Seems a false positive…
To know if the file (C:\Windows\services.exe) is a false positive, please submit it to VirusTotal and let us know the result. If it is indeed a false positive, send it in a password protected zip to virus@avast.com
Please, mention in the body of the message why you think it is a false positive and the password used. Thanks.
The other files (*.tmp) are belong to avast… what is even stranger…
You can delete them.

By the way, there is no rush to delete a file within the Chest. They’re safe there and can’t harm. It’s good to check if they’re not false positives.