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

PTFULLHK.DLL Information and Removal:
PTFULLHK.DLL is known as: Trojan.Generic [PCTools] not-a-virus:Monitor.Win32.Perflogger.ca [Kaspersky Lab] Keylog-Perfect.dll [McAfee] Mal/Generic-A [Sophos] MonitoringTool:Win32/PerfectKeylogger [Microsoft] not-a-virus:Monitor.Win32.Perflogger [Ikarus].
MD5 of PTFULLHK.DLL = 7719E3244553DCE7B70A9D1083E291DC
PTFULLHK.DLL size is 24576 bytes.
Full path on a computer: %SYSTEM%\PTFULLHK.DLL
Related Files:
%SYSTEM%\PTFULL.EXE
%SYSTEM%\PTFULLHK.DLL
%SYSTEM%\PTFULLR.EXE
%SYSTEM%\PTFULLWB.DLL