Rkhunter reported me that it found hidden files in /etc:
Warning: Hidden file found: /etc/.group.48239632746: ASCII text
Warning: Hidden file found: /etc/.passwd.13046384800: ASCII text
Warning: Hidden file found: /etc/.passwd.14350544901: ASCII text
Warning: Hidden file found: /etc/.passwd.16941124733: ASCII text
Warning: Hidden file found: /etc/.passwd.22154181091: ASCII text
Warning: Hidden file found: /etc/.passwd.48239632746: ASCII text
Should I be worried about it?
It seems those files are copies of the original passwd file....
Regards
Question answered by OP in comments
What do you use to create users? If you use GUI tools they might be creating a backup. You should also take a look at output of: