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Re: Am I infected with a rootkit?

From Eduardo M KALINOWSKI <eduardo@kalinowski.com.br>
Newsgroups linux.debian.user
Subject Re: Am I infected with a rootkit?
Date 2023-04-16 14:50 +0200
Message-ID <Gl9Zn-2pRY-3@gated-at.bofh.it> (permalink)
References <Gl9G1-2pKU-1@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On 16/04/2023 09:19, Jesper Dybdal wrote:
> And there in the bash history were 4 lines that I had not written :-(
> 
> I am certain that nobody had been in my apartment while I was gone. And 
> even if they had, nobody with a key to my apartment would dream of 
> writing things like the 4 lines that I found in the history file.
> 
> The 4 lines were:
>> md5users
>> sp md5users
>> sp /x/md5users
>> ps /x/md5users
> There is no file named "md5users" or directory named "/x" or command 
> named "sp" on the Debian machine.

Which shell do you use, and how is it configured? Note that bash by 
default does not share history between sessions, so even if someone 
logged in as root (via other ssh session) and typed them, they would not 
appear in your ssh session.

See https://mywiki.wooledge.org/BashFAQ/088, or wait for Greg to chime 
in with details and corrections.


-- 
Eduardo M KALINOWSKI
eduardo@kalinowski.com.br

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Thread

Am I infected with a rootkit? Jesper Dybdal <jd-debian-user@dybdal.dk> - 2023-04-16 14:30 +0200
  Re: Am I infected with a rootkit? Eduardo M KALINOWSKI <eduardo@kalinowski.com.br> - 2023-04-16 14:50 +0200
    Re: Am I infected with a rootkit? Michel Verdier <mv524@free.fr> - 2023-04-16 15:20 +0200
      Re: Am I infected with a rootkit? Greg Wooledge <greg@wooledge.org> - 2023-04-16 16:00 +0200
        Re: Am I infected with a rootkit? Michel Verdier <mv524@free.fr> - 2023-04-16 17:20 +0200
    Re: Am I infected with a rootkit? Jesper Dybdal <jd-debian-user@dybdal.dk> - 2023-04-16 16:10 +0200
    Re: Am I infected with a rootkit? Jesper Dybdal <jd-debian-user@dybdal.dk> - 2023-04-18 15:50 +0200
      Re: Am I infected with a rootkit? David Christensen <dpchrist@holgerdanske.com> - 2023-04-18 21:40 +0200
        Re: Am I infected with a rootkit? Jesper Dybdal <jd-debian-user@dybdal.dk> - 2023-04-19 16:00 +0200
  Re: Am I infected with a rootkit? Michel Verdier <mv524@free.fr> - 2023-04-16 15:00 +0200
    Re: Am I infected with a rootkit? Jesper Dybdal <jd-debian-user@dybdal.dk> - 2023-04-16 16:10 +0200
      Re: Am I infected with a rootkit? Jeffrey Walton <noloader@gmail.com> - 2023-04-16 16:50 +0200
      Re: Am I infected with a rootkit? Michel Verdier <mv524@free.fr> - 2023-04-16 17:20 +0200
  Re: Am I infected with a rootkit? Greg Wooledge <greg@wooledge.org> - 2023-04-16 15:10 +0200
    Re: Am I infected with a rootkit? Jesper Dybdal <jd-debian-user@dybdal.dk> - 2023-04-16 16:40 +0200
      Re: Am I infected with a rootkit? Greg Wooledge <greg@wooledge.org> - 2023-04-16 18:00 +0200
        Re: Am I infected with a rootkit? Jesper Dybdal <jd-debian-user@dybdal.dk> - 2023-04-16 18:50 +0200
          Re: Am I infected with a rootkit? Michel Verdier <mv524@free.fr> - 2023-04-16 19:30 +0200
        Re: Am I infected with a rootkit? "Thomas Schmitt" <scdbackup@gmx.net> - 2023-04-16 19:40 +0200
          Re: Am I infected with a rootkit? David Wright <deblis@lionunicorn.co.uk> - 2023-04-16 20:50 +0200
          Re: Am I infected with a rootkit? Jesper Dybdal <jd-debian-user@dybdal.dk> - 2023-04-16 22:20 +0200
      Re: Am I infected with a rootkit? Curt <curty@free.fr> - 2023-04-17 18:50 +0200
  Re: Am I infected with a rootkit? Jesper Dybdal <jd-debian-user@dybdal.dk> - 2023-04-16 16:40 +0200
    Re: Am I infected with a rootkit? <tomas@tuxteam.de> - 2023-04-16 17:20 +0200
    Re: Am I infected with a rootkit? David Wright <deblis@lionunicorn.co.uk> - 2023-04-18 06:50 +0200
      Re: Am I infected with a rootkit? David <bouncingcats@gmail.com> - 2023-04-18 07:40 +0200
        Re: Am I infected with a rootkit? <tomas@tuxteam.de> - 2023-04-18 10:00 +0200
          Re: Am I infected with a rootkit? debian-user@howorth.org.uk - 2023-04-18 13:00 +0200
            Re: Am I infected with a rootkit? <tomas@tuxteam.de> - 2023-04-18 13:10 +0200
          Re: Am I infected with a rootkit? David <bouncingcats@gmail.com> - 2023-04-18 14:10 +0200
            Re: Am I infected with a rootkit? <tomas@tuxteam.de> - 2023-04-18 14:30 +0200
              Re: Am I infected with a rootkit? songbird <songbird@anthive.com> - 2023-04-18 18:00 +0200
                Re: Am I infected with a rootkit? Michel Verdier <mv524@free.fr> - 2023-04-18 18:30 +0200
                Re: Am I infected with a rootkit? Andy Smith <andy@strugglers.net> - 2023-04-18 20:40 +0200
        Re: Am I infected with a rootkit? Jesper Dybdal <jesper@dybdal.dk> - 2023-04-18 16:00 +0200
  Re: Am I infected with a rootkit? David Wright <deblis@lionunicorn.co.uk> - 2023-04-16 16:40 +0200
  Re: Am I infected with a rootkit? David Christensen <dpchrist@holgerdanske.com> - 2023-04-17 03:20 +0200
    Re: Am I infected with a rootkit? Michel Verdier <mv524@free.fr> - 2023-04-17 17:40 +0200
    Re: Am I infected with a rootkit? Stefan Monnier <monnier@iro.umontreal.ca> - 2023-04-17 19:00 +0200
      Re: Am I infected with a rootkit? Tim Woodall <debianuser@woodall.me.uk> - 2023-04-17 20:30 +0200
  Re: Am I infected with a rootkit? Richmond <dnomhcir@gmx.com> - 2023-04-18 10:40 +0200
    Re: Am I infected with a rootkit? Jesper Dybdal <jesper@dybdal.dk> - 2023-04-18 16:00 +0200
      Re: Am I infected with a rootkit? Jeremy Ardley <jeremy@ardley.org> - 2023-04-18 16:10 +0200
        Re: Am I infected with a rootkit? Charles Curley <charlescurley@charlescurley.com> - 2023-04-18 17:00 +0200

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