{ 注入远程进程 }
function InjectTo(const Host, Guest: string; const PID: DWORD = 0): DWORD;
var
{ 被注入的进程句柄,进程ID}
hRemoteProcess: THandle;
dwRemoteProcessId: DWORD;
{ 写入远程进程的内容大小 }
memSize: DWORD;
{ 写入到远程进程后的地址 }
pszLibFileRemote: Pointer;
iReturnCode: Boolean;
TempVar: DWORD;
{ 指向函数LoadLibraryW的地址 }
pfnStartAddr: TFNThreadStartRoutine;
{ dll全路径,需要写到远程进程的内存中去 }
pszLibAFilename: PwideChar;
begin
Result := 0;
{ 设置权限 }
EnabledDebugPrivilege(True);
{ 为注入的dll文件路径分配内存大小,由于为WideChar,故要乘2 }
Getmem(pszLibAFilename, Length(Guest) * 2 + 1);
StringToWideChar(Guest, pszLibAFilename, Length(Guest) * 2 + 1);
{ 获取进程ID }
if PID > 0 then
dwRemoteProcessID := PID
else
GetMyProcessID(Host, False, dwRemoteProcessID);
{ 取得远程进程句柄,具有写入权限}
hRemoteProcess := OpenProcess(PROCESS_CREATE_THREAD + {允许远程创建线程}
PROCESS_VM_OPERATION + {允许远程VM操作}
PROCESS_VM_WRITE, {允许远程VM写}
FALSE, dwRemoteProcessId);
{ 用函数VirtualAllocex在远程进程分配空间,并用WriteProcessMemory中写入dll路径 }
memSize := (1 + lstrlenW(pszLibAFilename)) * sizeof(WCHAR);
pszLibFileRemote := PWIDESTRING(VirtualAllocEx(hRemoteProcess, nil, memSize, MEM_COMMIT, PAGE_READWRITE));
TempVar := 0;
iReturnCode := WriteProcessMemory(hRemoteProcess, pszLibFileRemote, pszLibAFilename, memSize, TempVar);
if iReturnCode then
begin
pfnStartAddr := GetProcAddress(GetModuleHandle('Kernel32'), 'LoadLibraryW');
TempVar := 0;
{ 在远程进程中启动dll }
Result := CreateRemoteThread(hRemoteProcess, nil, 0, pfnStartAddr, pszLibFileRemote, 0, TempVar);
end;
{ 释放内存空间 }
Freemem(pszLibAFilename);
end;
