Is the file DORIVA.EXE located on your computer? Then your computer is infected.
We do suggest you should remove DORIVA.EXE from your computer as soon as possible.
DORIVA.EXE is Trojan/Backdoor.
Kill the process DORIVA.EXE and remove DORIVA.EXE from the Windows startup.

DORIVA.EXE Information and Removal:
DORIVA.EXE is known as: Trojan-PSW.Bancos [PCTools] PWS-Banker.gen.b [McAfee] Mal/DelpBanc-A [Sophos] TrojanSpy:Win32/Bancos.gen!B [Microsoft] Trojan-Banker.Win32.Banbra [Ikarus].
MD5 of DORIVA.EXE = E5F3C2249B49109F8132C0736E3D2914
DORIVA.EXE size is 4407808 bytes.
Full path on a computer: %USERPROFILE%\PROFILE\DORIVA.EXE
Related Files:
%APPDATA%\MICROSOFT\MEDIA PLAYER\CURRENTDATABASE_59R.WMDB
%APPDATA%\MICROSOFT\WINDOWS MEDIA\9.0\WMSDKNSD.XML
%USERPROFILE%\PROFILE\ATUALIZACAO.DLL
%USERPROFILE%\PROFILE\DORIVA.EXE
%USERPROFILE%\PROFILE\DOWN.PNG
%USERPROFILE%\PROFILE\IMAGE.PNG
%USERPROFILE%\PROFILE\MESSENGER.EXE
%USERPROFILE%\PROFILE\MSG.PNG
%USERPROFILE%\PROFILE\QUICK.EXE
%USERPROFILE%\PROFILE\SOCIAL.EXE