apev.exe is a known adware utility. This file, and possibly others, are running in the background on your system. Deleting these files right away is very important.

apev and Adware.W32.Cashback can cause major problems with the security of your system, and need to be scanned and removed. Viruses and adware can be very tricky. Malware creators know their files will be removed if found, so they sometimes give the files names that are similar to known non-harmful files.

A good way to ensure that you only remove unimportant files is to use Computer Associates's free scan of your system.

With apev.exe already on your system, there is a good chance that more harmful file is lurking. You can avoid future problems with viruses and adware by using this free system scanning tool.