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On Fri, 2 Oct 2009 17:17 -0000, glarkin wrote:
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Jeremy Lea wrote:
> Hi,
>
> This is off topic to this list, but I dont want to subscribe to -chat
> just to post there... Someone is currently running a distributed SSH
> attack against one of my boxes - one attempted login for root every
> minute or so for the last 48 hours. They wont get anywhere, since the
> box in question has no root password, and doesn't allow root logins via
> SSH anyway...
>
> But I was wondering if there were any security researchers out there
> that might be interested in the +-800 IPs I've collected from the
> botnet? The resolvable hostnames mostly appear to be in Eastern Europe
> and South America - I haven't spotted any that might be 'findable' to
> get the botnet software.
>
> I could switch out the machine for a honeypot in a VM or a jail, by
> moving the host to a new IP, and if you can think of a way of allowing
> the next login to succeed with any password, then you could try to see
> what they delivered... But I don't have a lot of time to help.
>
> Regards,
> -Jeremy
>
Hi Jeremy,
You could set up DenyHosts and contribute to the pool of IPs that are
attempting SSH logins on the Net:
http://denyhosts.sourceforge.net/faq.html#4_0
It also looks like there's been quite a spike of SSH login activity
recently: http://stats.denyhosts.net/stats.html
Hope that helps,
Greg
- --
Greg Larkin
http://www.FreeBSD.org/ - The Power To Serve
http://www.sourcehosting.net/ - Ready. Set. Code.
http://twitter.com/sourcehosting/ - Follow me, follow you
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Another temporary to long term solution might be the following utilities,
ports/security/sshguard-pf ports/security/expiretable
This is more of a pf based solution so that's up to your policies and decision.
Giving thanks to the post about DenyHosts I didn't know that existed till this
point.
Best regards.
- --
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