Fix race condition

Wait for Sysprep to ExitProcess before cleaning up the DLLs...

Author: Meatballs1

data/post/bypassuac-x64.dll

@@ -85,6 +85,7 @@ void exploit()
 								Wow64DisableWow64FsRedirection(&OldValue);
 								if (ShellExecuteExW(&shinfo) && shinfo.hProcess != NULL)
 								{
+									WaitForSingleObject(shinfo.hProcess, 10000);
 									CloseHandle(shinfo.hProcess);
 								}
 								Wow64RevertWow64FsRedirection(OldValue);

data/post/bypassuac-x86.dll

@@ -168,7 +168,7 @@ def run_injection(pid, dll_path)
       vprint_status("Executing payload")
       thread = host_process.thread.create(exploit_mem + offset, 0)
       print_good("Successfully injected payload in to process: #{pid}")
-      client.railgun.kernel32.WaitForSingleObject(thread.handle,3000)
+      client.railgun.kernel32.WaitForSingleObject(thread.handle,14000)
     rescue Rex::Post::Meterpreter::RequestError => e
       print_error("Failed to Inject Payload to #{pid}!")
       vprint_error(e.to_s)