[nsp-sec] SSH scanners on the rise

[Jeff Wolfe]

On 8/9/10 8:12 AM, Thomas Hungenberg wrote:
> ----------- nsp-security Confidential --------
>
> Joel Rosenblatt schrieb:
>> Attached is the list of scanners from last night (about 835) The number
>> has been increasing by about 200 for the last 4 days.
>
> I recently heard of some web server compromises via vulnerabilities in phpMyAdmin
> where the attackers installed '/tmp/dd_ssh' (MD5 24dac6bab595cd9c3718ea16a3804009)
> to launch SSH bruteforce attacks.
>
> Looks similar to:
> <http://support.f5.com/kb/en-us/solutions/public/11000/700/sol11719.html>


Yeah, sounds familiar..

In case it's helpful to anyone, we had 2 incidents of http/phpmyadmin 
attempts coming from 91.193.157.206. I looked at it in a sandbox,  If it 
finds a vulnerable version of phpMyadmin, it downloads the dd_ssh php 
script from that same IP via ftp.

The PHP container has a linux executable that appears to be the ssh 
scanner. Once installed and executed, the copy of dd_ssh we observed 
tried to contact an apparent C&C at 85.214.117.64 on 54509.


-JEff

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Penn State - College of Earth and Mineral Sciences