Please be adviced Avast detected ET5sc.exe and removed to chest. Looks like a false positive to me.
Please see the Virus Total and Jotti`s malware scan here :
If only GData and avast detect it - GData uses avast as one of its two scanners so counts as 1 detection and almost certainly an FP.
Send the sample to avast as a False Positive:
Open the chest and right click on the file and select ‘Submit to virus lab…’ complete the form and submit, the file will be uploaded during the next update.