Re: My server catched a rootkit?

2010-11-30 Thread Brad Alexander
Is misbehaving was my original thought... 2010/11/28 Dotan Cohen dotanco...@gmail.com: 2010/11/29 Brad Alexander stor...@gmail.com: Being familiar enough with your systems and their behavior to know when something ...is missing? -- Dotan Cohen http://gibberish.co.il

Re: My server catched a rootkit?

2010-11-30 Thread Brad Alexander
Agreed. I have a 50-character passphrase, but only have to type it in at the start of the session. :-) On Mon, Nov 29, 2010 at 1:19 PM, Andrei Popescu andreimpope...@gmail.com wrote: On Lu, 29 nov 10, 17:07:43, Brian wrote: On Mon 29 Nov 2010 at 17:39:34 +0200, Andrei Popescu wrote: Does

Re: My server catched a rootkit?

2010-11-29 Thread Brian
On Sun 28 Nov 2010 at 19:28:48 -0500, Brad Alexander wrote: Plus the mundane stuff, like regularly changing passwords, disabling root logins in ssh, and things like that are all a part of your defensive stance. Changing passwords as frequently as changing the locks on the doors of your house

Re: My server catched a rootkit?

2010-11-29 Thread Andrei Popescu
On Lu, 29 nov 10, 10:55:32, Brian wrote: On Sun 28 Nov 2010 at 19:28:48 -0500, Brad Alexander wrote: Plus the mundane stuff, like regularly changing passwords, disabling root logins in ssh, and things like that are all a part of your defensive stance. Changing passwords as frequently

Re: My server catched a rootkit?

2010-11-29 Thread Brian
On Mon 29 Nov 2010 at 17:39:34 +0200, Andrei Popescu wrote: Does key-only login and a passphrase twice as long for the key count? You're a cautious man, I see, and don't mind the extra typing. So, why shouldn't it? -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a

Re: My server catched a rootkit?

2010-11-29 Thread Andrei Popescu
On Lu, 29 nov 10, 17:07:43, Brian wrote: On Mon 29 Nov 2010 at 17:39:34 +0200, Andrei Popescu wrote: Does key-only login and a passphrase twice as long for the key count? You're a cautious man, I see, and don't mind the extra typing. So, why shouldn't it? It's not that bad if you use

Re: My server catched a rootkit?

2010-11-28 Thread Camaleón
On Fri, 26 Nov 2010 22:51:11 +, James Brown wrote: Camaleón wrote: JFYI, there was a recent exploit for ProFtpd: http://www.exploit-db.com/exploits/15449/ Also followed here: proftpd: IAC remote root exploit http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=602769 Not sure if

Re: My server catched a rootkit?

2010-11-28 Thread Nuno Magalhães
On Sun, Nov 28, 2010 at 02:45, Brad Alexander stor...@gmail.com wrote: IMHO, it's another tool in the toolbox. The secret is that you need to be using multiple tools, Such as? Other than a firewall and maybe antivirus. Rkhunter? Tripwire? Why/not any specific one? What about log analysis? --

Re: My server catched a rootkit?

2010-11-28 Thread Camaleón
El 2010-11-28 a las 12:14 -0500, Brad Alexander escribió: (resending to the list) On Sun, Nov 28, 2010 at 7:22 AM, Camaleón wrote: (...) I'm not an expert in linux computer forensics but your logs are displaying scaring information happening in your box. Secunia reports a high impact on

Re: My server catched a rootkit?

2010-11-28 Thread Brad Alexander
Such as, running regular scans on your boxes to know what is changing...Such as running a log analysis tool like ossec or swatch or logwatch...Such as running some manner of host-based and network-based intrusion detection system, like ossec or tripwire and snort, respectively. Like regularly

Re: My server catched a rootkit?

2010-11-28 Thread Dotan Cohen
2010/11/29 Brad Alexander stor...@gmail.com: Being familiar enough with your systems and their behavior to know when something ...is missing? -- Dotan Cohen http://gibberish.co.il http://what-is-what.com -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of

Re: My server catched a rootkit?

2010-11-27 Thread Brian
On Fri 26 Nov 2010 at 18:53:05 +, James Brown wrote: I have received the next messages from crondaemon: /etc/cron.daily/rkhunter: Internal error! Internal error! [snip] Is it a rootkit or other error? What I need to do - remove infected files, reinstall the above packeges or give an

Re: My server catched a rootkit?

2010-11-27 Thread Brad Alexander
On Sat, Nov 27, 2010 at 3:38 PM, Brian a...@cityscape.co.uk wrote: Your course of action will depend on the confidence you place in rkhunter. Mine is zero, but if your reading of its reports is convincing and you think it tells you anything important about your system your only option is to

Re: My server catched a rootkit?

2010-11-26 Thread Camaleón
On Fri, 26 Nov 2010 18:53:05 +, James Brown wrote: I have a VDS under Debian Lenny, ~# uname -a Linux 2.6.18-028stab070.4-ent #1 SMP Tue Aug 17 19:03:05 MSD 2010 i686 GNU/Linux I have received the next messages from crondaemon: /etc/cron.daily/rkhunter: Internal error! Internal

Re: My server catched a rootkit?

2010-11-26 Thread Jochen Schulz
James Brown: I have a VDS under Debian Lenny, ~# uname -a Linux 2.6.18-028stab070.4-ent #1 SMP Tue Aug 17 19:03:05 MSD 2010 i686 GNU/Linux Is the rest of the software as ancient as the kernel? Lenny uses 2.6.26. You should probably ask for a more recent kernel. Is it a rootkit or other

Re: My server catched a rootkit?

2010-11-26 Thread James Brown
Camaleón wrote: On Fri, 26 Nov 2010 18:53:05 +, James Brown wrote: I have a VDS under Debian Lenny, ~# uname -a Linux 2.6.18-028stab070.4-ent #1 SMP Tue Aug 17 19:03:05 MSD 2010 i686 GNU/Linux I have received the next messages from crondaemon: /etc/cron.daily/rkhunter: Internal

Re: My server catched a rootkit?

2010-11-26 Thread James Brown
Jochen Schulz wrote: James Brown: I have a VDS under Debian Lenny, ~# uname -a Linux 2.6.18-028stab070.4-ent #1 SMP Tue Aug 17 19:03:05 MSD 2010 i686 GNU/Linux Is the rest of the software as ancient as the kernel? Lenny uses 2.6.26. You should probably ask for a more recent kernel. Is

Re: My server catched a rootkit?

2010-11-26 Thread James Brown
Jochen Schulz wrote: James Brown: I have a VDS under Debian Lenny, ~# uname -a Linux 2.6.18-028stab070.4-ent #1 SMP Tue Aug 17 19:03:05 MSD 2010 i686 GNU/Linux Is the rest of the software as ancient as the kernel? Lenny uses 2.6.26. You should probably ask for a more recent kernel. Is