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Groups > comp.os.linux.misc > #14147

Re: GUI terminated suddenly and restarted..

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On Wed, 18 Mar 2015 13:38:34 +0000, The Natural Philosopher wrote:
>
> Simply put after aroudn 7 hours of flawless operation a Mint 17.1 Mate 
> computer lost the GUI completely, dropped back briefly to a text login 
> and then presented me with a logon screen.
>
> I assume the X server had crashed and restarted.
> First of all, is that a valid and comprehensive assumption?

I'll +1 on that assumption.

> Secondly any clues as to why?

Not really at this point.

> It was synchronous with trying to access a particular web page in 
> Firefox, but that is all.

Based on the inordinate amount of information provided, my WAG is that
the web page attempted a malware exploit. The exploit was a
deliberate DOS attack, or it just screwed up and corrupted the
software stack with the resulting JOW.

As for clues, the only possible places I would know to look would be in
/var/log/Xorg.0.log*, ~/xsession-errors and a core.

As far as I know, default installs do not have core enabled.
Each gui login causes /var/log/Xorg.0.log.old to be over written
so you better get a copy for forensic study.

I have found it helpful to get a copy of .xsession-errors just after
starting the Desktop Manager. That way I know how far down to start
looking around for something having to do with an application.

> After relogging in the web page was just fine.

That does not surprise me. The better malware will blacklist any ip
address it has made an attempt at infecting. That is to help prevent
analysis by anti-virus software.

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Thread

GUI terminated suddenly and restarted.. The Natural Philosopher <tnp@invalid.invalid> - 2015-03-18 13:38 +0000
  Re: GUI terminated suddenly and restarted.. Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2015-03-18 07:19 -0700
    Re: GUI terminated suddenly and restarted.. Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-03-18 17:01 +0000
  Re: GUI terminated suddenly and restarted.. Aragorn <thorongil@telenet.be.invalid> - 2015-03-18 17:24 +0100
    Re: GUI terminated suddenly and restarted.. Baho Utot <baho-utot@columbus.rr.com> - 2015-03-18 16:34 -0400
      Re: GUI terminated suddenly and restarted.. Dan Espen <despen@verizon.net> - 2015-03-18 16:52 -0400
      Re: GUI terminated suddenly and restarted.. Aragorn <thorongil@telenet.be.invalid> - 2015-03-18 22:27 +0100
        Re: GUI terminated suddenly and restarted.. The Natural Philosopher <tnp@invalid.invalid> - 2015-03-19 09:45 +0000
          Re: GUI terminated suddenly and restarted.. Aragorn <thorongil@telenet.be.invalid> - 2015-03-19 18:59 +0100
            Re: GUI terminated suddenly and restarted.. The Natural Philosopher <tnp@invalid.invalid> - 2015-03-19 18:43 +0000
          Re: GUI terminated suddenly and restarted.. faeychild <faeychild@nomail.afraid.org> - 2015-03-20 08:19 +1100
  Re: GUI terminated suddenly and restarted.. Bit Twister <BitTwister@mouse-potato.com> - 2015-03-18 18:05 +0000
    Re: GUI terminated suddenly and restarted.. The Natural Philosopher <tnp@invalid.invalid> - 2015-03-18 18:51 +0000
      Re: GUI terminated suddenly and restarted.. J G Miller <miller@yoyo.ORG> - 2015-03-18 20:41 +0000

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