I recommend you UnHackMe - Ultimate Malware Killer for fast malware removal:
Free DownloadFully Functional 30-day Trial. No credit card is required.
Reviews. EULA. Privacy Policy. Uninstall.
The file DIAGNOSECONNECTION.DLL is malware related.
You must delete the file DIAGNOSECONNECTION.DLL immediately!
Delete the file DIAGNOSECONNECTION.DLL without delay!
Kill the process DIAGNOSECONNECTION.DLL and remove DIAGNOSECONNECTION.DLL from the Windows startup.
DIAGNOSECONNECTION.DLL Information and Removal:
MD5 of DIAGNOSECONNECTION.DLL = 604BB557DD5C28E0C54AC21EB146182B
DIAGNOSECONNECTION.DLL size is 355328 bytes.
Full path on a computer: %SYSTEM%\DIAGNOSECONNECTION.DLL
Related Files:
%TEMP%\HKUCGQJGNWVWID.TMP
%SYSTEM%\DIAGNOSECONNECTION.DLL