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Thread: 'J Random User' Account Appeared on list of users?

  1. #1
    Join Date
    Jul 2009
    Beans
    31
    Distro
    Ubuntu 13.10 Saucy Salamander

    'J Random User' Account Appeared on list of users?

    Hello everyone,

    When I clicked on my Ubuntu power (start?) button on the top-right corner, a user account by the name of "J Random User" appeared on the list of users in-between the Guest account and my main account that I'm currently using. I restarted my computer and now the user account has disappeared. Should I be worried that my computer has been compromised by someone/something, or is there a logical explanation for this?

    Edit: Just to clarify, I'm currently using Ubuntu 13.10.
    I have to use the terminal so often nowadays just to fix the abundant problems Ubuntu has, that I am starting to learn the Linux code. Kind of a good thing coming from a bad thing.

  2. #2
    Join Date
    Jul 2008
    Location
    The Left Coast of the USA
    Beans
    Hidden!
    Distro
    Kubuntu

    Re: 'J Random User' Account Appeared on list of users?

    Moved to Security Discussions.

    Jonn Q. Public, J Random User and J Random Hacker are folks you don't want to see...
    The Left Coast Geek * The Community ATI Driver Wiki * Find what you need in the Ubuntu Community wikis

    Don't let the truth get in the way of a good story!
    This universe is crazy. I'm going back to my own.


  3. #3
    Join Date
    Mar 2006
    Location
    Williams Lake
    Beans
    Hidden!
    Distro
    Ubuntu Development Release

    Re: 'J Random User' Account Appeared on list of users?

    Have you got a remote desktop client, or desktop sharing enabled with a simple or no password?

  4. #4
    Join Date
    Apr 2013
    Beans
    6

    Re: 'J Random User' Account Appeared on list of users?

    I got today exactly same issue, I didn't rebooted system yet - only disconnected it from Internet. I have ssh server and TeamViewer on my computer, but ssh shouldn't be a issue as my laptop isn't visible from Internet.

  5. #5
    Join Date
    Nov 2013
    Location
    On the edge
    Beans
    831
    Distro
    Ubuntu

    Re: 'J Random User' Account Appeared on list of users?

    But how many users is it visible to on your WiFi network?

  6. #6
    Join Date
    Nov 2013
    Beans
    1

    Re: 'J Random User' Account Appeared on list of users?

    I experienced exactly the same issue. I can confirm that the account disappeared after rebooting.

    As a safety measure, I formatted my hard drive, reinstalled Ubuntu, and I am changing my passwords.

    Is it possible that this is a bug, or was my system compromised? How could that have happened? How could this have been avoided?

  7. #7
    Join Date
    Nov 2013
    Beans
    1

    Re: 'J Random User' Account Appeared on list of users?

    Spotting a "J Random User" is why I ended up at this message, it seeming to be the only relevant thing Google has revealed.
    I noticed "J.Random User" in the list when I went to logoff five minutes ago.

  8. #8
    Join Date
    Nov 2013
    Location
    On the edge
    Beans
    831
    Distro
    Ubuntu

    Re: 'J Random User' Account Appeared on list of users?

    To all three ussrs that saw "J Random User" show up, please run these commands and post the results
    Code:
    w
    and
    Code:
    sudo service --status-all
    run them when you see the user account show up again and also right now.

  9. #9
    Join Date
    Nov 2013
    Location
    On the edge
    Beans
    831
    Distro
    Ubuntu

    Re: 'J Random User' Account Appeared on list of users?

    Better yet just run this and post the output
    Code:
    grep *random* /var/log/auth.log | less

  10. #10
    Join Date
    Nov 2013
    Beans
    1

    Re: 'J Random User' Account Appeared on list of users?

    Same here. New installation of Ubuntu 13.10.

    Installed skype, emacs, vlc, clementin, vbox (and windows 8 in it), xchat, wireshark, htop, qbittorent, dropbox.

    <my-username>@metropolis:~$ sudo grep *random* /var/log/auth.log
    Nov 25 22:09:23 metropolis sudo: <my-username> : TTY=pts/0 ; PWD=/home/<my-username> ; USER=root ; COMMAND=/bin/grep *random* /var/log/auth.log
    <my-username>@metropolis:~$ w
    22:13:45 up 1:08, 2 users, load average: 0,12, 0,24, 0,61
    USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT
    <my-username> tty7 :0 21:06 1:07m 4:07 0.15s init --user
    <my-username> pts/0 :0 22:04 1.00s 0.19s 0.00s w
    <my-username>@metropolis:~$ sudo service --status-all
    [ + ] acpid
    [ + ] anacron
    [ + ] apparmor
    [ ? ] apport
    [ + ] avahi-daemon
    [ + ] bluetooth
    [ - ] brltty
    [ + ] console-font
    [ + ] console-setup
    [ + ] cron
    [ + ] cups
    [ + ] cups-browsed
    [ - ] dbus
    [ ? ] dns-clean
    [ + ] friendly-recovery
    [ - ] grub-common
    [ ? ] irqbalance
    [ - ] kerneloops
    [ ? ] killprocs
    [ + ] kmod
    [ ? ] lightdm
    [ ? ] networking
    [ ? ] ondemand
    [ - ] openvpn
    [ ? ] pppd-dns
    [ - ] procps
    [ - ] pulseaudio
    [ ? ] rc.local
    [ + ] resolvconf
    [ + ] rfkill-restore
    [ + ] rfkill-store
    [ - ] rsync
    [ + ] rsyslog
    [ + ] saned
    [ ? ] sendsigs
    [ + ] setvtrgb
    [ ? ] speech-dispatcher
    [ - ] sudo
    [ + ] udev
    [ ? ] umountfs
    [ ? ] umountnfs.sh
    [ ? ] umountroot
    [ - ] unattended-upgrades
    [ - ] urandom
    [ ? ] vboxautostart-service
    [ + ] vboxballoonctrl-service
    [ + ] vboxdrv
    [ + ] vboxweb-service
    [ - ] x11-common
    Last edited by letrec; November 25th, 2013 at 09:25 PM. Reason: added: a list of application installed.

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