aatu.exe is part of DrummerBoy Spyware which is also known as Downloader-EV and Mendware. It is trying to hide from the user inside %AppData% using random filenames and registry keys making it look much like the Peper trojan.

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If you find this process (file) on your computer, you should delete it and scan your computer with SpyEraser to ensure your privacy and sytem security.

If you want to know the detail information about the file and manage it relaxedly, we recommend WinTasks 5 Pro for you.