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| Subject: | Illegal user ssh probes |
|---|---|
| Date: | Sat, 25 Sep 2004 17:39:50 +1000 |
On examining /var/log/secure for several firewalls I manage remotely using ssh I have observed a recurrent pattern of probing over the last several that attempts to connect using user id's in the following order... test / guest / admin / admin / user / test We are using SSH 2 RSA key ONLY authentication ie. password based login is not accepted, and none of these user profiles exist on the host so I am not too concerned. However I am wondering if anyone has characterised the probe and/or performed a risk assessment/analysis? The rate of probes is very low so I don't think there is a DOS attack just yet! Is it worth reporting the behaviour to the net block assignees in case they aren't aware their server might be compromised? Is anybody else seeing this? Regards, Frank.
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