full-disclosure - Re: how to detect DDoS attack through HTTP response analysis(throuput)

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Message-ID: <72C75900-F1D7-4781-B519-8F5174982FEE@arbor.net>
Date: Mon, 27 Jun 2011 03:08:19 +0000
From: "Dobbins, Roland" <rdobbins@...or.net>
To: Full Disclosure <full-disclosure@...ts.grok.org.uk>
Cc: "pen-test@...urityfocus.com" <pen-test@...urityfocus.com>
Subject: Re: how to detect DDoS attack through HTTP
 response	analysis(throuput)

On Jun 27, 2011, at 9:30 AM, 김무성 wrote:

> if there are many "408 request timeout" responses, we can think this is slowloris or RUDY DDoS attack.

Many things can cause this - not just DDoS.  In fact, I've rarely seen a DDoS resulting in these responses, because in an effective DDoS, one often doesn't get any response at all.

;>

-----------------------------------------------------------------------
Roland Dobbins <rdobbins@...or.net> // <http://www.arbornetworks.com>

		The basis of optimism is sheer terror.

			  -- Oscar Wilde

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