Ok, we will check that stij.exe file.

Please go to: VirusTotal

[*] Click the Choose File button.
[*] Please copy/paste the following text into the ‘File name:’ box:

    C:\Windows\System32\ljkb\stij.exe  

[*] Click Open then click the Scan it! button just below.
[*] This will scan the file. Please be patient.
[*] If you get a message saying File already analyzed: click Reanalyse
[*] Once scanned, copy and paste the URL from your browser address bar in your next reply.