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	<title>Static in the Ether &#187; Vizualization</title>
	<atom:link href="http://lair.moria.org/blog/archives/category/phd/vizualization/feed" rel="self" type="application/rss+xml" />
	<link>http://lair.moria.org/blog</link>
	<description>Unix, Information Security &#38; Systems Administration</description>
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		<title>Internet Attack Barometer</title>
		<link>http://lair.moria.org/blog/archives/205</link>
		<comments>http://lair.moria.org/blog/archives/205#comments</comments>
		<pubDate>Tue, 30 Jun 2009 08:16:51 +0000</pubDate>
		<dc:creator>Barry Irwin</dc:creator>
				<category><![CDATA[Security]]></category>
		<category><![CDATA[Systems Administration]]></category>
		<category><![CDATA[Vizualization]]></category>
		<category><![CDATA[Network Telescope]]></category>
		<category><![CDATA[Security Tools]]></category>

		<guid isPermaLink="false">http://lair.moria.org/blog/?p=205</guid>
		<description><![CDATA[Interoute has launched a new online Internet Barometer detailing attacks as observed from their 22 monitoring stations across the European portion of the Internet. The site provides rich graph and chart interfaces, which are nicely interactive.  There are definatley some ideas I want to incorporate form this into my own Network Telescope management console.  It [...]]]></description>
			<content:encoded><![CDATA[<p>Interoute has launched a new online <a href="http://barometer.interoute.com/barom_main.php" target="_blank">Internet Barometer</a> detailing attacks as observed from their 22 monitoring stations across the European portion of the Internet.</p>
<p>The site provides rich graph and chart interfaces, which are nicely interactive.  There are definatley some ideas I want to incorporate form this into my own Network Telescope management console.  It is however worth bearing in mind that his is a Eurocentric view and is only based on their observed traffic. As such the &#8220;<a href="http://barometer.interoute.com/barom_attack_from.php">attacking countries</a>&#8221; view seems to be a bit skewed.</p>
<div id="attachment_206" class="wp-caption aligncenter" style="width: 310px"><a href="http://lair.moria.org/blog/wp-content/uploads/2009/06/map5.jpeg" rel="lightbox"><img class="size-medium wp-image-206" title="world_map" src="http://lair.moria.org/blog/wp-content/uploads/2009/06/map5-300x191.jpg" alt="Interoute World view 2009-06-30" width="300" height="191" /></a><p class="wp-caption-text">Interoute World view 2009-06-30</p></div>
<p>After digging around with squid and wireshark, its evident that a lot of the data is actually served up as XML files, and as such can potentially be postprocessed. The Adobe AIR <a href="http://barometer.interoute.com/widget">Barometer Widget</a> they provide also makes use of these. One issue I had getting this installed is you need Air 1.5.1, and the 1.0.8 version I had wouldn&#8217;t auto upgrade correctly.  A little disappointing in that I was expecting a map view, it provides the basics of a total count and cycles through various country stats.</p>
<div id="attachment_207" class="wp-caption aligncenter" style="width: 278px"><a href="http://lair.moria.org/blog/wp-content/uploads/2009/06/widget1.PNG"  rel="lightbox"><img class="size-full wp-image-207" title="Widget Sample" src="http://lair.moria.org/blog/wp-content/uploads/2009/06/widget1.PNG" alt="Interroute Barometer Widget" width="268" height="182" /></a><p class="wp-caption-text">Interoute Barometer Widget</p></div>
<p>Where the real value  comes form is having another independent source of reporting ( even at the highly granular level) that can be used to correlate observations with my own data sets, and those available form places like dShield and ISC. Maybe I should dust off my old Infocon alert plugin for Firefox and integrate some of this data.</p>
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		</item>
		<item>
		<title>New Infosec Viz Tool &#8211; Picviz</title>
		<link>http://lair.moria.org/blog/archives/137</link>
		<comments>http://lair.moria.org/blog/archives/137#comments</comments>
		<pubDate>Fri, 24 Oct 2008 06:48:46 +0000</pubDate>
		<dc:creator>Barry Irwin</dc:creator>
				<category><![CDATA[Security]]></category>
		<category><![CDATA[Vizualization]]></category>
		<category><![CDATA[tools]]></category>
		<category><![CDATA[Networking]]></category>
		<category><![CDATA[PicVis]]></category>
		<category><![CDATA[SSH]]></category>
		<category><![CDATA[VizSec]]></category>

		<guid isPermaLink="false">http://lair.moria.org/blog/?p=137</guid>
		<description><![CDATA[Version 0.3 of PicViz has been released, based on python and QT &#8211; which bodes well for potential portability. This is yet another tool to help one actually filter through piles of connections, using a classic parallel axis setup.  Drilldown is offered. Some example renderings of  the Kaminsky DNS attacks are available. A more advanced [...]]]></description>
			<content:encoded><![CDATA[<p>Version 0.3 of <a href="http://www.wallinfire.net/picviz">PicViz </a>has been released, based on python and QT &#8211; which bodes well for potential portability. This is yet another tool to help one actually filter through piles of connections, using a classic parallel axis setup.  Drilldown is offered. Some example renderings of  the Kaminsky DNS attacks are <a href="http://www.wallinfire.net/picviz/wiki/GeneratedBindKaminsky">available</a>.</p>
<p>A more advanced version of the kind of output achievable is also provided showing how with the help of a pre-processing script, the <a href="http://www.wallinfire.net/picviz/wiki/SshCatchMe">SSH login proces</a>s can be graphed:</p>
<p><a href="http://www.wallinfire.net/picviz/attachment/wiki/SshCatchMe/auth.png?format=raw"><img class="aligncenter" title="SSH login process in PicViz" src="http://www.wallinfire.net/picviz/attachment/wiki/SshCatchMe/auth.png?format=raw" alt="" width="250" height="250" /></a></p>
<p>Graphs are produced via an intermediate scripting language which has by design strong similarity to that used by <a href="http://www.graphviz.org/">Graphviz.</a>  I&#8217;ll definatley be adding this to my toolset and seeing how it handles processing of some of the rather large data sets Ive got.</p>
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		<item>
		<title>Applied Security Visualization released</title>
		<link>http://lair.moria.org/blog/archives/106</link>
		<comments>http://lair.moria.org/blog/archives/106#comments</comments>
		<pubDate>Thu, 21 Aug 2008 06:54:44 +0000</pubDate>
		<dc:creator>Barry Irwin</dc:creator>
				<category><![CDATA[Applications]]></category>
		<category><![CDATA[Books]]></category>
		<category><![CDATA[Security]]></category>
		<category><![CDATA[Vizualization]]></category>
		<category><![CDATA[InetVis]]></category>
		<category><![CDATA[Security Tools]]></category>
		<category><![CDATA[VizSec]]></category>

		<guid isPermaLink="false">http://lair.moria.org/blog/?p=106</guid>
		<description><![CDATA[I probably should have posted this a while back but, its still worth noting that Raffael Marty&#8217;s Applied Security Visualization has been released, and includes a copy of the DAVIX CD as distributed at Defcon 16 (davix-1.0.1-defcon16.iso.gz &#8211; also obtainable from the homepage, includes a couple of packet traces as used in the Defcon workshop) [...]]]></description>
			<content:encoded><![CDATA[<p>I probably should have posted this a while back but, its still worth noting that Raffael Marty&#8217;s <a href="http://www.amazon.com/gp/product/0321510100?ie=UTF8&amp;tag=balinslairl-20&amp;linkCode=as2&amp;camp=1789&amp;creative=9325&amp;creativeASIN=0321510100"> Applied Security Visualization</a><a title="Applied Security Visualization" rel="lightbox" href="http://ecx.images-amazon.com/images/I/41nOfn0xjtL._LS500_.jpg"><img class="alignleft" style="float: left;" src="http://ecx.images-amazon.com/images/I/41nOfn0xjtL._SL160_.jpg" alt="Applied Security Vizualisation" width="121" height="160" /></a> has been released, and includes a copy of the <a href="http://davix.secviz.org/">DAVIX</a> CD as distributed at Defcon 16 (davix-1.0.1-defcon16.iso.gz &#8211; also obtainable from the homepage, includes a couple of packet traces as used in the Defcon workshop) , which includes a copy of <a title="InetVis - 3d security analysis" href="http://vizsec.org/applications/inetvis/">InetVis</a> as one of their four chosen visual  analysis tools on the live CD.</p>
<p>For the impatient some i<a href="http://82.197.185.121/davix/release/davix-manual-1.0.1.pdf">nstructions</a> are available for getting started. Now to work out what else to order form amazon so that the 40USD specail shipment fee hurts a little less ( thanks to our totally <a href="http://www.thetimes.co.za/Business/BusinessTimes/Article.aspx?id=786567">criminal and incompetent post office in South Africa</a>)</p>
<p>Failing that its time to wait till the local places get round to stocking it.</p>
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		<item>
		<title>VizSec 2007 proceedings out</title>
		<link>http://lair.moria.org/blog/archives/54</link>
		<comments>http://lair.moria.org/blog/archives/54#comments</comments>
		<pubDate>Mon, 16 Jun 2008 06:16:18 +0000</pubDate>
		<dc:creator>Barry Irwin</dc:creator>
				<category><![CDATA[Books]]></category>
		<category><![CDATA[PhD]]></category>
		<category><![CDATA[Security]]></category>
		<category><![CDATA[Vizualization]]></category>
		<category><![CDATA[Hilbert Curve]]></category>
		<category><![CDATA[InetVis]]></category>
		<category><![CDATA[Visualization]]></category>
		<category><![CDATA[VizSec]]></category>

		<guid isPermaLink="false">http://lair.moria.org/blog/?p=54</guid>
		<description><![CDATA[The Proceedings of the 2007 Workshop on Visualization for Computer Security (VizSec 2007) are finally available. Springer Has the book available for order at a princely 60 Euros. Amazon has the book listed but not yet available for shipping , but one can pre-order. For those interested, Springer has a flyer and table of contents [...]]]></description>
			<content:encoded><![CDATA[<p><a rel="lightbox" href="http://ecx.images-amazon.com/images/I/51omrq2hDqL._L160_.jpg"><img style="border: 0pt none; " src="http://ecx.images-amazon.com/images/I/51omrq2hDqL._SL160_.jpg" alt="" width="106" height="160" align="left" hspace="10" /></a>The Proceedings of the 2007 Workshop on Visualization for Computer Security (VizSec 2007) are finally available. Springer Has the<a title="Proceedings of the 2007 Workshop on Visualization for Computer Security (VizSec 2007) " href="http://www.springer.com/computer/computer+imaging/book/978-3-540-78242-1" target="_blank"> book available for order</a> at a princely 60 Euros.  Amazon has the <a title="Proceedings of the 2007 Workshop on Visualization for Computer Security (VizSec 2007) " href="http://www.amazon.com/exec/obidos/ASIN/3540782427/ref=nosim/balinslair-20"> book listed </a>but not yet available for shipping , but one can pre-order. For those interested, Springer has a <a href="http://www.springer.com/productFlyer_978-3-540-78242-1.pdf?SGWID=0-0-1297-173816215-0">flyer</a> and <a href="http://www.springer.com/computer/computer+imaging/book/978-3-540-78242-1?detailsPage=toc">table of contents</a> available.  PDF versions of the presentations given are available form the <a title="VizSec 2007 Presentations" href="http://vizsec.org/workshop2007/presentations.html">VizSec 2007 website</a>.</p>
<p>My copy should hopefully be arriving in the next few weeks, but I&#8217;m looking forward to the Work done by <a title="John R Goodall" href="http://vizsec.org/johng">John R Goodall</a>,  <a title="Gregory Conti" href="http://www.rumint.org/gregconti/">Gregory Conti</a> and  <a title="Kwan-Liu Ma" href="http://www.cs.ucdavis.edu/~ma/">Kwan-Liu Ma</a> as editors. I&#8217;m just sorry I&#8217;m not going to make <a title="2008 VizSec Workshop" href="http://vizsec.org/workshop2008">VizSec 2008</a> this year.</p>
<p>The two papers that  I  presented are (links to the PDF slides):</p>
<ul>
<li><a href="http://vizsec.org/workshop2007/presentations/irwin-hilbert.pdf"><em>High level Internet Scale traffic visualization using Hilbert curve mapping</em></a> &#8211; Barry Irwin and Nick Pilkington. This details the initial work we did using the <a title="Hilbert Curve Analysis tool for IP networks" href="http://nick.rucus.net/hilbert">Hilbert Curve Analysis tool for IP networks</a></li>
<li><a href="http://vizsec.org/workshop2007/presentations/irwin-inetvis.pdf"><em>Using InetVis to evaluate Snort and Bro scan detection on a network telescope</em></a> &#8211; Barry Irwin and Jean-Pierre van Riel. <a href="http://www.cs.ru.ac.za/research/g02v2468/inetvis.html">InetVis</a> is the result of three years of JP&#8217;s work to build a scalable 3-D vizualisation tool for network traffic — primarily that collected by network telescopes.</li>
</ul>
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		<item>
		<title>DAVIX live CD looking for Beta Testers</title>
		<link>http://lair.moria.org/blog/archives/55</link>
		<comments>http://lair.moria.org/blog/archives/55#comments</comments>
		<pubDate>Sun, 15 Jun 2008 19:34:14 +0000</pubDate>
		<dc:creator>Barry Irwin</dc:creator>
				<category><![CDATA[Applications]]></category>
		<category><![CDATA[Security]]></category>
		<category><![CDATA[Vizualization]]></category>
		<category><![CDATA[Books]]></category>
		<category><![CDATA[InetVis]]></category>
		<category><![CDATA[Security Tools]]></category>

		<guid isPermaLink="false">http://lair.moria.org/blog/?p=55</guid>
		<description><![CDATA[DAVIX is the upcoming live CD for data analysis and visualization, which will be released at Blackhat/DEFCON in Las Vegas this summer, with another talk at VizSec 2008. From the VizSec.org announcement: Jan Monsch and Raffael Marty and have prepared the second beta version of DAVIX. And are now seeking for beta testers that have [...]]]></description>
			<content:encoded><![CDATA[<p><span class="link-external"><a href="http://davix.secviz.org/">DAVIX</a></span> is the upcoming live CD for data analysis and visualization, which will be released at Blackhat/DEFCON in Las Vegas this summer, with another talk at <a href="http://vizsec.org/workshop2008">VizSec 2008</a>. From the VizSec.org <a href="http://vizsec.org/news/call-for-davix-beta-testers/">announcement</a>:</p>
<blockquote><p><a title="Applied Security Visualization" rel="lightbox" href="http://ecx.images-amazon.com/images/I/41nOfn0xjtL._LS500_.jpg"><img class="alignleft" style="float: left;" src="http://ecx.images-amazon.com/images/I/41nOfn0xjtL._SL160_.jpg" alt="Applied Security Vizualisation" width="121" height="160" /></a>Jan Monsch and Raffael Marty and have prepared the second beta version of DAVIX. And  are now seeking for beta testers that have the time to test DAVIX and answer the questionnaire that comes along with the beta version. All completely filled out questionnaires received by me until Monday 23 June 2008 18:00 UTC will enter a raffle for one autographed copy of Raffy&#8217;s upcoming book <span class="link-external"><a href="http://www.amazon.com/gp/product/0321510100?ie=UTF8&amp;tag=balinslairl-20&amp;linkCode=as2&amp;camp=1789&amp;creative=9325&amp;creativeASIN=0321510100"> &#8220;Applied Security Visualization&#8221;</a></span>.</p>
<p>If you want to participate in the beta test please contact: jan.monsch ät iplosion.com</p></blockquote>
<p>What makes me quite happy is that they have included <a title="InetVis - 3d security analysis" href="http://vizsec.org/applications/inetvis/">InetVis</a> as one of their four chosen visual  analysis tools on the live CD.</p>
<p>I&#8217;ve been paying with this since this morning and so far so good.</p>
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		<item>
		<title>Visualizing Viruses</title>
		<link>http://lair.moria.org/blog/archives/51</link>
		<comments>http://lair.moria.org/blog/archives/51#comments</comments>
		<pubDate>Thu, 12 Jun 2008 06:45:03 +0000</pubDate>
		<dc:creator>Barry Irwin</dc:creator>
				<category><![CDATA[Security]]></category>
		<category><![CDATA[Vizualization]]></category>
		<category><![CDATA[Malware]]></category>
		<category><![CDATA[viruses]]></category>

		<guid isPermaLink="false">http://lair.moria.org/blog/?p=51</guid>
		<description><![CDATA[Wired has a article on the Artwork done by MIT Media Lab&#8217;s grad student Alex Dragulescu. Working under contract to MessageLabs he has produced a number number of pictures, showing images of Mydoom, Ghost Keylogger and other bits of Malware. While all quite pretty there seems to be no detail of how they were created [...]]]></description>
			<content:encoded><![CDATA[<p>Wired has a article on the Artwork done by MIT Media Lab&#8217;s grad student <a title="Alex Dragulescu Homepage" href="http://www.sq.ro/">Alex Dragulescu</a>. Working under contract to  MessageLabs he has produced a number  number of <a href="http://www.wired.com/politics/security/multimedia/2008/04/gallery_viruses">pictures</a>,  showing images of Mydoom, Ghost Keylogger and other bits of Malware.<br />
While all quite pretty there seems to be no detail of how they were created in the original post although the <a href="http://www.sq.ro/malwarez.php">MalWarez</a> link on his homepage describes the process as follows:</p>
<blockquote><p>..For each piece of disassembled code, API calls, memory addresses and subroutines are tracked and analyzed. Their frequency, density and grouping are mapped to the inputs of an algorithm that grows a virtual 3D entity.</p></blockquote>
<p>The <a title="Storm Worm Vizualisation" href="http://www.sq.ro/viewer.php?i=125">Storm Worm</a> is probably my favorite visualizations. He also has an interesting set of images entitled <a href="http://www.sq.ro/spamplants.php">SpamPlants</a>, based on input relating to the ASCII character frequency of spam messages.</p>
<p>Now this sounds like a great project for an aspiring security researcher with a graphical bent.</p>
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		<item>
		<title>New Hilbert Release</title>
		<link>http://lair.moria.org/blog/archives/37</link>
		<comments>http://lair.moria.org/blog/archives/37#comments</comments>
		<pubDate>Wed, 04 Jun 2008 07:13:05 +0000</pubDate>
		<dc:creator>Barry Irwin</dc:creator>
				<category><![CDATA[Linux]]></category>
		<category><![CDATA[Networking]]></category>
		<category><![CDATA[Security]]></category>
		<category><![CDATA[Vizualization]]></category>
		<category><![CDATA[ASN]]></category>
		<category><![CDATA[Hilbert Curve]]></category>
		<category><![CDATA[Internet]]></category>
		<category><![CDATA[Network Telescope]]></category>

		<guid isPermaLink="false">http://lair.moria.org/blog/?p=37</guid>
		<description><![CDATA[With Nick now in Grahamstown, development on the Hilbert Curve application has progressed well. Version 4.05 has been released around a month after the 2.05 edition previously mentioned, which is heading much closer towards completion. The unix build scripts still need to be integrated, but there has been much improvement. The most noticeable improvements are [...]]]></description>
			<content:encoded><![CDATA[<p>With <a href="http://nick.rucus.net/">Nick</a> now in Grahamstown, development on the Hilbert Curve application has progressed well.  <a href="http://nick.rucus.net/hilbert/">Version 4.05</a> has been released around a month after the 2.05 edition <a href="http://lair.moria.org/blog/archives/11">previously mentioned,</a> which is heading much closer towards completion.  The unix build scripts still need to be integrated, but there has been much improvement.  The most noticeable improvements are in the processing speed new around 90 seconds for a datafile of 53 million Addresses, and its ability to put out some very high res images (4096&#215;4096) when working with higher order curves.  At this resolution we are able to present a single pixel as representing a class C network or in effect 256 individual IP addresses.  The updated release also allows for the application of image overlays when in interactive mode, which can make navigation significantly easier.</p>
<p>A sample of the kind of output is seen below (<a href='http://lair.moria.org/blog/wp-content/uploads/2008/06/asn2008_cache2lg.png'><acronym title="4096x4096 - 990KB">full resolution</acronym> image is <strong>990K</strong></a>) which shows destination IP addresses harvested from the Albany Schools Cache server during January through May 2008:<br/><br />
<a href='http://lair.moria.org/blog/wp-content/uploads/2008/06/asn2008_cache2sm.png' title="ASN Cache Traffic Jan - May 2008"  rel="lightbox"><img src="http://lair.moria.org/blog/wp-content/uploads/2008/06/asn2008_cache2sm.png" alt="" title="ASN Cache Traffic Jan - May 2008" width="297" height="300" class="aligncenter size-medium wp-image-41" /></a><br />
A plot of 53 million packets from the CAIDA telescope project &#8211; 27 Feb 2007 midnight to 6am:<br />
<br/><br />
<a href='http://lair.moria.org/blog/wp-content/uploads/2008/06/caida07-full2_sm.png' title="53 million packets from the CAIDA telescope project - 27 Feb 2007 midnight to 6am" rel="lightbox"><img src="http://lair.moria.org/blog/wp-content/uploads/2008/06/caida07-full2_sm.png" alt="" title="53 million packets from the CAIDA telescope project - 27 Feb 2007 midnight to 6am" width="296" height="300" class="aligncenter size-medium wp-image-43" /></a><br />
<br/><br />
With these higher resolution images available, analysis can be performed at a much finer grained level.</p>
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		<item>
		<title>Hilbert Curve TNG &#8211; Unix port</title>
		<link>http://lair.moria.org/blog/archives/11</link>
		<comments>http://lair.moria.org/blog/archives/11#comments</comments>
		<pubDate>Sun, 20 Apr 2008 10:41:13 +0000</pubDate>
		<dc:creator>Barry Irwin</dc:creator>
				<category><![CDATA[Unix]]></category>
		<category><![CDATA[Vizualization]]></category>
		<category><![CDATA[Hilbert Curve]]></category>

		<guid isPermaLink="false">http://lair.moria.org/blog/?p=11</guid>
		<description><![CDATA[The Hilbert Curve Rework project is progressing well with version 2.05 having been released, by Nick earlier this week. Ive now taken the opportunity to port the current Windows code across to unix and particularly FreeBSD. Around 10 lines worth of changes later the app built and ran on my FreeBSD 7.0 system. For once [...]]]></description>
			<content:encoded><![CDATA[<p>The <a href="http://nick.rucus.net/hilbert/">Hilbert Curve Rework project</a> is progressing well with <a href="http://nick.rucus.net/hilbert/hilbert205.zip">version 2.05</a> having been released, by Nick earlier this week.  Ive now taken the opportunity to port the current Windows code across to unix and particularly FreeBSD. Around 10 lines worth of changes later the app built and ran on my FreeBSD 7.0 system. For once the mantra of the C/C++ work actually proved try &#8211; write once, run anywhere.  I really wish Java was that simple.</p>
<p>A couple of issues still need to be addressed:</p>
<ul>
<li>Rework the source to we can maintain a single source three for Windows and Unix targets- this is mostly slog rather than thinking work.</li>
<li>There is a bug in that some images are coming out a little wrong, but I think this may have to do with line termination issues the good old <tt>\r\n</tt> <em>vs.</em> <tt>\n</tt> issue again.</li>
<li>Write some decent docs!</li>
</ul>
<p>With a bit of luck <a title="Nicholas Pilkington" href="http://nick.rucus.net/">Nick</a> should be returning to Grahamstown for a month or so thanks to some funding from the<a href="http://www.coe.ru.ac.za/"> Center of Excellence</a> in the department. Working on the Hilbert project will be one of his main priorities.</p>
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		<title>Internet Redlight districts</title>
		<link>http://lair.moria.org/blog/archives/5</link>
		<comments>http://lair.moria.org/blog/archives/5#comments</comments>
		<pubDate>Tue, 08 Apr 2008 10:54:17 +0000</pubDate>
		<dc:creator>Barry Irwin</dc:creator>
				<category><![CDATA[PhD]]></category>
		<category><![CDATA[Vizualization]]></category>
		<category><![CDATA[Hilbert Curve]]></category>
		<category><![CDATA[Networking]]></category>

		<guid isPermaLink="false">http://lair.moria.org/blog/?p=5</guid>
		<description><![CDATA[Taking some data gathered form various filters I&#8217;m investigating for the local schools network,a nd combining with some custom scraping tools which Blake has been assisting with Ive drawn a map of the location of some 15 000 IP addresses representing the seedy side of the Internet. The image is rendered using the Hilbert Curve [...]]]></description>
			<content:encoded><![CDATA[<p>Taking some data gathered form various filters I&#8217;m investigating for the local schools network,a nd combining with some custom scraping tools which <a title="Blake Friedman" href="http://www.cs.ru.ac.za/research/g04f3129/" target="_blank">Blake</a> has been assisting with  Ive drawn a map of the location of some 15 000 IP addresses representing the <a title="The internet is for porn..." href="http://www.google.co.za/url?sa=t&amp;ct=res&amp;cd=1&amp;url=http%3A%2F%2Fvideo.google.com%2Fvideoplay%3Fdocid%3D5430343841227974645&amp;ei=aEz7R7a4OKKkgQKS9MUI&amp;usg=AFQjCNG2fdCOjo9WLsJEHyxwZmcX9CYZRQ&amp;sig2=pKdYI_yct073IZoKCFZkCw" target="_blank">seedy side of the Internet</a>.</p>
<p><a href="http://lair.moria.org/blog/wp-content/uploads/2008/04/11026_pron_sites3.png" rel="lightbox" title="Hilbert Curve plot of 11026 top porn sites"><img class="aligncenter size-medium wp-image-9" title="11026_pron_sites3" src="http://lair.moria.org/blog/wp-content/uploads/2008/04/11026_pron_sites3.png" alt="Hilbert Plot of a pile of porn sites" width="300" height="300" /></a></p>
<p>The image is rendered using the <a title="Hilbert Curve" href="http://nick.rucus.net/hilbert/">Hilbert Curve Program</a> developed in conjunction with <a href="http://nick.rucus.net/">Nick Pilkington</a>, as a project for <a title="Vizualisation Security Workshop" href="http://www.vizsec.org/">VizSec 2007</a> last year.</p>
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