Process: a.exe
from 
Stardock Forums
Stardock Forums
a.exe - General Information
Name:
a.exe
Publisher
Product:
Default location:
%USERPROFILE%\AppData\Local\Temp\a.exe
a.exe - Description and Recommendation
a.exe is registered as the W32.Ahlem.A@mm worm which is transmitted via e-mail and attempts to install itself on your computer. This process is a security risk and should be removed from your system.
a.exe - Uninstall Techniques