28.3.09

[ghosts in the machines]


Tracking GhostNet: Investigating a Cyber Espionage Network.

The report has now been covered in an exclusive story by the New York
Times' John Markoff. Download the New York Times story here http://www.nytimes.com/2009/03/29/technology/29spy.html

Researchers at the Information Warfare Monitor uncovered a suspected
cyber espionage network of over 1,295 infected hosts in 103 countries. This finding comes at the close of a 10-month investigation of alleged Chinese cyber spying against Tibetan institutions that consisted of fieldwork, technical scouting, and laboratory analysis.

Close to 30% of the infected hosts are considered high-value and
include computers located at ministries of foreign affairs, embassies, international organizations, news media, and NGOs. The investigation was able to conclude that Tibetan computer systems were compromised by multiple infections that gave attackers unprecedented access to potentially sensitive information, including documents from the private office of the Dalai Lama.

Who is ultimately in control of the GhostNet system? While our
analysis reveals that numerous politically sensitive and high value computer systems were compromised in ways that circumstantially point to China as the culprit, we do not know the exact motivation or the identity of the attacker(s), or how to accurately characterize this network of infections as a whole. One of the characteristics of cyber- attacks of the sort we document here is the ease by which attribution can be obscured.

Regardless of who or what is ultimately in control of GhostNet, it is
the capabilities of exploitation, and the strategic intelligence that can be harvested from it, which matters most. Indeed, although the Achilles' heel of the GhostNet system allowed us to monitor and document its far-reaching network of infiltration, we can safely hypothesize that it is neither the first nor the only one of its kind.

As Information Warfare Monitor principal investigators Ron Deibert and
Rafal Rohozinski say in the foreword to the report, "This report serves as a wake-up call. At the very least, a large percentage of high-value targets compromised by this network demonstrate the relative ease with which a technically unsophisticated approach can quickly be harnessed to create a very effective spynet.These are major disruptive capabilities that the professional information security community, as well as policymakers, need to come to terms with rapidly."

Download the full report on 29 March 2009 at
http://www.infowar-monitor.net/ghostnet/




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15.10.07

[nothing like a virus in the morning]


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5.10.07

[i was hacked: part deux]

S l o w l y as I come to grips with the whole *thing* I'm patting myself on the shoulder for taking screen shots (including of the source code) of the hacker communicating with me (before he crashed it). As soon as I figured out what was going on I thought I'd google to see if anyone had published information on dealing with this kind of a hack. As I googled the thief spoke...








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2.10.07

[i was hacked]

I say "I" and not "the computer" because the hack happened in real time and the hacker actually communicated with me as it was happening. I'm still trying to salvage my hard drive which he (I say he though of course I can't know for sure) wiped and then proceeded to rewrite...but more on that later (when I've had time to calm down and hopefully save some work...my whole thesis was there...).

Anyway...I've been trying to figure out how it happened. I don't click on links in spam e-mails (even legit-looking spoofed ones). I have anti-virus software running (a good one), I have anti-spyware apps running (good ones) and it still happened....I wonder if this latest threat to google was related (though I didn't follow any links to .cn sites).

"It appears that a spammer has found out how to infiltrate the Google index without being caught. Here's what is happening in a nutshell:

* Some searches (very specific phrases, and I won't list any of them right now - Google knows which they are) return results with a large number of .cn (Chinese) sites.
* The .cn sites are often scraped content from legitimate U.S. websites
* The legitimate sites are being ranked below the scammed .cn sites for these competitive keywords.
* When a user clicks on one of the .cn sites returned in the result set, the user is redirected to an entirely different page which attempts to install one or more pieces of malware on the user's computer. If the user is not protected, they become infected - I don't know the specifics of the infection as I AM well protected
* The .cn sites don't appear to be hosted ANYWHERE. They are simply redirected domain names. How they got ranked in Google in such a short period of time for fairly competitive keywords is a mystery. Google's index even shows legitimate content for the .cn sites.
* It appears that the faked sites are redirecting the Googlebot to a location where content can be indexed, while at the same time recognizing normal users and redirecting them to a site that includes the malware mentioned earlier. This is an obvious violation of Google's guidelines, but the spammers have found ways to circumvent the rule and hide it from the Googlebot.
* These sites are numbering in the millions for many different keywords and phrases, and appear to be developed on an automated basis. Because of privacy laws, it's hard to track down who owns the domain names - Google has the power to do so, but there has been about exactly zero information from Google about the problem so far, and even many SEO experts and webmasters are not picking up on it.

What Does This Actually Mean?
So what does all this mean? One, don't click on a .cn domain name returned from Google.com. If you need to search for a Chinese site, use Google.cn instead of Google.com. Second is to watch your own SERPs and see if you are suddenly dropping below sites with a .cn TLD. If you find that happening, report it here. Third, don't panic - Google is remaining mum on this for a number of reasons. Were the public to stop trusting Google it could cause major upheavals in the search engine business - if the problem was just spam, the public wouldn't even notice. However, since malware is involved, this is something that could hit the major media with a giant bang and cause a panic. That could affect traffic to some sites in a major way - especially those specifically optimized for the Google search engine.

A Major Infrastructure Problem?
If a smart spammer has really found a way to game the Google search results with spoofed or cloaked sites, and Google still doesn't have a fix, this could be a major issue with the underlying infrastructure of the entire Google operation. I've seen hints that a significant infrastructure change is taking place; is this spam issue the reason? Could that mean that Google was actually hacked instead of someone spamming the index? If so, webmasters may be waiting a long time for the expected Pagerank update while Google fixes the leaks.

Time to Worry?
This is the first time that I've ever been worried that Google's own index has been hacked. The obvious and blatant circumvention of a guideline normally picked up by the Googlebot quickly is worrisome. A normal website pulling this would be banned almost instantly. The fact that none of the sites have real content and don't appear to even be hosted anywhere is even more scary. How did millions of sites get indexed if they don't exist?"


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13.5.07

[Google searches web's dark side]

One in 10 web pages scrutinised by search giant Google contained malicious code that could infect a user's PC.


Men looking at a laptop
Researchers from the firm surveyed billions of sites, subjecting 4.5 million pages to "in-depth analysis".

About 450,000 were capable of launching so-called "drive-by downloads", sites that install malicious code, such as spyware, without a user's knowledge.

A further 700,000 pages were thought to contain code that could compromise a user's computer, the team report.

To address the problem, the researchers say the company has "started an effort to identify all web pages on the internet that could be malicious".

Phantom sites

Drive-by downloads are an increasingly common way to infect a computer or steal sensitive information.

They usually consist of malicious programs that automatically install when a potential victim visits a booby-trapped website.

"To entice users to install malware, adversaries employ social engineering," wrote Google researcher Niels Provos and his colleagues in a paper titled The Ghost In The Browser.


Finding all the web-based infection vectors is a significant challenge and requires almost complete knowledge of the web.
Google researchers
Avoiding attacks

"The user is presented with links that promise access to 'interesting' pages with explicit pornographic content, copyrighted software or media. A common example are sites that display thumbnails to adult videos."

The vast majority exploit vulnerabilities in Microsoft's Internet Explorer browser to install themselves.

Some downloads, such as those that alter bookmarks, install unwanted toolbars or change the start page of a browser, are an annoyance. But increasingly, criminals are using drive-bys to install keyloggers that steal login and password information.

Other pieces of malicious code hijack a computer turning it into a "bot", a remotely controlled PC.

Drive-by downloads represent a shift away from traditional methods of infecting a computer, such as spam and email attachments.

Attack plan

As well as characterising the scale of the problem on the net, the Google study analysed the main methods by which criminals inject malicious code on to innocent web pages.


It found that the code was often contained in those parts of the website not designed or controlled by the website owner, such as banner adverts and widgets.

Widgets are small programs that may, for example, display a calendar on a webpage or a web traffic counter. These are often downloaded from third-party sites.

The rise of web 2.0 and user-generated content gave criminals other channels, or vectors, of attack, it found.

For example, postings in blogs and forums that contain links to images or other content could unwittingly infect a user.

The study also found that gangs were able to hijack web servers, effectively taking over and infecting all of the web pages hosted on the computer.

In a test, the researchers' computer was infected with 50 different pieces of malware by visiting a web page hosted on a hijacked server.

The firm is now in the process of mapping the malware threat.

Google, part of the StopBadware coalition, already warns users if they are about to visit a potentially harmful website, displaying a message that reads "this site may harm your computer" next to the search results.

"Marking pages with a label allows users to avoid exposure to such sites and results in fewer users being infected," the researchers wrote.

However, the task will not be easy, they say.

"Finding all the web-based infection vectors is a significant challenge and requires almost complete knowledge of the web as a whole," they wrote.



Story from
BBC NEWS

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