The file ERDNT.EXE is malware related.
You must delete the file ERDNT.EXE immediately!
Delete the file ERDNT.EXE without delay!
Kill the process ERDNT.EXE and remove ERDNT.EXE from the Windows startup.

ERDNT.EXE Information and Removal:
ERDNT.EXE is known as: packed with UPX [Kaspersky Lab].
MD5 of ERDNT.EXE = 89AFDD29832AA923926BDD4B5F5243D5
ERDNT.EXE size is 163328 bytes.
Full path on a computer: %WINDIR%\ERDNT\3-14-2012\ERDNT.EXE
Related Files:
%WINDIR%\ERDNT\3-14-2012\ERDNT.EXE
%WINDIR%\ERDNT\3-14-2012\ERDNTDOS.LOC
%WINDIR%\ERDNT\3-14-2012\ERDNTWIN.LOC
C:\USBFIX\ERUNT\ERUNT.COM
C:\USBFIX\ERUNT\ERUNT.LOC
C:\USBFIX\GO.EXE
C:\USBFIX\RES\PAYPAL-EN.JPG
C:\USBFIX\RES\PAYPAL-FR.JPG
C:\USBFIX\RES\PICTURE.JPG
C:\USBFIX\RES\USBFIX.ICO
C:\USBFIX\TOOLS\GREP.COM
C:\USBFIX\TOOLS\MD5HASH.DLL
C:\USBFIX\TOOLS\SWXCACLS.COM
C:\USBFIX\TOOLS\ZIP.COM
C:\USBFIX\UN-USBFIX.EXE
C:\USBFIX.TXT
%WINDIR%\ERDNT\3-14-2012\DEFAULT
%WINDIR%\ERDNT\3-14-2012\ERDNT.CON
%WINDIR%\ERDNT\3-14-2012\ERDNT.INF
%WINDIR%\ERDNT\3-14-2012\SAM
%WINDIR%\ERDNT\3-14-2012\SECURITY
%WINDIR%\ERDNT\3-14-2012\SOFTWARE
%WINDIR%\ERDNT\3-14-2012\SYSTEM