Friday, May 09, 2008

Skype Phishing Pages Serving Exploits and Malware

"Please, don't update your account information", at least not on recently spammed phishing pages which will not only aim at obtaining your accounting data, but will also infect with you malware through exploiting MS06-014. These phishing emails are a great example of blended threats, and while we're been witnessing the ongoing consolidation between phishers, spammers and malware authors for the last two years, this particular phishing campaign looks like a lone gunman operation.

Original message : "Dear valued skype member: It has come to our attention that your skype account informations needs to be updated as part of our continuing commitment to protect your account and to reduce the instance of fraud on our website. If you could please take 5-10 minutes out of your online experience and update your personal records you will not run into any future problems with the online service. However, failure to update your records will result in account suspension. Please update your records on or before May 11, 2008. you are requested to update your account informations at the following link. To update your informations."

Phishing URL : alertskype.freehostia.com, which is then forwarding to skypealert.ns8-wistee.fr/Secure.skype.com/store/member/login.html/Login.aspx/index/Skype.Members/index.htmls/ where the malware and the exploit are hosted.

Scanners result : Result: 3/31 (9.68%)
VBS/Small.W.1; Exploit-MS06-014
File size: 13569 bytes
MD5...: 4d6a559adf0602f7fd58b884e00894dc
SHA1..: 056f75e0dd94d03daeb04ae83d1b4a1b7476c0f2
SHA256: 3f08427228489edffd57e927db571aea06716c192ec72f91ea8115c0c7f978eb

The phishing page wasn't created, but copied from Skype's original login page. The phisher even left an email within the VBS, in this case - ikbaman@gmail.com. Virtual greed or contact point optimization for fraudulent purposes, passive phishing attacks can sometimes be quite active and leave the curious clicker with a false feeling of security.

Thursday, May 08, 2008

A Chinese DIY Multi-Feature Malware

What is the current state of the Chinese IT Underground? Are its participants copycats who just localize successful malware kits, and port open source malware to web applications in between adding more features within? For the past several years, and more recently with the anti CNN attacking campaigns courtesy of Chinese hacktivists and the average Internet users, the Chinese IT Underground has demonstrated its self-mobilization capabilities and mindset, which when combined with basic principles of unrestricted warfare has the potential to outpace any other country's current cyber warfare capabilities - like it is for the time being from a realistic perspective.

In people's information warfare self-mobilization happens consciously, and the anti CNN campaigns perfectly demonstrate this, with an emphasis on how even the non-technical, but Internet bandwidth empowered Chinese user can consciously become a part of a PuppetNet. And while it may also seem logical that the attacking crowds would already be using a well known set of DoS tools, the most recent case demonstrates their capabilities to code and release such DoS tools on demand. For instance, excluding a popular in China DIY malware with custom DDoS capabilities, the rest of the tools were released for this particular campaign.

Furthermore, in between the average password stealers, and DIY malware droppers, there are releases going beyond the average tools, which demonstrate a certain degree of creativity - like this one.

Key features :
- the GUI C&C's objective is to make it easier to control a large number of infected hosts with an interesting option to measure the bandwidth in order to properly allocate it for DDoS attacks
- has a built-in dropping capability for backdooring the already infected hosts through a web shell
- has a built-in dropping capability of several exploits onto the infected hosts in order to use the infected hosts as infection vectors, a malicious infrastructure on demand
- intranet and Internet port scanning

Scanners result : 13/31 (41.94%)
Trojan.Flystudio.AI
File size: 660659 bytes
MD5...: d3bfb06d992b1274a69a479348f39c60
SHA1..: bc474a8bea0b4a2a4ad446abf6e3b978e1fa79c8

Using a DIY malware kit as a dropper of exploits onto infected hosts, who would later on be used as infection vectors to increase the botnet's population is a new approach applied by the Chinese underground. In comparrison, following an underground's lifecycle, the Chinese one is still more features-centered compared to the Russian one for instance, where once features become a commodity, more emphasis is put into quality assurance and extending the lifecycle of the malware by ensuring it remains undetected for as long as possible - the product concept vs the rootkit stage.

Wednesday, May 07, 2008

Blackhat SEO Campaign at The Millennium Challenge Corporation

Among the very latest victims of a successful blackhat SEO campaign that has managed to inject and locally host 1,370 pharmaceutical pages, is the Millennium Challenge Corporation (mcc.gov) - a United States Government corporation designed to work with some of the poorest countries in the world.

The injected pages are loading remote images from what looks like a secondary compromised site, in this case ttv-bit.nl which is a legitimate Dutch table tennis association. Compared to previous blackhat SEO campaigns that I've assessed in the past taking advantage of redirection only, the layout of the embedded pages in this one is sticking the remotely loading images at the top of the page, and placing the original at the bottom.

The campaign's main URl is ttv-bit.nl/rr/c.php where a redirector is forwarding to canadiandiscountsmeds.com, and these are some of the remotely loading images ttv-bit.nl/rr/s.JPG; ttv-bit.nl/rr/l.JPG; ttv-bit.nl/rr/c.JPG; ttv-bit.nl/rr/v.JPG

Moreover, as in the recent massive SEO poisoning attacks, the referrer is checked, and given that the campaign URL is dedicated to mcc.gov only, only mcc.gov referrers are directed to the spam pages. These blackhat SEO incidents targeting sites with high page ranks, are either the result of the automated process of searching for vulnerable such high page rank-ed sites, or direct abuse of purchased access to the already compromised hosts via web shells or web backdoors.

Related posts:
Massive IFRAME SEO Poisoning Attack Continuing
Massive Blackhat SEO Targeting Blogspot
The Invisible Blackhat SEO Campaign
Attack of the SEO Bots on the .EDU Domain
p0rn.gov - The Ongoing Blackhat SEO Operation
The Continuing .Gov Blackat SEO Campaign
The Continuing .Gov Blackhat SEO Campaign - Part Two
Compromised Sites Serving Malware and Spam

Harvesting YouTube Usernames for Spamming

With a recently distributed database of several thousand YouTube user names, spammers continue trying to demonstrate their interest in establishing as many contact points with potential receipts of their message, or even malware given the harvested user names database ends up in someone else's hands.

Building such "hitlists" of end points to be spammed, or served malware, is setting up the foundations for the success of popular tools used for spamming video and social networking sites, efficiently, and with a very low degree of unsuccessful attempts to deliver the message. Moreover, these developments seem to indicate an emerging trend of building databases that would later one be efficiently abused, starting from the Thousands of IM Screen Names in the Wild uncovered in October, 2007, and going to the spamming of Skype users.

Direct applicability for spamming and malware campaigns, or a bargain for finalizing a deal, databases of any kind are prone to be abused in principle, and it's malicious parties in general I'm refering to in this case.

Tuesday, May 06, 2008

Ethical Phishing to Evaluate Phishing Awareness

What is the most efficient and cost-effective way of both, measuring your employees awareness of phishing threats, and building awareness of the threat simultaneously? By sending them ethical phishing emails to see which department based on which social engineering campaign is more susceptible to phishing attacks, at least that's what PhishMe.com is all about :

"Effective, memorable, and secure user awareness testing and training is now available with just a few clicks. Using PhishMe.com’s built-in templates and WYSIWYG functionality, you can emulate real phishing attacks against your employees within minutes. Focus your training efforts on the most susceptible employees by providing immediate feedback to anyone that falls victim to these exercises. Phish your employees before hackers do!"

Once watching the demo online, you'll get the feeling that it's actually a real phisher's web interface to spamming out phishing emails, so I guess the bad guys can in fact learn from the good guys standardizing approach and metrics mentality applied.

For the time being, Rock Phish represents the most efficiency centered phishing approach, with a single IP hosting numerous domains, each of those hosting over ten different phishing campaigns on average each of these with a dedicated cybersquatted subdomain. However, with the ongoing commoditization of phishing pages, the localization and segmentation of phishing campaigns, the next logical development would be the public release of a point'n' click web interface for managing real phishing campaigns.

Or perhaps a public leak, given that someone out there might have already came up with such an interface, without the sexy layout? And by the time there hasn't been a release or a leak, spamming tools would continue getting adapted for phishing purposes, and log parsers would be a phisher's best friend in respect to evaluating the success rate of a phishing campaign.

Monday, May 05, 2008

MySpace Hosting MySpace Phishing Profiles

The ongoing arms race between phishers and social networking sites, is a great example of how malicious parties continue to be a step ahead of the reactive response of those and many other web properties. The majority of phishing emails usually take advantage of typosquatting, or sub-domaining to the point where the URL is perfectly mimicking the only property's web application structure. There are however, these exceptions adapting to current security practices in place, and abusing them.

The large scale myspace phishing attack that I assessed in November, 2007, was particularly interesting to discuss because of its internal spamming structure - a social networking account that's already been phished is used to disseminate the phishing urls to all of its friends, collecting accounting data and serving malware.

The phishing tactic that I'll assess in this post, demonstrates the adaptability of phishers whose efforts to adapt to MySpace's current security practices in place, have greatly improved their chances for tricking a large number of visitors. How come? They are not using the natural profile.myspace.com.bogusdomain.info as usual, but are actually using authentic MySpace phishing profiles, hosted at MySpace.com.

Key summary points :

- phishers are generating phishing profiles making it look like the visitor hasn't authenticated herself to view a profile, and pushing the fake login form in front of the fake profile
- the phishing profiles are hosted at MySpace.com
- ignoring the profile's original layout, the fake login windows is pushed upon visiting a phishing profile in front of the profile
- from a social engineering perspective, given that the "action" is happening at MySpace.com, from spamming the phishing profile, to more users getting tricked given its not a secondary domain, that's an example of social engineering going beyond the average typosquatting
- upon logging in reasonably thinking the user is at MySpace.com, the accounting data is forwarded to a phishing host located on a free web space provider

Let's demonstrate the technique by assessing a currently active phishing profile - myspace.com/ecslut which you can also see in the screenshot above. Once the accounting data gets submitted to the profile hosted at MySpace.com, it redirects the output to myspace101.freeweb7.com/next.php, where a Google Analytics with id "UA-3234554-2" collects metrics for the campaign, then its forwards to MySpace's main page.

A phishing campaign that's spamming millions of users with myspace101.freeweb7.com wouldn't really last online long enough for someone to fall victim into the scam. But when phishers shift the tactic from phishing pages relying on typo/cybersquatting to phishing profiles and start spamming with myspace.com/phishing_profile, success rate is prone to sky rocket.

Related posts:
Phishing Metamorphosis in 2007 - Trends and Developments
Web Site Defacement Groups Going Phishing
Phishing Tactics Evolving
Phishing Emails Generating Botnet Scaling
Phishers, Spammers, and Malware Authors Clearly Consolidating
Phishing Pages for Every Bank are a Commodity
RBN's Phishing Activities
Inside a Botnet's Phishing Activities
Large Scale MySpace Phishing Attack
Update on the MySpace Phishing Campaign
MySpace Phishers Now Targeting Facebook
DIY Phishing Kits
DIY Phishing Kit Goes 2.0
PayPal and Ebay Phishing Domains
Average Online Time for Phishing Sites
The Phishing Ecosystem
Assessing a Rock Phish Campaign
Taking Down Phishing Sites - A Business Model?
Take this Malicious Site Down - Processing Order..
209 Host Locked
209.1 Host Locked
66.1 Host Locked
Confirm Your Gullibility
Phishers, Spammers and Malware Authors Clearly Consolidating
The Economics of Phishing