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	<title>Comments on: Virus Variant Extorts You by Encrypting Your Files</title>
	<atom:link href="http://www.darknet.org.uk/2008/06/virus-variant-extorts-you-by-encrypting-your-files/feed/" rel="self" type="application/rss+xml" />
	<link>http://www.darknet.org.uk/2008/06/virus-variant-extorts-you-by-encrypting-your-files/</link>
	<description>Ethical Hacking, Penetration Testing &#38; Computer Security</description>
	<pubDate>Fri, 21 Nov 2008 04:28:38 +0000</pubDate>
	<generator>http://wordpress.org/?v=2.6.3</generator>
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		<title>By: chevalier3as</title>
		<link>http://www.darknet.org.uk/2008/06/virus-variant-extorts-you-by-encrypting-your-files/#comment-123394</link>
		<dc:creator>chevalier3as</dc:creator>
		<pubDate>Mon, 16 Jun 2008 20:43:03 +0000</pubDate>
		<guid isPermaLink="false">http://www.darknet.org.uk/?p=871#comment-123394</guid>
		<description>If the key pass is generated randomly or based on the signature of the victim, I think that focusing on the way these keys are generated is easier than decrypting a 1042 bit RSA code, noting that ( according to my last info) the American government uses a 512 bit RSA encryption!

Reverse engineering virus is not that easy either, especially if the attacker used techniques used by programming engineers to hide their code, hopefully the code would be smaller so less demanding.</description>
		<content:encoded><![CDATA[<p>If the key pass is generated randomly or based on the signature of the victim, I think that focusing on the way these keys are generated is easier than decrypting a 1042 bit RSA code, noting that ( according to my last info) the American government uses a 512 bit RSA encryption!</p>
<p>Reverse engineering virus is not that easy either, especially if the attacker used techniques used by programming engineers to hide their code, hopefully the code would be smaller so less demanding.</p>
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		<title>By: JaMeS</title>
		<link>http://www.darknet.org.uk/2008/06/virus-variant-extorts-you-by-encrypting-your-files/#comment-123392</link>
		<dc:creator>JaMeS</dc:creator>
		<pubDate>Mon, 16 Jun 2008 13:11:46 +0000</pubDate>
		<guid isPermaLink="false">http://www.darknet.org.uk/?p=871#comment-123392</guid>
		<description>:O
this is HARSH to say the least!
kudos to the guy who thought of it though! 
but yeah, i hope i never get this ...
dam dodgey porn sites!!!
:P


JaMeS
-CoD4-</description>
		<content:encoded><![CDATA[<p>:O<br />
this is HARSH to say the least!<br />
kudos to the guy who thought of it though!<br />
but yeah, i hope i never get this &#8230;<br />
dam dodgey porn sites!!!<br />
 <img src='http://www.darknet.org.uk/wp-includes/images/smilies/icon_razz.gif' alt=':P' class='wp-smiley' /> </p>
<p>JaMeS<br />
-CoD4-</p>
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		<title>By: Bogwitch</title>
		<link>http://www.darknet.org.uk/2008/06/virus-variant-extorts-you-by-encrypting-your-files/#comment-123361</link>
		<dc:creator>Bogwitch</dc:creator>
		<pubDate>Fri, 13 Jun 2008 12:26:59 +0000</pubDate>
		<guid isPermaLink="false">http://www.darknet.org.uk/?p=871#comment-123361</guid>
		<description>I was wondering how a unique key could be issued to each computer, but now I see it has a pseudo-randomly generated portion that is included in the README. That's pretty sly, but it means that, once the algorithm is properly analysed, there is only one root key to be discovered.

@Darknet,
It is my experience that most larger-than-average organisations will make suitable backups however, your home users and SMEs are far less likely to do so despite, as you say, storage being so cheap.</description>
		<content:encoded><![CDATA[<p>I was wondering how a unique key could be issued to each computer, but now I see it has a pseudo-randomly generated portion that is included in the README. That&#8217;s pretty sly, but it means that, once the algorithm is properly analysed, there is only one root key to be discovered.</p>
<p>@Darknet,<br />
It is my experience that most larger-than-average organisations will make suitable backups however, your home users and SMEs are far less likely to do so despite, as you say, storage being so cheap.</p>
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		<title>By: Navin</title>
		<link>http://www.darknet.org.uk/2008/06/virus-variant-extorts-you-by-encrypting-your-files/#comment-123351</link>
		<dc:creator>Navin</dc:creator>
		<pubDate>Thu, 12 Jun 2008 19:14:34 +0000</pubDate>
		<guid isPermaLink="false">http://www.darknet.org.uk/?p=871#comment-123351</guid>
		<description>@ pantagruel

U're right... as discussed in the kaspersky subforum, it is a unique key for each encrypted system.So if u got 2 computers infected, even if in the same network, you gotta pay 2X ransom amount. Russian teens with pimples?? I don't think so...Russian maybe..but teens who specialize in 1024-bit encryption/decryption?? they're Good......and now very rich I guess!! :)</description>
		<content:encoded><![CDATA[<p>@ pantagruel</p>
<p>U&#8217;re right&#8230; as discussed in the kaspersky subforum, it is a unique key for each encrypted system.So if u got 2 computers infected, even if in the same network, you gotta pay 2X ransom amount. Russian teens with pimples?? I don&#8217;t think so&#8230;Russian maybe..but teens who specialize in 1024-bit encryption/decryption?? they&#8217;re Good&#8230;&#8230;and now very rich I guess!! <img src='http://www.darknet.org.uk/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /></p>
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		<title>By: Pantagruel</title>
		<link>http://www.darknet.org.uk/2008/06/virus-variant-extorts-you-by-encrypting-your-files/#comment-123346</link>
		<dc:creator>Pantagruel</dc:creator>
		<pubDate>Wed, 11 Jun 2008 18:25:34 +0000</pubDate>
		<guid isPermaLink="false">http://www.darknet.org.uk/?p=871#comment-123346</guid>
		<description>LOL, easy

&lt;em&gt;*spoiler*&lt;/em&gt;

pantagruel: i’ll look into the editing option, have though about it before</description>
		<content:encoded><![CDATA[<p>LOL, easy</p>
<p><em>*spoiler*</em></p>
<p>pantagruel: i’ll look into the editing option, have though about it before</p>
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		<title>By: Darknet</title>
		<link>http://www.darknet.org.uk/2008/06/virus-variant-extorts-you-by-encrypting-your-files/#comment-123345</link>
		<dc:creator>Darknet</dc:creator>
		<pubDate>Wed, 11 Jun 2008 17:16:19 +0000</pubDate>
		<guid isPermaLink="false">http://www.darknet.org.uk/?p=871#comment-123345</guid>
		<description>&lt;strong&gt;Obtjvgpu:&lt;/strong&gt; Irel srj crbcyr unir vaperzragny naq ebyyvat qnvyl/zbaguyl/jrrxyl/vasvavgr onpxhcf - rira gubhtu fgbentr vf purnc rabhtu gb qb vg.

&lt;strong&gt;Aniva:&lt;/strong&gt; Lrf P++ pbqrf ner rapelcgrq!

&lt;strong&gt;enmgn:&lt;/strong&gt; Sebz jung V'ir urneq vg'f ol Jrfgrea Havba juvpu vf abg genprnoyr.

&lt;strong&gt;Cnagntehry:&lt;/strong&gt; V'yy ybbx vagb gur rqvgvat bcgvba, unir gubhtu nobhg vg orsber.

&lt;em&gt;Seen as though this post is about encryption my above comment is encrypted for those of you l33t enough with ultra 1024 bit cryptanalysis skills&lt;/em&gt;</description>
		<content:encoded><![CDATA[<p><strong>Obtjvgpu:</strong> Irel srj crbcyr unir vaperzragny naq ebyyvat qnvyl/zbaguyl/jrrxyl/vasvavgr onpxhcf - rira gubhtu fgbentr vf purnc rabhtu gb qb vg.</p>
<p><strong>Aniva:</strong> Lrf P++ pbqrf ner rapelcgrq!</p>
<p><strong>enmgn:</strong> Sebz jung V&#8217;ir urneq vg&#8217;f ol Jrfgrea Havba juvpu vf abg genprnoyr.</p>
<p><strong>Cnagntehry:</strong> V&#8217;yy ybbx vagb gur rqvgvat bcgvba, unir gubhtu nobhg vg orsber.</p>
<p><em>Seen as though this post is about encryption my above comment is encrypted for those of you l33t enough with ultra 1024 bit cryptanalysis skills</em></p>
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		<title>By: Pantagruel</title>
		<link>http://www.darknet.org.uk/2008/06/virus-variant-extorts-you-by-encrypting-your-files/#comment-123342</link>
		<dc:creator>Pantagruel</dc:creator>
		<pubDate>Wed, 11 Jun 2008 15:40:24 +0000</pubDate>
		<guid isPermaLink="false">http://www.darknet.org.uk/?p=871#comment-123342</guid>
		<description>@Bogwitch

LOL 3\/1L ;)

I personally think the 'what-if' of someone else's public key is pure theory. My best guess is that they will generate a fresh public key for each victim (or at least have some 100 to 500 which they will recycle) making exposure of a hand full of keys not really harm their business model. Or they will simply 'patch' their encryption for a new set of key's if too much data is published.

According to Dancho Danchev

ddanchev.blogspot.com/2008/06/whos-behind-gpcode-ransomware.html

the perp's are Russian teens with pimples.

@DarkNet, an 'Edit' option seems handy from time to time.</description>
		<content:encoded><![CDATA[<p>@Bogwitch</p>
<p>LOL 3\/1L <img src='http://www.darknet.org.uk/wp-includes/images/smilies/icon_wink.gif' alt=';)' class='wp-smiley' /> </p>
<p>I personally think the &#8216;what-if&#8217; of someone else&#8217;s public key is pure theory. My best guess is that they will generate a fresh public key for each victim (or at least have some 100 to 500 which they will recycle) making exposure of a hand full of keys not really harm their business model. Or they will simply &#8216;patch&#8217; their encryption for a new set of key&#8217;s if too much data is published.</p>
<p>According to Dancho Danchev</p>
<p>ddanchev.blogspot.com/2008/06/whos-behind-gpcode-ransomware.html</p>
<p>the perp&#8217;s are Russian teens with pimples.</p>
<p>@DarkNet, an &#8216;Edit&#8217; option seems handy from time to time.</p>
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		<title>By: Bogwitch</title>
		<link>http://www.darknet.org.uk/2008/06/virus-variant-extorts-you-by-encrypting-your-files/#comment-123340</link>
		<dc:creator>Bogwitch</dc:creator>
		<pubDate>Wed, 11 Jun 2008 12:29:40 +0000</pubDate>
		<guid isPermaLink="false">http://www.darknet.org.uk/?p=871#comment-123340</guid>
		<description>@Pantagruel,

I like the way your mind works. Truly evil.

I had not thought of the possibility of the perp using someone elses public key for encryption but that does mean that paying him for the key will result in no decryption until the key is exposed.

That said, if a victim does pay, surely the victim would publish the decrytion key themselves?</description>
		<content:encoded><![CDATA[<p>@Pantagruel,</p>
<p>I like the way your mind works. Truly evil.</p>
<p>I had not thought of the possibility of the perp using someone elses public key for encryption but that does mean that paying him for the key will result in no decryption until the key is exposed.</p>
<p>That said, if a victim does pay, surely the victim would publish the decrytion key themselves?</p>
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	<item>
		<title>By: Pantagruel</title>
		<link>http://www.darknet.org.uk/2008/06/virus-variant-extorts-you-by-encrypting-your-files/#comment-123338</link>
		<dc:creator>Pantagruel</dc:creator>
		<pubDate>Wed, 11 Jun 2008 09:55:17 +0000</pubDate>
		<guid isPermaLink="false">http://www.darknet.org.uk/?p=871#comment-123338</guid>
		<description>@Navin
Basically means getting a backup done on tamper proof media (cd/dvd/bd) pronto and be sure to keep your AV software up to date.

@razta
Several blogs/pages mention the extortion sum to be payed through an egold account. You're advised to pay (for now) but also notify the tech. dept/customers service (be it egold,paypal,whatever) so they can track/trace the transaction and will be able to hunt down the villain old style.

@the BMX guy
There have been many variant of other mans work in the field of computer virii. Have a look at some of the viral dev kits you can find/acquire, usually ancient stuf
This encryption virus is more advanced because it uses a stronger encryption than before, making a crack down too lengthy (30 year as DarkNet mentions) for any home user to perform (a nice option to speed things up might be this home made Helmer cluster helmer.sfe.se )

The Kaspersky@home routine may back fire. What if the purp doesn't have the private  key used for encryption? It might just as well be someone else's key he abuses. What if he is using a
' root signing key', 'certificate authority' of some bank. This well meant effort could amount to big trouble and substantial losses.</description>
		<content:encoded><![CDATA[<p>@Navin<br />
Basically means getting a backup done on tamper proof media (cd/dvd/bd) pronto and be sure to keep your AV software up to date.</p>
<p>@razta<br />
Several blogs/pages mention the extortion sum to be payed through an egold account. You&#8217;re advised to pay (for now) but also notify the tech. dept/customers service (be it egold,paypal,whatever) so they can track/trace the transaction and will be able to hunt down the villain old style.</p>
<p>@the BMX guy<br />
There have been many variant of other mans work in the field of computer virii. Have a look at some of the viral dev kits you can find/acquire, usually ancient stuf<br />
This encryption virus is more advanced because it uses a stronger encryption than before, making a crack down too lengthy (30 year as DarkNet mentions) for any home user to perform (a nice option to speed things up might be this home made Helmer cluster helmer.sfe.se )</p>
<p>The Kaspersky@home routine may back fire. What if the purp doesn&#8217;t have the private  key used for encryption? It might just as well be someone else&#8217;s key he abuses. What if he is using a<br />
&#8216; root signing key&#8217;, &#8216;certificate authority&#8217; of some bank. This well meant effort could amount to big trouble and substantial losses.</p>
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		<title>By: the BMX guy</title>
		<link>http://www.darknet.org.uk/2008/06/virus-variant-extorts-you-by-encrypting-your-files/#comment-123333</link>
		<dc:creator>the BMX guy</dc:creator>
		<pubDate>Tue, 10 Jun 2008 21:37:26 +0000</pubDate>
		<guid isPermaLink="false">http://www.darknet.org.uk/?p=871#comment-123333</guid>
		<description>"Holy cow!" is the only thing that comes to my mind. But if they can steal your car and sell it back to you what stops them to steal your data in the same fashion - but if it is software it can be hacked, even if it is malware. Wonder how many levels of this we'll get "hack a hacked program hack derived from a program hack"?</description>
		<content:encoded><![CDATA[<p>&#8220;Holy cow!&#8221; is the only thing that comes to my mind. But if they can steal your car and sell it back to you what stops them to steal your data in the same fashion - but if it is software it can be hacked, even if it is malware. Wonder how many levels of this we&#8217;ll get &#8220;hack a hacked program hack derived from a program hack&#8221;?</p>
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