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The file USAG.EXE is malware related.
You must delete the file USAG.EXE immediately!
Delete the file USAG.EXE without delay!
Kill the process USAG.EXE and remove USAG.EXE from the Windows startup.
USAG.EXE Information and Removal:
MD5 of USAG.EXE = 0FAB06DDE2A71AB2F652171EC9B5773E
USAG.EXE size is 197120 bytes.
Full path on a computer: %APPDATA%\PIUB\USAG.EXE
Related Files:
%APPDATA%\PIUB\USAG.EXE
%APPDATA%\YNQOIN\MAOL.UQR
%TEMP%\TMP79485A58.BAT