Keep getting "Downloader Update" on Several PC's

Right now it's not too bad, but I want the number to stop growing, it is currently cleaned on 17 PC's But I want to stop it entirely

C:\Users\user\AppData\Local\Temp\Rar$EX00.962\Statement_03282014.exe

C:\Users\user\AppData\Local\Temp\Rar$EX00.714\Statement_03282014.exe

C:\Users\user\AppData\Local\Temp\Rar$EX00.352\Statement_03282014.exe

C:\Users\user\AppData\Local\Temp\Rar$EX00.569\Statement_03282014.exe

C:\Users\kshipley\AppData\Local\Temp\Rar$EX00.883\Statement_03282014.exe

C:\Users\kshipley\AppData\Local\Temp\Rar$EX00.443\Statement_03282014.exe

C:\Users\draia\AppData\Local\Temp\Temp1_Statement_ddonalds.zip\Statement_03282014.exe

C:\Users\user\AppData\Local\Temp\Rar$EX00.496\Statement_03282014.exe

C:\Users\user\AppData\Local\Temp\ARC4E51\Statement_03282014.exe

C:\Users\user\Desktop\Statement_boardroom3.zip>>Statement_03282014.exe

C:\Users\user\AppData\Local\Temp\Rar$EX00.917\Statement_03282014.exe

C:\Users\user\AppData\Local\Temp\ARCF797\Statement_03282014.exe