Comment by TallGuyShort

    $ login -n root
    Login incorrect
    login: backdoor
    No home directory specified in password file!
    Logging in with home=/
    #

I don't agree with the interpretation that Sam tried and failed to login as root, and THEN tried to login as a different user, backdoor. Because if that's what happened, shouldn't there be another $ prompt before he types `backdoor` and gets the #? It seems to me that's an unobfuscated password field and `backdoor` is the password.