【发布时间】：2011-09-17 17:43:42
【问题描述】：
我想执行一个用我的应用程序作为资源编译的 EXE 文件。我想直接在内存中执行。
我看过这个话题：
Is it possible to embed and run exe file in a Delphi executable app?
还有这段代码：
http://www.coderprofile.com/networks/source-codes/138/execute-resource-directly-in-memory
我使用了这个代码：
type
TSections = array [0..0] of TImageSectionHeader;
...
{$IMAGEBASE $10000000}
function GetAlignedSize(Size: dword; Alignment: dword): dword;
begin
if ((Size mod Alignment) = 0) then
Result := Size
else
Result := ((Size div Alignment) + 1) * Alignment;
end;
function ImageSize(Image: pointer): dword;
var
Alignment: dword;
ImageNtHeaders: PImageNtHeaders;
PSections: ^TSections;
SectionLoop: dword;
begin
ImageNtHeaders := pointer(dword(dword(Image)) + dword(PImageDosHeader(Image)._lfanew));
Alignment := ImageNtHeaders.OptionalHeader.SectionAlignment;
if ((ImageNtHeaders.OptionalHeader.SizeOfHeaders mod Alignment) = 0) then
begin
Result := ImageNtHeaders.OptionalHeader.SizeOfHeaders;
end
else
begin
Result := ((ImageNtHeaders.OptionalHeader.SizeOfHeaders div Alignment) + 1) * Alignment;
end;
PSections := pointer(pchar(@(ImageNtHeaders.OptionalHeader)) + ImageNtHeaders.FileHeader.SizeOfOptionalHeader);
for SectionLoop := 0 to ImageNtHeaders.FileHeader.NumberOfSections - 1 do
begin
if PSections[SectionLoop].Misc.VirtualSize <> 0 then
begin
if ((PSections[SectionLoop].Misc.VirtualSize mod Alignment) = 0) then
begin
Result := Result + PSections[SectionLoop].Misc.VirtualSize;
end
else
begin
Result := Result + (((PSections[SectionLoop].Misc.VirtualSize div Alignment) + 1) * Alignment);
end;
end;
end;
end;
procedure CreateProcessEx(FileMemory: pointer);
var
BaseAddress, Bytes, HeaderSize, InjectSize, SectionLoop, SectionSize: dword;
Context: TContext;
FileData: pointer;
ImageNtHeaders: PImageNtHeaders;
InjectMemory: pointer;
ProcInfo: TProcessInformation;
PSections: ^TSections;
StartInfo: TStartupInfo;
begin
ImageNtHeaders := pointer(dword(dword(FileMemory)) + dword(PImageDosHeader(FileMemory)._lfanew));
InjectSize := ImageSize(FileMemory);
GetMem(InjectMemory, InjectSize);
try
FileData := InjectMemory;
HeaderSize := ImageNtHeaders.OptionalHeader.SizeOfHeaders;
PSections := pointer(pchar(@(ImageNtHeaders.OptionalHeader)) + ImageNtHeaders.FileHeader.SizeOfOptionalHeader);
for SectionLoop := 0 to ImageNtHeaders.FileHeader.NumberOfSections - 1 do
begin
if PSections[SectionLoop].PointerToRawData < HeaderSize then HeaderSize := PSections[SectionLoop].PointerToRawData;
end;
CopyMemory(FileData, FileMemory, HeaderSize);
FileData := pointer(dword(FileData) + GetAlignedSize(ImageNtHeaders.OptionalHeader.SizeO fHeaders, ImageNtHeaders.OptionalHeader.SectionAlignment));
for SectionLoop := 0 to ImageNtHeaders.FileHeader.NumberOfSections - 1 do
begin
if PSections[SectionLoop].SizeOfRawData > 0 then
begin
SectionSize := PSections[SectionLoop].SizeOfRawData;
if SectionSize > PSections[SectionLoop].Misc.VirtualSize then SectionSize := PSections[SectionLoop].Misc.VirtualSize;
CopyMemory(FileData, pointer(dword(FileMemory) + PSections[SectionLoop].PointerToRawData), SectionSize);
FileData := pointer(dword(FileData) + GetAlignedSize(PSections[SectionLoop].Misc.VirtualSize, ImageNtHeaders.OptionalHeader.SectionAlignment));
end
else
begin
if PSections[SectionLoop].Misc.VirtualSize <> 0 then FileData := pointer(dword(FileData) + GetAlignedSize(PSections[SectionLoop].Misc.VirtualSize, ImageNtHeaders.OptionalHeader.SectionAlignment));
end;
end;
ZeroMemory(@StartInfo, SizeOf(StartupInfo));
ZeroMemory(@Context, SizeOf(TContext));
CreateProcess(nil, pchar(ParamStr(0)), nil, nil, False, CREATE_SUSPENDED, nil, nil, StartInfo, ProcInfo);
Context.ContextFlags := CONTEXT_FULL;
GetThreadContext(ProcInfo.hThread, Context);
ReadProcessMemory(ProcInfo.hProcess, pointer(Context.Ebx + 8), @BaseAddress, 4, Bytes);
VirtualAllocEx(ProcInfo.hProcess, pointer(ImageNtHeaders.OptionalHeader.ImageBase), InjectSize, MEM_RESERVE or MEM_COMMIT, PAGE_EXECUTE_READWRITE);
WriteProcessMemory(ProcInfo.hProcess, pointer(ImageNtHeaders.OptionalHeader.ImageBase), InjectMemory, InjectSize, Bytes);
WriteProcessMemory(ProcInfo.hProcess, pointer(Context.Ebx + 8), @ImageNtHeaders.OptionalHeader.ImageBase, 4, Bytes);
Context.Eax := ImageNtHeaders.OptionalHeader.ImageBase + ImageNtHeaders.OptionalHeader.AddressOfEntryPoint;
SetThreadContext(ProcInfo.hThread, Context);
ResumeThread(ProcInfo.hThread);
finally
FreeMemory(InjectMemory);
end;
end;
procedure Execute;
var
RS : TResourceStream;
begin
RS := TResourceStream.Create(HInstance, 'MrResource', RT_RCDATA);
try
CreateProcessEx(RS.Memory);
finally
RS.Free;
end;
end;
但我在这一行（在 CreateProcessEX 中）出现“内存不足”错误：
GetMem(InjectMemory, InjectSize);
有人可以帮我解决这个错误吗？或者给我一些工作代码/解决方案？
感谢之前...
【问题讨论】：
-
InjectSize 的值是多少？也许内存不足错误就是它看起来的样子
-
为什么这个问题被否决了？
-
这是一个有趣的问题，但是，哇，工作量真大。为什么不with 与操作系统一起工作，而不是反对 它，然后将文件放在临时目录中。
-
您是否尝试从您的 coderprofile-link 编译并运行完整示例？如果可行，那么您应该从那里开始并将其更改为使用您的可执行文件。但就像 Ian 建议的那样，将其放入 temp 并从那里执行要简单得多，用户不会注意到其中的差异。除非您这样做是为了绕过病毒扫描程序。
-
@David Heffernan : InjectSize := ImageSize(FileMemory); , 如果出错，我认为“ImageSize”函数可能有问题