if(IsArgumentsLessThan(argc, 3))
return false;
duint base;
if(!valfromstring(argv[2], &base))
{
dputs(QT_TRANSLATE_NOOP("DBG", "Invalid parameter [base]!"));
return false;
}
if(!MemIsValidReadPtr(base))
{
dputs(QT_TRANSLATE_NOOP("DBG", "Invalid memory address!"));
return false;
}
duint size;
if(argc < 4)
base = MemFindBaseAddr(base, &size);
else if(!valfromstring(argv[3], &size))
{
dputs(QT_TRANSLATE_NOOP("DBG", "Invalid parameter [size]"));
return false;
}
auto name = String("virtual:\\") + (argv[1]);
if(!ModLoad(base, size, name.c_str()))
{
dputs(QT_TRANSLATE_NOOP("DBG", "Failed to load module (ModLoad)..."));
return false;
}
char modname[256] = "";
if(ModNameFromAddr(base, modname, true))
BpEnumAll(cbSetModuleBreakpoints, modname);
dprintf(QT_TRANSLATE_NOOP("DBG", "Virtual module \"%s\" loaded on %p[%p]!\n"), argv[1], base, size);
GuiUpdateAllViews();
return true;
}
bool cbDebugDownloadSymbol(int argc, char* argv[])
{
dputs(QT_TRANSLATE_NOOP("DBG", "This may take very long, depending on your network connection and data in the debug directory..."));
Memory<char*> szDefaultStore(MAX_SETTING_SIZE + 1);
const char* szSymbolStore = szDefaultStore();
if(!BridgeSettingGet("Symbols", "DefaultStore", szDefaultStore())) //get default symbol store from settings
{
strcpy_s(szDefaultStore(), MAX_SETTING_SIZE, "https://msdl.microsoft.com/download/symbols");
BridgeSettingSet("Symbols", "DefaultStore", szDefaultStore());
}
if(argc < 2) //no arguments
{
SymDownloadAllSymbols(szSymbolStore); //download symbols for all modules
GuiSymbolRefreshCurrent();
dputs(QT_TRANSLATE_NOOP("DBG", "Done! See symbol log for more information"));
return true;
}
//get some module information
duint modbase = ModBaseFromName(argv[1]);
if(!modbase)
{
dprintf(QT_TRANSLATE_NOOP("DBG", "Invalid module \"%s\"!\n"), argv[1]);
return false;
}
if(argc > 2)
szSymbolStore = argv[2];
if(!SymDownloadSymbol(modbase, szSymbolStore))
{
dputs(QT_TRANSLATE_NOOP("DBG", "Symbol download failed... See symbol log for more information"));
return false;
}
GuiSymbolRefreshCurrent();
dputs(QT_TRANSLATE_NOOP("DBG", "Done! See symbol log for more information"));
return true;
}
bool cbDebugLoadSymbol(int argc, char* argv[])
{
if(IsArgumentsLessThan(argc, 3))
return false;
//get some module information
duint modbase = ModBaseFromName(argv[1]);
if(!modbase)
{
dprintf(QT_TRANSLATE_NOOP("DBG", "Invalid module \"%s\"!\n"), argv[1]);
return false;
}
auto pdbFile = argv[2];
if(!FileExists(pdbFile))
{
dputs(QT_TRANSLATE_NOOP("DBG", "File does not exist!"));
return false;
}
bool forceLoad = argc > 3 && DbgEval(argv[3]);
EXCLUSIVE_ACQUIRE(LockModules);
auto info = ModInfoFromAddr(modbase);
if(!info)
{
// TODO: this really isn't supposed to happen, but could if the module is suddenly unloaded
dputs("module not found...");
return false;
}
// trigger a symbol load
if(!info->loadSymbols(pdbFile, forceLoad))
{
dputs(QT_TRANSLATE_NOOP("DBG", "Symbol load failed... See symbol log for more information"));
return false;
}
GuiSymbolRefreshCurrent();
dputs(QT_TRANSLATE_NOOP("DBG", "Done! See symbol log for more information"));
return true;
}
bool cbInstrImageinfo(int argc, char* argv[])
{
duint address;
if(argc < 2)
address = GetContextDataEx(hActiveThread, UE_CIP);
else if(!valfromstring(argv[1], &address))
{
dputs(QT_TRANSLATE_NOOP("DBG", "Invalid argument"));
return false;
}
duint c, dllc, mod;
{
SHARED_ACQUIRE(LockModules);
auto modinfo = ModInfoFromAddr(address);
if(!modinfo)
{
dputs(QT_TRANSLATE_NOOP("DBG", "Invalid argument"));
return false;
}
c = GetPE32DataFromMappedFile(modinfo->fileMapVA, 0, UE_CHARACTERISTICS);
dllc = GetPE32DataFromMappedFile(modinfo->fileMapVA, 0, UE_DLLCHARACTERISTICS);
mod = modinfo->base;
}
auto pFlag = [](ULONG_PTR value, ULONG_PTR flag, const char* name)
{
if((value & flag) == flag)
{
dprintf(" ");
dputs(name);
}
};
char modname[MAX_MODULE_SIZE] = "";
ModNameFromAddr(mod, modname, true);
dputs_untranslated("---------------");
dprintf(QT_TRANSLATE_NOOP("DBG", "Image information for %s\n"), modname);
dprintf(QT_TRANSLATE_NOOP("DBG", "Characteristics (0x%X):\n"), DWORD(c));
if(!c)
dputs(QT_TRANSLATE_NOOP("DBG", " None\n"));
pFlag(c, IMAGE_FILE_RELOCS_STRIPPED, QT_TRANSLATE_NOOP("DBG", "IMAGE_FILE_RELOCS_STRIPPED: Relocation info stripped from file."));
pFlag(c, IMAGE_FILE_EXECUTABLE_IMAGE, QT_TRANSLATE_NOOP("DBG", "IMAGE_FILE_EXECUTABLE_IMAGE: File is executable (i.e. no unresolved externel references)."));
pFlag(c, IMAGE_FILE_LINE_NUMS_STRIPPED, QT_TRANSLATE_NOOP("DBG", "IMAGE_FILE_LINE_NUMS_STRIPPED: Line numbers stripped from file."));
pFlag(c, IMAGE_FILE_LOCAL_SYMS_STRIPPED, QT_TRANSLATE_NOOP("DBG", "IMAGE_FILE_LOCAL_SYMS_STRIPPED: Local symbols stripped from file."));
pFlag(c, IMAGE_FILE_AGGRESIVE_WS_TRIM, QT_TRANSLATE_NOOP("DBG", "IMAGE_FILE_AGGRESIVE_WS_TRIM: Agressively trim working set"));
pFlag(c, IMAGE_FILE_LARGE_ADDRESS_AWARE, QT_TRANSLATE_NOOP("DBG", "IMAGE_FILE_LARGE_ADDRESS_AWARE: App can handle >2gb addresses"));
pFlag(c, IMAGE_FILE_BYTES_REVERSED_LO, QT_TRANSLATE_NOOP("DBG", "IMAGE_FILE_BYTES_REVERSED_LO: Bytes of machine word are reversed."));
pFlag(c, IMAGE_FILE_32BIT_MACHINE, QT_TRANSLATE_NOOP("DBG", "IMAGE_FILE_32BIT_MACHINE: 32 bit word machine."));
pFlag(c, IMAGE_FILE_DEBUG_STRIPPED, QT_TRANSLATE_NOOP("DBG", "IMAGE_FILE_DEBUG_STRIPPED: Debugging info stripped from file in .DBG file"));
pFlag(c, IMAGE_FILE_REMOVABLE_RUN_FROM_SWAP, QT_TRANSLATE_NOOP("DBG", "IMAGE_FILE_REMOVABLE_RUN_FROM_SWAP: If Image is on removable media, copy and run from the swap file."));
pFlag(c, IMAGE_FILE_NET_RUN_FROM_SWAP, QT_TRANSLATE_NOOP("DBG", "IMAGE_FILE_NET_RUN_FROM_SWAP: If Image is on Net, copy and run from the swap file."));
pFlag(c, IMAGE_FILE_SYSTEM, QT_TRANSLATE_NOOP("DBG", "IMAGE_FILE_SYSTEM: System File."));
pFlag(c, IMAGE_FILE_DLL, QT_TRANSLATE_NOOP("DBG", "IMAGE_FILE_DLL: File is a DLL."));
pFlag(c, IMAGE_FILE_UP_SYSTEM_ONLY, QT_TRANSLATE_NOOP("DBG", "IMAGE_FILE_UP_SYSTEM_ONLY: File should only be run on a UP machine"));
pFlag(c, IMAGE_FILE_BYTES_REVERSED_HI, QT_TRANSLATE_NOOP("DBG", "IMAGE_FILE_BYTES_REVERSED_HI: Bytes of machine word are reversed."));
dprintf(QT_TRANSLATE_NOOP("DBG", "DLL Characteristics (0x%X):\n"), DWORD(dllc));
if(!dllc)
dputs(QT_TRANSLATE_NOOP("DBG", " None\n"));
pFlag(dllc, IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE, QT_TRANSLATE_NOOP("DBG", "IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE: DLL can move."));
pFlag(dllc, IMAGE_DLLCHARACTERISTICS_FORCE_INTEGRITY, QT_TRANSLATE_NOOP("DBG", "IMAGE_DLLCHARACTERISTICS_FORCE_INTEGRITY: Code Integrity Image"));
pFlag(dllc, IMAGE_DLLCHARACTERISTICS_NX_COMPAT, QT_TRANSLATE_NOOP("DBG", "IMAGE_DLLCHARACTERISTICS_NX_COMPAT: Image is NX compatible"));
pFlag(dllc, IMAGE_DLLCHARACTERISTICS_NO_ISOLATION, QT_TRANSLATE_NOOP("DBG", "IMAGE_DLLCHARACTERISTICS_NO_ISOLATION: Image understands isolation and doesn't want it"));
pFlag(dllc, IMAGE_DLLCHARACTERISTICS_NO_SEH, QT_TRANSLATE_NOOP("DBG", "IMAGE_DLLCHARACTERISTICS_NO_SEH: Image does not use SEH. No SE handler may reside in this image"));
pFlag(dllc, IMAGE_DLLCHARACTERISTICS_NO_BIND, QT_TRANSLATE_NOOP("DBG", "IMAGE_DLLCHARACTERISTICS_NO_BIND: Do not bind this image."));
pFlag(dllc, IMAGE_DLLCHARACTERISTICS_WDM_DRIVER, QT_TRANSLATE_NOOP("DBG", "IMAGE_DLLCHARACTERISTICS_WDM_DRIVER: Driver uses WDM model."));
pFlag(dllc, IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE, QT_TRANSLATE_NOOP("DBG", "IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE: Remote Desktop Services aware."));
dputs_untranslated("---------------");
return true;
}
bool cbInstrGetRelocSize(int argc, char* argv[])
{
//Original tool "GetRelocSize" by Killboy/SND
if(argc < 2)
{
_plugin_logputs(QT_TRANSLATE_NOOP("DBG", "Not enough arguments!"));
return false;
}
duint RelocDirAddr;
if(!valfromstring(argv[1], &RelocDirAddr, false))
return false;
duint RelocSize = 0;
varset("$result", RelocSize, false);
IMAGE_RELOCATION RelocDir;
do
{
if(!MemRead(RelocDirAddr, &RelocDir, sizeof(IMAGE_RELOCATION)))
{
_plugin_logputs(QT_TRANSLATE_NOOP("DBG", "Invalid relocation table!"));
return false;
}
if(!RelocDir.SymbolTableIndex)
break;
RelocSize += RelocDir.SymbolTableIndex;
RelocDirAddr += RelocDir.SymbolTableIndex;
}
while(RelocDir.VirtualAddress);
if(!RelocSize)
{
_plugin_logputs(QT_TRANSLATE_NOOP("DBG", "Invalid relocation table!"));
return false;
}
varset("$result", RelocSize, false);
_plugin_logprintf(QT_TRANSLATE_NOOP("DBG", "Relocation table size: %X\n"), RelocSize);
return true;
}
static void printExhandlers(const char* name, const std::vector<duint> & entries)
{
if(!entries.size())
return;
dprintf("%s:\n", name);
for(auto entry : entries)
{
auto symbolic = SymGetSymbolicName(entry);
if(symbolic.length())
dprintf_untranslated("%p %s\n", entry, symbolic.c_str());
else
dprintf_untranslated("%p\n", entry);
}
}
bool cbInstrExhandlers(int argc, char* argv[])
{
std::vector<duint> entries;
#ifndef _WIN64
if(ExHandlerGetInfo(EX_HANDLER_SEH, entries))
{
std::vector<duint> handlers;
for(auto entry : entries)
{
duint handler;
if(MemRead(entry + sizeof(duint), &handler, sizeof(handler)))
handlers.push_back(handler);
}
printExhandlers("StructuredExceptionHandler (SEH)", handlers);
}
else
dputs(QT_TRANSLATE_NOOP("DBG", "Failed to get SEH (disabled?)"));
#endif //_WIN64
if(ExHandlerGetInfo(EX_HANDLER_VEH, entries))
printExhandlers("VectoredExceptionHandler (VEH)", entries);
else
dputs(QT_TRANSLATE_NOOP("DBG", "Failed to get VEH (loaded symbols for ntdll.dll?)"));
if(IsVistaOrLater())
{
if(ExHandlerGetInfo(EX_HANDLER_VCH, entries))
printExhandlers("VectoredContinueHandler (VCH)", entries);
else
dputs(QT_TRANSLATE_NOOP("DBG", "Failed to get VCH (loaded symbols for ntdll.dll?)"));
}
if(ExHandlerGetInfo(EX_HANDLER_UNHANDLED, entries))
printExhandlers("UnhandledExceptionFilter", entries);
else if(IsVistaOrLater())
dputs(QT_TRANSLATE_NOOP("DBG", "Failed to get UnhandledExceptionFilter (loaded symbols for kernelbase.dll?)"));
else
dputs(QT_TRANSLATE_NOOP("DBG", "Failed to get UnhandledExceptionFilter (loaded symbols for kernel32.dll?)"));
return true;
}
bool cbInstrExinfo(int argc, char* argv[])
{
const unsigned int MASK_FACILITY_VISUALCPP = 0x006D0000;
auto info = getLastExceptionInfo();
const auto & record = info.ExceptionRecord;
dputs_untranslated("EXCEPTION_DEBUG_INFO:");
dprintf_untranslated(" dwFirstChance: %X\n", info.dwFirstChance);
auto exceptionName = ExceptionCodeToName(record.ExceptionCode);
if(!exceptionName.size()) //if no exception was found, try the error codes (RPC_S_*)
exceptionName = ErrorCodeToName(record.ExceptionCode);
if(exceptionName.size())
dprintf_untranslated(" ExceptionCode: %08X (%s)\n", record.ExceptionCode, exceptionName.c_str());
else if((record.ExceptionCode & MASK_FACILITY_VISUALCPP) == MASK_FACILITY_VISUALCPP) //delayhlp.cpp
{
auto possibleError = record.ExceptionCode & 0xFFFF;
exceptionName = ErrorCodeToName(possibleError);
if(!exceptionName.empty())
exceptionName = StringUtils::sprintf(" (Visual C++ %s)", exceptionName.c_str());
dprintf_untranslated(" ExceptionCode: %08X%s\n", record.ExceptionCode, exceptionName.c_str());
}
else
dprintf_untranslated(" ExceptionCode: %08X\n", record.ExceptionCode);
dprintf_untranslated(" ExceptionFlags: %08X\n", record.ExceptionFlags);
auto symbolic = SymGetSymbolicName(duint(record.ExceptionAddress));
if(symbolic.length())
dprintf_untranslated(" ExceptionAddress: %p %s\n", record.ExceptionAddress, symbolic.c_str());
else
dprintf_untranslated(" ExceptionAddress: %p\n", record.ExceptionAddress);
dprintf_untranslated(" NumberParameters: %u\n", record.NumberParameters);
if(record.NumberParameters)
for(DWORD i = 0; i < record.NumberParameters; i++)
{
symbolic = SymGetSymbolicName(duint(record.ExceptionInformation[i]));
if(symbolic.length())
dprintf_untranslated("ExceptionInformation[%02u]: %p %s", i, record.ExceptionInformation[i], symbolic.c_str());
else
dprintf_untranslated("ExceptionInformation[%02u]: %p", i, record.ExceptionInformation[i]);
//https://msdn.microsoft.com/en-us/library/windows/desktop/aa363082(v=vs.85).aspx
if(record.ExceptionCode == EXCEPTION_ACCESS_VIOLATION ||
record.ExceptionCode == EXCEPTION_IN_PAGE_ERROR ||
record.ExceptionCode == EXCEPTION_GUARD_PAGE)
{
if(i == 0)
{
if(record.ExceptionInformation[i] == 0)
dprintf_untranslated(" Read");
else if(record.ExceptionInformation[i] == 1)
dprintf_untranslated(" Write");
else if(record.ExceptionInformation[i] == 8)
dprintf_untranslated(" DEP Violation");
}
else if(i == 1)
dprintf_untranslated(" Inaccessible Address");
else if(record.ExceptionCode == EXCEPTION_IN_PAGE_ERROR && i == 2)
dprintf_untranslated(" %s", ExceptionCodeToName((unsigned int)record.ExceptionInformation[i]).c_str());
}
dprintf_untranslated("\n");
}
return true;
}
bool cbInstrTraceexecute(int argc, char* argv[])
{
if(IsArgumentsLessThan(argc, 2))
return false;
duint addr;
if(!valfromstring(argv[1], &addr, false))
return false;
_dbg_dbgtraceexecute(addr);
return true;
}