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Author kernel brute segfault
FEEB

2006-05-15, 1:12 pm

I am running RHEL4 on Quad Opteron hardware.

I started to see these in the logs:

kernel: brute[29385]: segfault at 0000000000000000 rip 0000000008048e33 rsp
00000000ffffca30 error 4

What is brute? What can I do about this?

Thanks


<feeb@chem.utoronto.ca>




FEEB

2006-05-16, 7:12 am

On Mon, 15 May 2006 10:05:22 -0400 (EDT), FEEB wrote:

>I am running RHEL4 on Quad Opteron hardware.
>
>I started to see these in the logs:
>
>kernel: brute[29385]: segfault at 0000000000000000 rip 0000000008048e33

rsp
>00000000ffffca30 error 4
>
>What is brute? What can I do about this?
>
>Thanks


Just for the record. Brute is an executable that is part of some SSH
cracking package. The package tries to SSH to a predefined B-block of
addresses using predefined combinations of login names and passwords (for
instance login "test" with password "test").
It generates a log file with combinations that returned a shell.

The package was installed via a compromised user account (user has been
known to distribute his passwords) from Romania and placed in /var/tmp and
therefore invisible to "locate" (in RedHat several directories are exempt
from updatedb, one of them is /var/tmp).

The user has been dealt with.

Cheers


<feeb@chem.utoronto.ca>




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