Renaming files, Changing one word for another word in the file name

Hi,

Ive got lots of files in different folders

.....Hotfolders\Downloads\A

.....Hotfolders\Downloads\B

.....Hotfolders\Downloads\c

Ect (So I go to Hotfolders and traverse the subfolders.

Within these folders I want to change file names SIN_STAT to SINSTAT (The _ Causes major issues later on in the process.

Is there a way of doing this using File System Task, Rename file?

Thanks in advance of any help

Debbie