Re: Suspicious files in /tmp

["Jamie Riden" <jamie.riden () gmail com>]

Hi there,

It looks like the bot exploits a remote file include in
mosConfig_absolute_path - I think this would be Mambo or a component
of Mambo. It looks a lot like a compromise attempt I saw a year or so
back - http://infosecwriters.com/texts.php?op=display&id=416  [pdf,
sorry].

In the one I saw, initially, the mosConfig_absolute_path vulnerability
was exploited to drop and execute a connect-back shell. (Cb.pl and
cback seem to be connect back shells of the same type as I saw.) In
mine, the connect back shell immediately downloaded a perl bot which
had similar spreading code in it to your 'bot' file. (ie. search
google for potentially vulnerable Mambo installs and attempt to
exploit them.)

Have you ever had Mambo on this box? Try grepping your apache logs for
'mosConfig_absolute_path=http'

If it's any consolation, in the one I saw, they didn't bother to make
the bot persistent after reboot, nor to install a rootkit.

cheers,
Jamie

On 16/06/07, kladizkov.thehome <kladizkov.thehome () gmail com> wrote:
> Hi,
>
> My firewall LFD, pulled out three perl scripts from /tmp. It was found
> to be executing in my server. I have attached the scripts along with
> this mail. Is this issue familiar to anyone?
>
> How can a script uploaded to /tmp be executed when it has noexec privilege?
>
>
> -------------------------------------------------------------------------
> This list sponsored by: SPI Dynamics
>
> ALERT: .How a Hacker Launches a SQL Injection Attack!.- White Paper
> It's as simple as placing additional SQL commands into a Web Form input box
> giving hackers complete access to all your backend systems! Firewalls and IDS
> will not stop such attacks because SQL Injections are NOT seen as intruders.
> Download this *FREE* white paper from SPI Dynamics for a complete guide to protection!

--
Jamie Riden, CISSP / jamesr () europe com / jamie () honeynet org uk
UK Honeynet Project: http://www.ukhoneynet.org/

-------------------------------------------------------------------------
This list sponsored by: SPI Dynamics

ALERT: .How a Hacker Launches a SQL Injection Attack!.- White Paper 
It's as simple as placing additional SQL commands into a Web Form input box 
giving hackers complete access to all your backend systems! Firewalls and IDS 
will not stop such attacks because SQL Injections are NOT seen as intruders. 
Download this *FREE* white paper from SPI Dynamics for a complete guide to protection! 

https://download.spidynamics.com/1/ad/sql.asp?Campaign_ID=70160000000Cn8E
--------------------------------------------------------------------------