system
5
In addition to what has been said,
Windows password protects System files to prevent inadvertant tampering. Usually, a quick analysis of the pathway and filename alleviates any worries.
Spybot and Adaware do not password protect their files.
Avast does not scan them because their “chest” and “vault” are the same type of system as the System Restore in Windows. Avast will only indicate the presence of the files, but will not have the ability to do anything with them. (You really should not unless you are sure).
Good luck.