I just got the same results with "dngrep"
You must be registered to see the links
and its free.
Install, click on options and scroll down to Archive Options. In the "Add" box put VAR and hit the save button.
Select the folder with your VARs, RARs and other archives that you downloaded from here. Next go to the "Search" section and select "Text" then search for FileManagerSecure.DeleteFile(f) and press "search".
This will show you all the files that contain files that call "FileManagerSecure.DeleteFile(f)" in them. Clean them by editing the JSON and delete the script or just delete them, up to you.
Hope this helps.