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Re: What is this attack trying to do?

Message-ID <15207571.pMAdyhkN1m@PointedEars.de> (permalink)
From Thomas 'PointedEars' Lahn <PointedEars@web.de>
Organization PointedEars Software (PES)
Date 2012-05-24 13:34 +0200
Subject Re: What is this attack trying to do?
Newsgroups comp.lang.php
References <jpk622$fas$1@news.albasani.net> <Yt2dnbOpA4J8NyDSnZ2dnUVZ_judnZ2d@posted.localnet>
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Robert Heller wrote:

> The Natural Philosopher wrote:
>> GET
>> 
mycode.php?param=-24+UNION+SELECT+0x6d6567613164756d706572,0x6d6567613264756d706572,0x6d6567613364756d706572,0x6d6567613464756d706572,0x6d6567613564756d706572,0x6d6567613664756d706572,0x6d6567613764756d706572,0x6d6567613864756d706572,0x6d6567613964756d706572,0x6d65676131064756d706572
>> 
>> ???
>> 
>> It doesn't do any damage but a botnet has been spraying a site with this.
> 
> There is probably some websoftware out there with a mycode.php with some
> sort of security hole and the botnet is poking at every web host it can
> find looking for a hole to crawl in.  Botnets are not always smart and
> sometimes just use 'mindless' brute force and keep pounding until
> something gives...

The security hole here probably includes a vulnerability to an SQL
injection attack, as the "UNION SELECT" produced from this query part by 
urldecode()d would suggest.  A lot of information about this attack can be 
found via Google, for example when using "0x6d6567613164756d706572" as 
keyword.

<http://php.net/urldecode>


PointedEars
-- 
> If you get a bunch of authors […] that state the same "best practices"
> in any programming language, then you can bet who is wrong or right...
Not with javascript. Nonsense propagates like wildfire in this field.
  -- Richard Cornford, comp.lang.javascript, 2011-11-14

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Thread

What is this attack trying to do? The Natural Philosopher <tnp@invalid.invalid> - 2012-05-24 03:22 +0100
  Re: What is this attack trying to do? Robert Heller <heller@deepsoft.com> - 2012-05-23 22:28 -0500
    Re: What is this attack trying to do? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2012-05-24 13:34 +0200
    Re: What is this attack trying to do? Denis McMahon <denismfmcmahon@gmail.com> - 2012-05-24 14:40 +0000
      Re: What is this attack trying to do? The Natural Philosopher <tnp@invalid.invalid> - 2012-05-24 22:50 +0100
        Re: What is this attack trying to do? Captain Paralytic <paul_lautman@yahoo.com> - 2012-05-30 04:46 -0700
          Re: What is this attack trying to do? The Natural Philosopher <tnp@invalid.invalid> - 2012-05-30 13:20 +0100
            Re: What is this attack trying to do? Robert Heller <heller@deepsoft.com> - 2012-05-30 09:06 -0500
              Re: What is this attack trying to do? The Natural Philosopher <tnp@invalid.invalid> - 2012-05-30 15:28 +0100
                Re: What is this attack trying to do? Robert Heller <heller@deepsoft.com> - 2012-05-30 12:30 -0500
                Re: What is this attack trying to do? The Natural Philosopher <tnp@invalid.invalid> - 2012-05-30 22:27 +0100

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