Hi there, this is a genuine alert and we have found where it hides

We will use FRST for additional checks. Re-run FRST/FRST64 by double-clicking:

•Type browserupdatecheck.in;wpad.dat into the Search: field in FRST then click the Search Registry button.
•FRST will search your computer for files and when finished it will produce a log Search.txt in the same directory the tool is run.
•Please attach it to your reply.