oldbeefer.....
CCleaner is a whole different ball game; he's talking registry cleaners.
Download
THIS
First page up, above, will show
all programs registered to the registry (different and far more comprehensive to the standard add/remove list. Don't ask!); you may find some related reference to 'CDA' there, with the facility - should you choose - to remove it (there is a backup). Right-clicking an entry gives further 'Advanced Info.'
That said, don't forget, it may be there for a reason and Avast is throwing up a false positive.
NB: You can also clean the whole registry with this program (although that's another subject). I only use it for the first page view of programs; preferrring an alternative for the rest.