Pondus and Santiag, thanks for your fast reply. I tried to find the part of the code in my files, but even through cpanel, avast didn't allow me to open or to download the "infected" file so as to edit it. (For a little bit of time, i had also a problem to enter at avast.forum because the pop up warning window appeared again!). So, searching for another solution, i went to the backend and unpublished from my website the AustonSlideshow component....and now everything is OK! No warnings! But in any case....i believe that in general this issue remains a problematic situation that has to be resolved...