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C++ AsmJitHelper::ret方法代码示例

本文整理汇总了C++中AsmJitHelper::ret方法的典型用法代码示例。如果您正苦于以下问题：C++ AsmJitHelper::ret方法的具体用法？C++ AsmJitHelper::ret怎么用？C++ AsmJitHelper::ret使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类AsmJitHelper的用法示例。


在下文中一共展示了AsmJitHelper::ret方法的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: CreateAPCEvent

/// <summary>
/// Create event to synchronize APC procedures
/// </summary>
/// <param name="threadID">The thread identifier.</param>
/// <returns>true on success</returns>
bool RemoteExec::CreateAPCEvent( DWORD threadID )
{         
    if(_hWaitEvent == NULL)
    {
        AsmJitHelper a;

        wchar_t pEventName[128] = { 0 };
        uint64_t dwResult = NULL;
        size_t len = sizeof(pEventName);
        OBJECT_ATTRIBUTES obAttr = { 0 };
        UNICODE_STRING ustr = { 0 };

        // Detect ntdll type
        eModType mt = mt_default;
        if (_memory.core().native()->GetWow64Barrier().type == wow_64_32)
            mt = mt_mod64;

        // Event name
        swprintf_s( pEventName, ARRAYSIZE( pEventName ), L"\\BaseNamedObjects\\_MMapEvent_0x%x_0x%x", threadID, GetTickCount() );

        // Prepare Arguments
        ustr.Length = static_cast<USHORT>(wcslen( pEventName ) * sizeof(wchar_t));
        ustr.MaximumLength = static_cast<USHORT>(sizeof(pEventName));
        ustr.Buffer = reinterpret_cast<PWSTR>(_userData.ptr<size_t>() + ARGS_OFFSET + sizeof(obAttr) + sizeof(ustr));

        obAttr.ObjectName = reinterpret_cast<PUNICODE_STRING>(_userData.ptr<size_t>() + ARGS_OFFSET + sizeof(obAttr));
        obAttr.Length = sizeof(obAttr);

        auto pCreateEvent = _mods.GetExport( _mods.GetModule( L"ntdll.dll", Sections, mt ), "NtCreateEvent" ).procAddress;
        if (pCreateEvent == 0)
            return false;

        a.GenCall( static_cast<size_t>(pCreateEvent), { 
            _userData.ptr<size_t>( ) + EVENT_OFFSET, EVENT_ALL_ACCESS,
            _userData.ptr<size_t>() + ARGS_OFFSET, 0, FALSE } );

        // Save status
        a->mov( asmjit::host::zdx, _userData.ptr<size_t>() + ERR_OFFSET );
        a->mov( asmjit::host::dword_ptr( asmjit::host::zdx ), asmjit::host::eax );

        a->ret();

        NTSTATUS status = _userData.Write( ARGS_OFFSET, obAttr );
        status |= _userData.Write( ARGS_OFFSET + sizeof(obAttr), ustr );
        status |= _userData.Write( ARGS_OFFSET + sizeof(obAttr) + sizeof(ustr), len, pEventName );

        if (status != STATUS_SUCCESS)
            return false;

        ExecInNewThread( a->make(), a->getCodeSize(), dwResult );

        status = _userData.Read<NTSTATUS>( ERR_OFFSET, -1 );
        if (status != STATUS_SUCCESS)
            return false;

        ustr.Buffer = pEventName;
        obAttr.ObjectName = &ustr;

        // Open created event
        status = GET_IMPORT( NtOpenEvent )( &_hWaitEvent, SYNCHRONIZE | EVENT_MODIFY_STATE, &obAttr );

        if (status != STATUS_SUCCESS)
            return false;
    }

    return true;
}
开发者ID:topblast，项目名称:Blackbone，代码行数:72，代码来源:RemoteExec.cpp

示例2: ExecInAnyThread

/// <summary>
/// Execute code in context of any existing thread
/// </summary>
/// <param name="pCode">Cde to execute</param>
/// <param name="size">Code size.</param>
/// <param name="callResult">Execution result</param>
/// <param name="thd">Target thread</param>
/// <returns>Status</returns>
NTSTATUS RemoteExec::ExecInAnyThread( PVOID pCode, size_t size, uint64_t& callResult, Thread& thd )
{
    NTSTATUS dwResult = STATUS_SUCCESS;
    CONTEXT_T ctx;

    // Prepare for remote exec
    CreateRPCEnvironment( true );

    // Write code
    dwResult = CopyCode( pCode, size );
    if (dwResult != STATUS_SUCCESS)
        return dwResult;

    if (_hWaitEvent)
        ResetEvent( _hWaitEvent );

    if (!thd.Suspend())
        return LastNtStatus();

    if (thd.GetContext( ctx, CONTEXT_ALL, true ))
    {
        AsmJitHelper a;

#ifdef USE64
        const int count = 15;
        asmjit::host::GpReg regs[] = { asmjit::host::rax, asmjit::host::rbx, asmjit::host::rcx, asmjit::host::rdx, asmjit::host::rsi,
                                       asmjit::host::rdi, asmjit::host::r8, asmjit::host::r9, asmjit::host::r10, asmjit::host::r11,
                                       asmjit::host::r12, asmjit::host::r13, asmjit::host::r14, asmjit::host::r15, asmjit::host::rbp };
        //
        // Preserve thread context
        // I don't care about FPU, XMM and anything else
        //
        a->sub( asmjit::host::rsp, count * WordSize );  // Stack must be aligned on 16 bytes 
        a->pushf();                                     //

        // Save registers
        for (int i = 0; i < count; i++)
            a->mov( asmjit::host::Mem( asmjit::host::rsp, i * WordSize ), regs[i] );

        a.GenCall( _userCode.ptr<size_t>(), { _userData.ptr<size_t>() } );
        AddReturnWithEvent( a, mt_default, rt_int32, INTRET_OFFSET );

        // Restore registers
        for (int i = 0; i < count; i++)
            a->mov( regs[i], asmjit::host::Mem( asmjit::host::rsp, i * WordSize ) );

        a->popf();
        a->add( asmjit::host::rsp, count * WordSize );

        a->jmp( asmjit::Imm( ctx.Rip ) );
    #else
        a->pusha();
        a->pushf();

        a.GenCall( _userCode.ptr<size_t>(), { _userData.ptr<size_t>() } );
        AddReturnWithEvent( a, mt_default, rt_int32, INTRET_OFFSET );

        a->popf();
        a->popa();

        a->push( (size_t)ctx.NIP );
        a->ret();
    #endif

        if (_userCode.Write( size, a->getCodeSize(), a->make() ) == STATUS_SUCCESS)
        {
            ctx.NIP = _userCode.ptr<size_t>() + size;

            if (!thd.SetContext( ctx, true ))
                dwResult = LastNtStatus();
        }
        else
            dwResult = LastNtStatus();
    }
    else
        dwResult = LastNtStatus();

    thd.Resume();

    if (dwResult == STATUS_SUCCESS)
    {
        WaitForSingleObject( _hWaitEvent, INFINITE );
        callResult = _userData.Read<size_t>( INTRET_OFFSET, 0 );
    }

    return dwResult;
}
开发者ID:topblast，项目名称:Blackbone，代码行数:95，代码来源:RemoteExec.cpp

示例3: CreateVEH

	NTSTATUS MExcept::CreateVEH(size_t pTargetBase, size_t imageSize, eModType mt, bool partial) {
		AsmJitHelper a;
		uint64_t result = 0;
		auto& mods = _proc.Modules();
		#ifdef USE64 
		// Add module to module table
		if(!_pModTable.Valid()) {
			_pModTable = _proc.Memory().Allocate(0x1000);
			_pModTable.Release();
			if(!_pModTable.Valid())
				return LastNtStatus();
		}
		ModuleTable table;
		_pModTable.Read(0, table);
		// Add new entry to the table
		table.entry[table.count].base = pTargetBase;
		table.entry[table.count].size = imageSize;
		table.count++;
		_pModTable.Write(0, table);
		// No handler required
		if(partial)
			return STATUS_SUCCESS;
		// VEH codecave
		_pVEHCode = _proc.Memory().Allocate(0x2000);
		_pVEHCode.Release();
		if(!_pVEHCode.Valid())
			return LastNtStatus();
		BLACBONE_TRACE("ManualMap: Vectored hander: 0x%p\n", _pVEHCode.Ptr());
		asmjit::Label lExit = a->newLabel();
		asmjit::Label lLoop1 = a->newLabel();
		asmjit::Label skip1 = a->newLabel();
		asmjit::Label found1 = a->newLabel();
		//
		// Assembly code for VectoredHandler64
		// 0x10 - EXCEPTION_RECORD.ExceptionAddress
		// 0x20 - EXCEPTION_RECORD.ExceptionInformation[0]
		// 0x30 - EXCEPTION_RECORD.ExceptionInformation[2]
		// 0x38 - EXCEPTION_RECORD.ExceptionInformation[3]
		//
		a->mov(asmjit::host::rax, asmjit::host::qword_ptr(asmjit::host::rcx));
		a->cmp(asmjit::host::dword_ptr(asmjit::host::rax), EH_EXCEPTION_NUMBER);            // Exception code
		a->jne(lExit);
		a->cmp(asmjit::host::qword_ptr(asmjit::host::rax, 0x20), EH_PURE_MAGIC_NUMBER1);    // Sub code
		a->jne(lExit);
		a->cmp(asmjit::host::qword_ptr(asmjit::host::rax, 0x38), 0);                        // Image base
		a->jne(lExit);
		a->mov(asmjit::host::r9, _pModTable.Ptr());
		a->mov(asmjit::host::rdx, asmjit::host::qword_ptr(asmjit::host::r9));               // Record count
		a->add(asmjit::host::r9, sizeof(table.count));
		a->xor_(asmjit::host::r10, asmjit::host::r10);
		a->bind(lLoop1);
		a->mov(asmjit::host::r8, asmjit::host::qword_ptr(asmjit::host::rax, 0x30));
		a->mov(asmjit::host::r11, asmjit::host::qword_ptr(asmjit::host::r9));
		a->cmp(asmjit::host::r8, asmjit::host::r11);
		a->jl(skip1);
		a->add(asmjit::host::r11, asmjit::host::qword_ptr(asmjit::host::r9, sizeof(table.entry[0].base)));    // Size
		a->cmp(asmjit::host::r8, asmjit::host::r11);
		a->jg(skip1);
		a->jmp(found1);
		a->bind(skip1);
		a->add(asmjit::host::r9, sizeof(ExceptionModule));
		a->add(asmjit::host::r10, 1);
		a->cmp(asmjit::host::r10, asmjit::host::rdx);
		a->jne(lLoop1);
		a->jmp(lExit);
		a->bind(found1);
		a->mov(asmjit::host::qword_ptr(asmjit::host::rax, 0x20), EH_MAGIC_NUMBER1);
		a->mov(asmjit::host::rcx, asmjit::host::qword_ptr(asmjit::host::rcx));
		a->mov(asmjit::host::rdx, asmjit::host::qword_ptr(asmjit::host::r9));
		a->mov(asmjit::host::qword_ptr(asmjit::host::rax, 0x38), asmjit::host::rdx);
		a->bind(lExit);
		a->xor_(asmjit::host::rax, asmjit::host::rax);
		a->ret();
		a->db(0xCC);
		a->db(0xCC);
		a->db(0xCC);
		if(_pVEHCode.Write(0, a->getCodeSize(), a->make()) != STATUS_SUCCESS) {
			_pVEHCode.Free();
			return LastNtStatus();
		}
		#else
		UNREFERENCED_PARAMETER(pTargetBase);
		UNREFERENCED_PARAMETER(imageSize);
		// No handler required
		if(partial)
			return STATUS_SUCCESS;
		// VEH codecave
		_pVEHCode = _proc.Memory().Allocate(0x2000);
		_pVEHCode.Release();
		if(!_pVEHCode.Valid())
			return LastNtStatus();
		// Resolve compiler incremental table address, if any
		void *pFunc = ResolveJmp(&VectoredHandler);
		size_t fnSize = static_cast<size_t>(SizeOfProc(pFunc));
		size_t dataOfs = 0, code_ofs = 0, code_ofs2 = 0;;
		// Find and replace magic values
		for(uint8_t *pData = reinterpret_cast<uint8_t*>(pFunc);
		pData < reinterpret_cast<uint8_t*>(pFunc) + fnSize - 4;
			pData++) {
			// LdrpInvertedFunctionTable
//.........这里部分代码省略.........
开发者ID:MarkHC，项目名称:Blackbone，代码行数:101，代码来源:MExcept.cpp

示例4: CreateActx

	bool MMap::CreateActx(const std::wstring& path, int id /*= 2 */, bool asImage /*= true*/) {
		AsmJitHelper a;
		uint64_t result = 0;
		ACTCTXW act = {0};
		_pAContext = _process.Memory().Allocate(512, PAGE_READWRITE);
		act.cbSize = sizeof(act);
		act.lpSource = reinterpret_cast<LPCWSTR>(_pAContext.Ptr<size_t>() + sizeof(HANDLE) + sizeof(act));
		// Ignore some fields for pure manifest file
		if(asImage) {
			act.dwFlags = ACTCTX_FLAG_RESOURCE_NAME_VALID;
			act.lpResourceName = MAKEINTRESOURCEW(id);
		}
		bool switchMode = (_process.Core().GetNative()->GetWow64Barrier().type == wow_64_32);
		auto pCreateActx = _process.Modules().GetExport(_process.Modules().GetModule(L"kernel32.dll"), "CreateActCtxW");
		if(pCreateActx.procAddress == 0) {
			BLACBONE_TRACE(L"ManualMap: Failed to create activation context for image '%ls'. 'CreateActCtxW' is absent", path.c_str());
			return false;
		}
		// CreateActCtx(&act)
		// Emulate Wow64
		if(switchMode) {
			_ACTCTXW_T<DWORD> act32 = {0};
			act32.cbSize = sizeof(act32);
			act32.dwFlags = ACTCTX_FLAG_RESOURCE_NAME_VALID;
			act32.lpSource = _pAContext.Ptr<uint32_t>() + sizeof(HANDLE) + sizeof(act32);
			act32.lpResourceName = id;
			a->push(_pAContext.Ptr<uint32_t>() + static_cast<uint32_t>(sizeof(HANDLE)));
			a->mov(asmjit::host::eax, static_cast<uint32_t>(pCreateActx.procAddress));
			a->call(a->zax);
			a->mov(asmjit::host::edx, _pAContext.Ptr<uint32_t>());
			//a->mov( asmjit::host::dword_ptr( asmjit::host::edx ), asmjit::host::eax );
			a->dw('\x01\x02');
			auto pTermThd = _process.Modules().GetExport(_process.Modules().GetModule(L"ntdll.dll"), "NtTerminateThread");
			a->push(a->zax);
			a->push(uint32_t(0));
			a->mov(asmjit::host::eax, static_cast<uint32_t>(pTermThd.procAddress));
			a->call(a->zax);
			a->ret(4);
			// Write path to file
			_pAContext.Write(sizeof(HANDLE), act32);
			_pAContext.Write(sizeof(HANDLE) + sizeof(act32), (path.length() + 1) * sizeof(wchar_t), path.c_str());
			auto pCode = _process.Memory().Allocate(0x1000);
			pCode.Write(0, a->getCodeSize(), a->make());
			result = _process.Remote().ExecDirect(pCode.Ptr<ptr_t>(), _pAContext.Ptr<size_t>() + sizeof(HANDLE));
		}
		// Native way
		else {
			a.GenPrologue();
			a.GenCall(static_cast<size_t>(pCreateActx.procAddress), {_pAContext.Ptr<size_t>() + sizeof(HANDLE)});
			a->mov(a->zdx, _pAContext.Ptr<size_t>());
			a->mov(a->intptr_ptr(a->zdx), a->zax);
			_process.Remote().AddReturnWithEvent(a);
			a.GenEpilogue();
			// Write path to file
			_pAContext.Write(sizeof(HANDLE), act);
			_pAContext.Write(sizeof(HANDLE) + sizeof(act), (path.length() + 1) * sizeof(wchar_t), path.c_str());
			_process.Remote().ExecInWorkerThread(a->make(), a->getCodeSize(), result);
		}
		if(reinterpret_cast<HANDLE>(result) == INVALID_HANDLE_VALUE) {
			_pAContext.Free();
			// SetLastError( err::mapping::CantCreateActx );
			BLACBONE_TRACE(L"ManualMap: Failed to create activation context for image '%ls'. Status: 0x%x",
				path.c_str(), _process.Remote().GetLastStatus());
			return false;
		}
		return true;
	}
开发者ID:MarkHC，项目名称:Blackbone，代码行数:67，代码来源:MMap.cpp

示例5: CreateVEH

/// <summary>
/// Inject VEH wrapper into process
/// Used to enable execution of SEH handlers out of image
/// </summary>
/// <param name="pTargetBase">Target image base address</param>
/// <param name="imageSize">Size of the image</param>
/// <returns>Error code</returns>
NTSTATUS MExcept::CreateVEH( size_t pTargetBase, size_t imageSize )
{    
    AsmJitHelper ea;
    uint64_t result = 0;
    
    // VEH codecave
    _pVEHCode = _proc.memory().Allocate( 0x2000 );
    _pVEHCode.Release();
    if (!_pVEHCode.valid())
        return LastNtStatus();

#ifdef USE64 
    asmjit::Label lExit = ea->newLabel();

    //
    // Assembly code for VectoredHandler64
    // 0x10 - EXCEPTION_RECORD.ExceptionAddress
    // 0x20 - EXCEPTION_RECORD.ExceptionInformation[0]
    // 0x30 - EXCEPTION_RECORD.ExceptionInformation[2]
    // 0x38 - EXCEPTION_RECORD.ExceptionInformation[3]
    //
    ea->mov( asmjit::host::rax, qword_ptr( asmjit::host::rcx ) );
    ea->cmp( asmjit::host::dword_ptr( asmjit::host::rax ), EH_EXCEPTION_NUMBER );
    ea->jne( lExit );
    ea->mov( asmjit::host::rdx, pTargetBase );
    ea->mov( asmjit::host::r8, asmjit::host::qword_ptr( asmjit::host::rax, 0x30 ) );
    ea->cmp( asmjit::host::r8, asmjit::host::rdx );;
    ea->jl( lExit );
    ea->add( asmjit::host::rdx, imageSize );
    ea->cmp( asmjit::host::r8, asmjit::host::rdx );;
    ea->jg( lExit );
    ea->cmp( asmjit::host::qword_ptr( asmjit::host::rax, 0x20 ), EH_PURE_MAGIC_NUMBER1 );;
    ea->jne( lExit );
    ea->cmp( asmjit::host::qword_ptr( asmjit::host::rax, 0x38 ), 0 );
    ea->jne( lExit );
    ea->mov( asmjit::host::qword_ptr( asmjit::host::rax, 0x20 ), EH_MAGIC_NUMBER1 );
    ea->mov( asmjit::host::rcx, qword_ptr( asmjit::host::rcx ) );
    ea->mov( asmjit::host::rdx, pTargetBase );
    ea->mov( asmjit::host::qword_ptr( asmjit::host::rax, 0x38 ), asmjit::host::rdx );
    ea->bind( lExit );
    ea->xor_( asmjit::host::rax, asmjit::host::rax );
    ea->ret();
    ea->emit( 0xCC );
    ea->emit( 0xCC );
    ea->emit( 0xCC );

    if (_pVEHCode.Write( 0, ea->getCodeSize(), ea->make() ) != STATUS_SUCCESS)
    {
        _pVEHCode.Free();
        return LastNtStatus();
    }
#else
    UNREFERENCED_PARAMETER( pTargetBase );
    UNREFERENCED_PARAMETER( imageSize );

    // Resolve compiler incremental table address if any
    void *pFunc = ResolveJmp( &VectoredHandler );
    size_t fnSize = static_cast<size_t>(SizeOfProc( pFunc ));
    size_t dataOfs = 0, code_ofs = 0;

    // Find and replace magic values
    for (uint8_t *pData = reinterpret_cast<uint8_t*>(pFunc);
          pData < reinterpret_cast<uint8_t*>(pFunc) + fnSize - 4; 
          pData++)
    {
        // LdrpInvertedFunctionTable
        if(*(size_t*)pData == 0xDEADDA7A)
        {
            dataOfs = pData - reinterpret_cast<uint8_t*>(pFunc);
            continue;
        }

        // DecodeSystemPointer address
        if(*(size_t*)pData == 0xDEADC0DE)
        {
            code_ofs = pData - reinterpret_cast<uint8_t*>(pFunc);
            break;
        }  
    }

    // Write handler data into target process
    if (_pVEHCode.Write( 0, fnSize, pFunc ) != STATUS_SUCCESS ||
         _pVEHCode.Write( dataOfs, _proc.nativeLdr().LdrpInvertedFunctionTable() ) != STATUS_SUCCESS ||
         _pVEHCode.Write( code_ofs, &DecodeSystemPointer ) != STATUS_SUCCESS)
    {
        _pVEHCode.Free();
        return LastNtStatus();
    }

#endif

    ea.GenPrologue();

//.........这里部分代码省略.........
开发者ID:qiaohang，项目名称:Blackbone，代码行数:101，代码来源:MExcept.cpp


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