full-disclosure - Re: lots of connections to 64.40.117.19 port 80

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Message-Id: <20080418150126.8420C1A0039@mailserver8.hushmail.com>
Date: Fri, 18 Apr 2008 11:01:26 -0400
From: "Joey Mengele" <joey.mengele@...hmail.com>
To: joey.mengele@...hmail.com, ganbold@...om.mng.net, news@...donald.net
Cc: full-disclosure@...ts.grok.org.uk
Subject: Re: lots of connections to 64.40.117.19 port 80

News,

I believe you are missing something. XSS is merely a type of 
vulnerability. It is very common for an XSS payload to include a 
DDoS component. If you had done your research before retorting you 
would have known this.

J

On Fri, 18 Apr 2008 10:25:38 -0400 news@...donald.net wrote:
>Joey,
>
>a text book case? Prehaps im missing something, but see nothing in
>Genbolds email which makes me consider XSS. XSS is often a small 
>amount of
>traffic, with HTML and javascript in post request content or get 
>request
>query strings.
>
>Ganbold,
>
>In my opinion, it's more likely it's one of the following
>
>* brute force or dictionary attack on a login form, prehaps using 
>a botnet
>to mask the actual attacker
>* DDOS, again prehaps from a botnet
>* DOS, prehaps creating half open connects using a random spoofed 
>source 
>addresses (try and check to see if the addresses are random, or 
>come for a
>fixed set of IPs).
>* Someone looking for hidden files and directories
>* An automated script scraping the website for dynamic or a large 
>amount
>of content, or some other tool which is malfunctioning
>* The website is just really popular and your client needs to 
>upgrade
>their kit
>
>Attempt to find out what kind of requests (if any) are being sent 
>to the
>server, prehaps using a tool like wireshark, and that should tell 
>you a
>little about what is going on.
>
>Best,
>
>Renski
>
>> Ganbold,
>>
>> This sounds like a textbook case of Cross Site Scripting (XSS).
>> Consider filtering user output more carefully.
>>
>> J
>>
>> On Fri, 18 Apr 2008 03:54:24 -0400 Ganbold 
><ganbold@...om.mng.net>
>> wrote:
>>>Hi,
>>>
>>>Recently I have seen a lots of connections to 64.40.117.19 port 
>80
>>>in
>>>one of our clients network.
>>>Connections are coming from all over the Internet (various
>>>different
>>>IPs) specifically to this IP.
>>>Due to this problem (I guess it is DDoS) one of our router's CPU
>>>usage
>>>grew up to 100% and stopped a service
>>>for a while.
>>>What kind of problem this could be?
>>>Has anybody seen this kind of attack before?
>>>I appreciate if somebody can enlighten me in this regard.
>>>
>>>thanks in advance,
>>>
>>>Ganbold
>>>
>>>--
>>>The more control, the more that requires control.
>>>
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