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Security Research

The "Dad Walks In On Daughter.. EMBARRASSING!" Facebook Scams

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JULIEN SOBRIER
June 17, 2011 - 3 min read
The "Dad walks in on Daughter.. EMBARRASSING!" Facebook scams have become very prevalent. I listed a few examples on our new blog, Zscaler Analyst Scrapbook. I'll go into more detail in this post.

A Google search for "Dad walks in on Daughter.. EMBARRASSING!" shows hundreds of spam pages. They are mostly new domains, set up just for the purpose of scamming users.
 
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Google search shows spam pages

Some of the domains identified are:
  • the-ping.org
  • t401.org
  • ectoplax.info
  • 20yearstimephoto.info
  • 20yearsphoto.info   
Links can also be found by searching directly on Facebook:
  • apps.facebook.com/cooljoysole/
  • apps.facebook.com/dadwalksin/
  • apps.facebook.com/fgdfhgdfgdf/  
  • www.facebook.com/pages/Dad-walks-in-on-Daughter-Embarrassing/217239648303953
Facebook users should remember that Facebook applications are not necessary reviewed by the Facebook staff, and can be harmful.

Besides being wide spread, this spam is interesting because it shows the wide variety of scams and spam associated with Facebook. Here are a few.

Like-Jacking

A very common technique used with Facebook spam involves likejacking. The spammer entices users to click on a link or image, often on the premise of watching a funny video. However, the page contains a hidden Like button that is unknowingly triggered by the user. The Like button is placed in a hidden iFrame or hidden DIV tag that follows the mouse.

This technique is used to spread the spam page via Facebook profiles to get more users to visit the page. This likejacking technique can be found, for example, on gadgetera.net or t401.org.
 
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Fake video layer hiding a Like button

On these pages, the likejacking technique used is somewhat unique: 23 Like Buttons are placed in the center of the video, below what looks like the play button. The opacity is set to 0, meaning these buttons are totally transparent and cannot be seen. When a user believes he is clicking on the play button, he is actually clicking on one of the like buttons.
 
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Like buttons rendered visible

You can check the details in this video:
 
 

Script injection

This second example is much more harmful. The attackers ask users to copy and paste Javascript code into their Browser URL bar. The Javavascript has full access to contents in the open browser tab. It can grab the user session cookie and send it to the attacker. This gives the attacker full access to and control of your Facebook account.
 
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Script injection
In the example, the attackers didn't try very hard to hide their intentions. They load the malicious Javascript from a page called owned.php!

These types of script injection used to be done through cross-site scripting (XSS), or other vulnerabilities. Now unfortunately, attackers are finding that they can bypass security protections as users are willing to do anything, including willingly executing malicious code!

Comment-Jacking

Instead of using a Like button to spread a page, spammers can also use comments. On hxxp://kingsoz.org/, the user is asked to enter a captcha to access the video. The result is actually entered into a Facebook comment box (you can see the "comment" button).
 
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User asked for a Captcha
Similar to the "Like" button, this adds content to the victim's Facebook profile and shows up in his friend's News page.
 
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Spam link on my user profile after visiting hxxp://kingsoz.org/

Survey, Software Installation

Getting the spam page hosted in a victim's Facebook profile is only the first step for a scammer. Ultimately, they want to make a few bucks from each visitor. A common technique used involves asking visitors to fill out a survey, install software, or to click on advertising to verify that they are in fact a human and not an automated script. The spammers get paid for each action.
 
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After getting 5 spam pages added to my profile, filling out 3 surveys and getting my Facebook account stolen, I was still not able to watch this video :-)

-- Julien
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