[geeks] SSH Scans Increasing

Ido Dubrawsky idubraws at dubrawsky.org
Thu Aug 21 10:33:22 CDT 2008


I haven't seen anything lately.  I'm running the latest OpenSSH as well.  On top of that I only accept public-key/private-key authentication.  Either way I haven't seen anything at this point.

Ido

Jonathan C. Patschke Wrote:
> Has anyone else seen a very sharp increase in the number of SSH scans
> since this weekend?
>
> I have a program running out of cron that looks for break-ins and updates
> my /etc/pf.conf automagically.  It mails me when it adds a new host to the
> list.  I used to get 2 - 3 per week, but now I see 20 - 30 per day.
> 
> All the new scans appear to use the same dictionary.  It starts off with
> some German words pertaining to academia, and then a straight alphabetical
> dictionary attack (abel, abi, abraham, access, account...).  The IP
> addresses scanning me don't come from the same country, so I suspect this
> is some new botnet.

-- 
Ido Dubrawsky
Network Security Architect
dubrawsky.org
http://www.dubrawsky.org/blogs
http://idubrawsky.wordpress.coms


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