从内存中加载并运行exe（两种方法）-优快云博客

    windows似乎只提供了一种启动进程的方法：即必须从一个可执行文件中加载并启动。
    而下面这段代码就是提供一种可以直接从内存中启动一个exe的变通办法。
    用途嘛,     也许可以用来保护你的exe，你可以对要保护的     exe     进行任意切分、加密、存储，
    只要运行时能将exe的内容正确拼接到一块内存中，就可以直接从内存中启动，而不必不安全地去
    生成一个临时文件再从临时文件启动进程。另外这段代码也提供了一种自己写exe外壳的简单途径，
    如果能配合其它各种外壳技术就更好地保护你的exe文件。
    原理很简单：就是“借尸还魂”，启动一个僵尸进程（NT下可以是自身程序启动的另一个进程），
    然后在它运行前将其整个替换成内存中的exe内容，待正式运行后执行的就是你的目标代码了。
    不过代码中还有一些不尽人意的地方，比如在98下运行会留一个僵尸程序的壳在硬盘上（
    其实那个僵尸程序本身就是一个完整的可执行程序，直接运行的话只显示一条错误信息然后就退出了）。
    另外由于客观条件限制，代码没有经过充分测试，只在XP下进行了一些初步测试：普通exe都能正常运行，
    upx压缩过的exe绝大多数情况下都能运行，只有在不能卸载僵尸外壳时才有问题（upx压缩过的exe没有重定向表，
    无法加载到其它地址运行）。
    如果有bug望告之，如果有更好的方法特别是能解决98下的遗留尾巴的话希望不吝赐教。

{     *******************************************************     }
    {     *                                     从内存中加载并运行exe                                 *     }
    {     *******************************************************     }
    {     *     参数：                                                                                                   }
    {     *     Buffer:     内存中的exe地址                                                                 }
    {     *     Len:     内存中exe占用长度                                                                   }
    {     *     CmdParam:     命令行参数(不包含exe文件名的剩余命令行参数）}
    {     *     ProcessId:     返回的进程Id                                                                 }
    {     *     返回值：     如果成功则返回进程的Handle(ProcessHandle),         }
    {                           如果失败则返回INVALID_HANDLE_VALUE                         }
    {     *******************************************************     }
unit PEUnit;
interface
uses windows;
function MemExecute(const ABuffer; Len: Integer; CmdParam: string; var ProcessId: Cardinal): Cardinal;
implementation
//{$R ExeShell.res}     // 外壳程序模板(98下使用)
type
    TImageSectionHeaders = array [0..0] of TImageSectionHeader;
    PImageSectionHeaders = ^TImageSectionHeaders;
{ 计算对齐后的大小 }
function GetAlignedSize(Origin, Alignment: Cardinal): Cardinal;
begin
    result := (Origin + Alignment - 1) div Alignment * Alignment;
end;
{ 计算加载pe并对齐需要占用多少内存，未直接使用OptionalHeader.SizeOfImage作为结果是因为据说有的编译器生成的exe这个值会填0 }
function CalcTotalImageSize(MzH: PImageDosHeader; FileLen: Cardinal; peH: PImageNtHeaders;
      peSecH: PImageSectionHeaders): Cardinal;
var
    i: Integer;
begin
    {计算pe头的大小}
    result := GetAlignedSize(PeH.OptionalHeader.SizeOfHeaders, PeH.OptionalHeader.SectionAlignment);
    {计算所有节的大小}
    for i := 0 to peH.FileHeader.NumberOfSections - 1 do
      if peSecH[i].PointerToRawData + peSecH[i].SizeOfRawData > FileLen then    // 超出文件范围
      begin
        result := 0;
        exit;
      end
      else if peSecH[i].VirtualAddress <> 0 then    //计算对齐后某节的大小
        if peSecH[i].Misc.VirtualSize <> 0 then
          result := GetAlignedSize(peSecH[i].VirtualAddress + peSecH[i].Misc.VirtualSize, PeH.OptionalHeader.SectionAlignment)
        else
          result := GetAlignedSize(peSecH[i].VirtualAddress + peSecH[i].SizeOfRawData, PeH.OptionalHeader.SectionAlignment)
      else if peSecH[i].Misc.VirtualSize < peSecH[i].SizeOfRawData then
        result := result + GetAlignedSize(peSecH[i].SizeOfRawData, peH.OptionalHeader.SectionAlignment)
      else
        result := result + GetAlignedSize(peSecH[i].Misc.VirtualSize, PeH.OptionalHeader.SectionAlignment);
end;
{ 加载pe到内存并对齐所有节 }
function AlignPEToMem(const Buf; Len: Integer; var PeH: PImageNtHeaders;
      var PeSecH: PImageSectionHeaders; var Mem: Pointer; var ImageSize: Cardinal): Boolean;
var
    SrcMz: PImageDosHeader;              // DOS头
    SrcPeH: PImageNtHeaders;             // PE头
    SrcPeSecH: PImageSectionHeaders;     // 节表
    i: Integer;
    l: Cardinal;
    Pt: Pointer;
begin
    result := false;
    SrcMz := @Buf;
    if Len < sizeof(TImageDosHeader) then exit;
    if SrcMz.e_magic <> IMAGE_DOS_SIGNATURE then exit;
    if Len < SrcMz._lfanew+Sizeof(TImageNtHeaders) then exit;
    SrcPeH := pointer(Integer(SrcMz)+SrcMz._lfanew);
    if (SrcPeH.Signature <> IMAGE_NT_SIGNATURE) then exit;
    if (SrcPeH.FileHeader.Characteristics and IMAGE_FILE_DLL <> 0) or
        (SrcPeH.FileHeader.Characteristics and IMAGE_FILE_EXECUTABLE_IMAGE = 0)
        or (SrcPeH.FileHeader.SizeOfOptionalHeader <> SizeOf(TImageOptionalHeader)) then exit;
    SrcPeSecH := Pointer(Integer(SrcPeH)+SizeOf(TImageNtHeaders));
    ImageSize := CalcTotalImageSize(SrcMz, Len, SrcPeH, SrcPeSecH);
    if ImageSize = 0 then
      exit;
    Mem := VirtualAlloc(nil, ImageSize, MEM_COMMIT, PAGE_EXECUTE_READWRITE);    // 分配内存
    if Mem <> nil then
    begin
      // 计算需要复制的PE头字节数
      l := SrcPeH.OptionalHeader.SizeOfHeaders;
      for i := 0 to SrcPeH.FileHeader.NumberOfSections - 1 do
        if (SrcPeSecH[i].PointerToRawData <> 0) and (SrcPeSecH[i].PointerToRawData < l) then
          l := SrcPeSecH[i].PointerToRawData;
      Move(SrcMz^, Mem^, l);
      PeH := Pointer(Integer(Mem) + PImageDosHeader(Mem)._lfanew);
      PeSecH := Pointer(Integer(PeH) + sizeof(TImageNtHeaders));
      Pt := Pointer(Cardinal(Mem) + GetAlignedSize(PeH.OptionalHeader.SizeOfHeaders, PeH.OptionalHeader.SectionAlignment));
      for i := 0 to PeH.FileHeader.NumberOfSections - 1 do
      begin
        // 定位该节在内存中的位置
        if PeSecH[i].VirtualAddress <> 0 then
          Pt := Pointer(Cardinal(Mem) + PeSecH[i].VirtualAddress);
        if PeSecH[i].SizeOfRawData <> 0 then
        begin
          // 复制数据到内存
          Move(Pointer(Cardinal(SrcMz) + PeSecH[i].PointerToRawData)^, pt^, PeSecH[i].SizeOfRawData);
          if peSecH[i].Misc.VirtualSize < peSecH[i].SizeOfRawData then
            pt := pointer(Cardinal(pt) + GetAlignedSize(PeSecH[i].SizeOfRawData, PeH.OptionalHeader.SectionAlignment))
          else
            pt := pointer(Cardinal(pt) + GetAlignedSize(peSecH[i].Misc.VirtualSize, peH.OptionalHeader.SectionAlignment));
          // pt 定位到下一节开始位置
        end
        else
          pt := pointer(Cardinal(pt) + GetAlignedSize(PeSecH[i].Misc.VirtualSize, PeH.OptionalHeader.SectionAlignment));
      end;
      result := True;
    end;
end;
type
    TVirtualAllocEx = function (hProcess: THandle; lpAddress: Pointer;
                                    dwSize, flAllocationType: DWORD; flProtect: DWORD): Pointer; stdcall;
var
    MyVirtualAllocEx: TVirtualAllocEx = nil;
function IsNT: Boolean;
begin
    result := Assigned(MyVirtualAllocEx);
end;
{ 生成外壳程序命令行 }
function PrepareShellExe(CmdParam: string; BaseAddr, ImageSize: Cardinal): string;
var
    r, h, sz: Cardinal;
    p: Pointer;
    fid, l: Integer;
    buf: Pointer;
    peH: PImageNtHeaders;
    peSecH: PImageSectionHeaders;
begin
    if IsNT then
    { NT 系统下直接使用自身程序作为外壳进程 }
      result := ParamStr(0) + CmdParam
    else begin
    // 由于98系统下无法重新分配外壳进程占用内存,所以必须保证运行的外壳程序能容纳目标进程并且加载地址一致
    // 此处使用的方法是从资源中释放出一个事先建立好的外壳程序,然后通过修改其PE头使其运行时能加载到指定地址并至少能容纳目标进程
      r := FindResource(HInstance, 'SHELL_EXE', RT_RCDATA);
      h := LoadResource(HInstance, r);
      p := LockResource(h);
      l := SizeOfResource(HInstance, r);
      GetMem(Buf, l);
      Move(p^, Buf^, l);     // 读到内存
      FreeResource(h);
      peH := Pointer(Integer(Buf) + PImageDosHeader(Buf)._lfanew);
      peSecH := Pointer(Integer(peH) + sizeof(TImageNtHeaders));
      peH.OptionalHeader.ImageBase := BaseAddr;      // 修改PE头重的加载基址
      if peH.OptionalHeader.SizeOfImage < ImageSize then    // 目标比外壳大,修改外壳程序运行时占用的内存
      begin
        sz := Imagesize - peH.OptionalHeader.SizeOfImage;
        Inc(peH.OptionalHeader.SizeOfImage, sz);      // 调整总占用内存数
        Inc(peSecH[peH.FileHeader.NumberOfSections-1].Misc.VirtualSize, sz);     // 调整最后一节占用内存数
      end;
      // 生成外壳程序文件名, 为本程序改后缀名得到的
      // 由于不想 uses SysUtils (一旦 use 了程序将增大80K左右), 而且偷懒，所以只支持最多运行11个进程，后缀名为.dat, .da0~.da9
      result := ParamStr(0);
      result := copy(result, 1, length(result) - 4) + '.dat';
      r := 0;
      while r < 10 do
      begin
        fid := CreateFile(pchar(result), GENERIC_READ or GENERIC_WRITE, 0, nil, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
        if fid < 0 then
        begin
          result := copy(result, 1, length(result)-3)+'da'+Char(r+Byte('0'));
          inc(r);
        end
        else begin
          //SetFilePointer(fid, Imagesize, nil, 0);
          //SetEndOfFile(fid);
          //SetFilePointer(fid, 0, nil, 0);
          WriteFile(fid, Buf^, l, h, nil);    // 写入文件
          CloseHandle(fid);
          break;
        end;
      end;
      result := result + CmdParam;    // 生成命令行
      FreeMem(Buf);
    end;
end;
{ 是否包含可重定向列表 }
function HasRelocationTable(peH: PImageNtHeaders): Boolean;
begin
    result := (peH.OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC].VirtualAddress <> 0)
        and (peH.OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC].Size <> 0);
end;
type
    PImageBaseRelocation= ^TImageBaseRelocation;
    TImageBaseRelocation = packed record
      VirtualAddress: cardinal;
      SizeOfBlock: cardinal;
    end;
{ 重定向PE用到的地址 }
procedure DoRelocation(peH: PImageNtHeaders; OldBase, NewBase: Pointer);
var
    Delta: Cardinal;
    p: PImageBaseRelocation;
    pw: PWord;
    i: Integer;
begin
    Delta := Cardinal(NewBase) - peH.OptionalHeader.ImageBase;
    p := pointer(cardinal(OldBase) + peH.OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC].VirtualAddress);
    while (p.VirtualAddress + p.SizeOfBlock <> 0) do
    begin
      pw := pointer(Integer(p) + Sizeof(p^));
      for i := 1 to (p.SizeOfBlock - Sizeof(p^)) div 2 do
      begin
        if pw^ and $F000 = $3000 then
          Inc(PCardinal(Cardinal(OldBase) + p.VirtualAddress + (pw^ and $0FFF))^, Delta);
        inc(pw);
      end;
      p := Pointer(pw);
    end;
end;
type
    TZwUnmapViewOfSection = function (Handle, BaseAdr: Cardinal): Cardinal; stdcall;
{ 卸载原外壳占用内存 }
function UnloadShell(ProcHnd, BaseAddr: Cardinal): Boolean;
var
    M: HModule;
    ZwUnmapViewOfSection: TZwUnmapViewOfSection;
begin
    result := False;
    m := LoadLibrary('ntdll.dll');
    if m <> 0 then
    begin
      ZwUnmapViewOfSection := GetProcAddress(m, 'ZwUnmapViewOfSection');
      if assigned(ZwUnmapViewOfSection) then
        result := (ZwUnmapViewOfSection(ProcHnd, BaseAddr) = 0);
      FreeLibrary(m);
    end;
end;
{ 创建外壳进程并获取其基址、大小和当前运行状态 }
function CreateChild(Cmd: string; var Ctx: TContext; var ProcHnd, ThrdHnd, ProcId, BaseAddr, ImageSize: Cardinal): Boolean;
var
    si: TStartUpInfo;
    pi: TProcessInformation;
    Old: Cardinal;
    MemInfo: TMemoryBasicInformation;
    p: Pointer;
begin
    FillChar(si, Sizeof(si), 0);
    FillChar(pi, SizeOf(pi), 0);
    si.cb := sizeof(si);
    result := CreateProcess(nil, PChar(Cmd), nil, nil, False, CREATE_SUSPENDED, nil, nil, si, pi);    // 以挂起方式运行进程
    if result then
    begin
      ProcHnd := pi.hProcess;
      ThrdHnd := pi.hThread;
      ProcId := pi.dwProcessId;
      { 获取外壳进程运行状态，[ctx.Ebx+8]内存处存的是外壳进程的加载基址，ctx.Eax存放有外壳进程的入口地址 }
      ctx.ContextFlags := CONTEXT_FULL;
      GetThreadContext(ThrdHnd, ctx);
      ReadProcessMemory(ProcHnd, Pointer(ctx.Ebx+8), @BaseAddr, SizeOf(Cardinal), Old);    // 读取加载基址
      p := Pointer(BaseAddr);
      { 计算外壳进程占有的内存 }
      while VirtualQueryEx(ProcHnd, p, MemInfo, Sizeof(MemInfo)) <> 0 do
      begin
        if MemInfo.State = MEM_FREE then
          break;
        p := Pointer(Cardinal(p) + MemInfo.RegionSize);
      end;
      ImageSize := Cardinal(p) - Cardinal(BaseAddr);
    end;
end;
{ 创建外壳进程并用目标进程替换它然后执行 }
function AttachPE(CmdParam: string; peH: PImageNtHeaders; peSecH: PImageSectionHeaders;
      Ptr: Pointer; ImageSize: Cardinal; var ProcId: Cardinal): Cardinal;
var
    s: string;
    Addr, Size: Cardinal;
    ctx: TContext;
    Old: Cardinal;
    p: Pointer;
    Thrd: Cardinal;
begin
    result := INVALID_HANDLE_VALUE;
    s := PrepareShellExe(CmdParam, peH.OptionalHeader.ImageBase, ImageSize);
    if CreateChild(s, ctx, result, Thrd, ProcId, Addr, Size) then
    begin
      p := nil;
      if (peH.OptionalHeader.ImageBase = Addr) and (Size >= ImageSize) then    // 外壳进程可以容纳目标进程并且加载地址一致
      begin
        p := Pointer(Addr);
        VirtualProtectEx(result, p, Size, PAGE_EXECUTE_READWRITE, Old);
      end
      else if IsNT then    // 98 下失败
      begin
        if UnloadShell(result, Addr) then    // 卸载外壳进程占有内存
          // 重新按目标进程加载基址和大小分配内存
          p := MyVirtualAllocEx(Result, Pointer(peH.OptionalHeader.ImageBase), ImageSize, MEM_RESERVE or MEM_COMMIT, PAGE_EXECUTE_READWRITE);
        if (p = nil) and hasRelocationTable(peH) then    // 分配内存失败并且目标进程支持重定向
        begin
          // 按任意基址分配内存
          p := MyVirtualAllocEx(result, nil, ImageSize, MEM_RESERVE or MEM_COMMIT, PAGE_EXECUTE_READWRITE);
          if p <> nil then
            DoRelocation(peH, Ptr, p);    // 重定向
        end;
      end;
      if p <> nil then
      begin
        WriteProcessMemory(Result, Pointer(ctx.Ebx+8), @p, Sizeof(DWORD), Old);    // 重置目标进程运行环境中的基址
        peH.OptionalHeader.ImageBase := Cardinal(p);
        if WriteProcessMemory(Result, p, Ptr, ImageSize, Old) then    // 复制PE数据到目标进程
        begin
          ctx.ContextFlags := CONTEXT_FULL;
          if Cardinal(p) = Addr then
            ctx.Eax := peH.OptionalHeader.ImageBase + peH.OptionalHeader.AddressOfEntryPoint    // 重置运行环境中的入口地址
          else
            ctx.Eax := Cardinal(p) + peH.OptionalHeader.AddressOfEntryPoint;
          SetThreadContext(Thrd, ctx);    // 更新运行环境
          ResumeThread(Thrd);             // 执行
          CloseHandle(Thrd);
        end
        else begin    // 加载失败,杀掉外壳进程
          TerminateProcess(Result, 0);
          CloseHandle(Thrd);
          CloseHandle(Result);
          Result := INVALID_HANDLE_VALUE;
        end;
      end
      else begin // 加载失败,杀掉外壳进程
        TerminateProcess(Result, 0);
        CloseHandle(Thrd);
        CloseHandle(Result);
        Result := INVALID_HANDLE_VALUE;
      end;
    end;
end;
function MemExecute(const ABuffer; Len: Integer; CmdParam: string; var ProcessId: Cardinal): Cardinal;
var
    peH: PImageNtHeaders;
    peSecH: PImageSectionHeaders;
    Ptr: Pointer;
    peSz: Cardinal;
begin
    result := INVALID_HANDLE_VALUE;
    if alignPEToMem(ABuffer, Len, peH, peSecH, Ptr, peSz) then
    begin
      result := AttachPE(CmdParam, peH, peSecH, Ptr, peSz, ProcessId);
      VirtualFree(Ptr, peSz, MEM_DECOMMIT);
      //VirtualFree(Ptr, 0, MEM_RELEASE);
    end;
end;
initialization
    MyVirtualAllocEx := GetProcAddress(GetModuleHandle('Kernel32.dll'), 'VirtualAllocEx');
end.
{
写了一个简单程序测试通过：）
}
program Test;
//{$APPTYPE CONSOLE}
uses
      SysUtils,
      Classes,
      PEUnit in 'PEUnit.pas';
var
      ABuffer: array of byte;
      Stream: TFileStream;
      ProcessId: Cardinal;
begin
      Stream := TFileStream.Create('HT.exe', fmOpenRead);
      try
          SetLength(ABuffer, Stream.Size);
          Stream.ReadBuffer(ABuffer[0], Stream.Size);
          MemExecute(ABuffer[0], Stream.Size, '', ProcessId);
      finally
          Stream.Free;
      end;
end.

{
   EXE Memory Unit Two For NT,2K,XP,2K3,LH By Anskya
   Email:Anskya@Gmail.com
   Web:Www.Anskya.Net
   Date:04.08.2005
   Thank:Aphex
   procedure MemoryRunExe(FileMemory: Pointer);
   [
     This program creates undetected executables that only run
     on Windows NT, 2000, XP, 2003 and LongHorn.   ??
   ]
}
Unit MemoryRunUnitTwo;
interface
{$IMAGEBASE $10000000}
uses
   Windows;
type
   TSections = array [0..0] of TImageSectionHeader;
procedure MemoryRunExe(FileMemory: Pointer);
implementation
function GetAlignedSize(Size: dword; Alignment: dword): dword;
begin
   if ((Size mod Alignment) = 0) then
   begin
     Result := Size;
   end
   else
   begin
     Result := ((Size div Alignment) + 1) * Alignment;
   end;
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 MemoryRunExe(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.SizeOfHeaders, 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;
end.
{
写了一个简单程序测试通过：）
}
program Test1;
//{$APPTYPE CONSOLE}
uses
   SysUtils,
   Classes,
   MemoryRunUnitTwo in 'MemoryRunUnitTwo.pas';
var
     ABuffer: array of byte;
     Stream: TFileStream;
     ProcessId: Cardinal;
begin
     Stream := TFileStream.Create('HT.exe', fmOpenRead);
     try
         SetLength(ABuffer, Stream.Size);
         Stream.ReadBuffer(ABuffer[0], Stream.Size);
         MemoryRunExe(@ABuffer[0]);
     finally
         Stream.Free;
     end;
end.