[Snort-users] Monitor Authentication

Chris Sandford chris.sandford at ...17499...
Wed Jan 25 03:58:05 EST 2017


Hi,

Thank you for this. Is it possible to direct the rule to look at specific device for attempted SSH logins?


From: Marcin Dulak [mailto:marcin.dulak at ...11827...]
Sent: 24 January 2017 18:11
To: Chris Sandford
Subject: Re: [Snort-users] Monitor Authentication

Hi,

On Tue, Jan 24, 2017 at 3:48 PM, Chris Sandford <chris.sandford at ...17499...<mailto:chris.sandford at ...17499...>> wrote:
Hi,

Looking to run Snort to monitor authentication attempts on external facing devices.

Does anyone have an example of a rule looking at a single IP of a device for monitoring login attempts. The rule would alert for failed and successful logins if detected.

this particular rule https://www.snort.org/rule_docs/1-19559 will fire if more than 5 login attempts are made in 60 seconds, discussed also here:
http://seclists.org/snort/2014/q2/482
Marcin


In my example the login method would be to monitor SSH login attempts on an external facing device, although this is blocked by default it would be good to monitor for attempted logon requests.

Thanks,


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