Incidents
Re: Weird SSH attack last night and this morning (still ongoing) May 07 2008 04:54PM
Gary Baribault (gary baribault net)
I'm hit all the time too, but it's usually scripted, and they'll try 6 -
8 logins before my DenyHosts script bans the IP address. In this case,
there is only one login attempt, and it with root .. then that source IP
doesn't try again .. it's as if someone just got some default password
or maybe a blank one and has asked an entire botnet to try it once for
all machines on the Internet .. it's weird!

Gary B

bigbadhoss (at) gmail (dot) com [email concealed] wrote:
> These happen all the time on my servers, probably just background
noise, but it could be something else.
> Sent from my Verizon Wireless BlackBerry
>
> -----Original Message-----
> From: Gary Baribault <gary (at) baribault (dot) net [email concealed]>
>
> Date: Wed, 07 May 2008 08:27:15
> To:incidents (at) securityfocus (dot) com [email concealed]
> Subject: Weird SSH attack last night and this morning (still ongoing)
>
>
> I don't know what is going on last night and this morning ... I have
> three Linux servers facing the Internet, two on cable modems and another
> on a static IP/commercial connection and this last one is a gateway to a
> Web/FTP/SMTP/Pop3/NTP Linux based system.
>
> I have DenyHosts installed on all three and have blocked about 75
> attempts .. from known compromised adresses .. The log shows
> (obviously) that there where even more attempts from adresses that are
> unknown to DenyHosts but there was only one login attemps per adress and
> it was with the Root account .. which is obviously blocked in my sshd
> config ..
>
> Of the three machines, one of them only had about 10 attempts, but the
> other two had about 200 attempts .. all of them with only 1 try with the
> user Root ..
>
> Is any one else seing this? or am I being targeted? This is still going
> on now .. and it started arround 10:00 last night GMT+4
>

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