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  #1  
Old 09-10-2012
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Join Date: Nov 2011
Posts: 659
Ransomware - Worm Spreading through Skype IM

Ransomware is a known worm to take control of victim's machine and ask for an ransom amount later so as to give them access to their machine. Ransomware is spreading through Skype instant messages these days, it tricks user by displaying them a message saying "lol is this your new profile pic?" along with a link. As soon as a user click on that link he downloads a ZIP file, this ZIP filed contains executable file and installs a variant of known Dorkbot worm. Dorkbot creates a backdoor via "Blackhole" allowing criminals and hackers to infect one’s machine. In short it allows remote attacker to install ransomware through that backdoor. Once ransomware gets installed on that machine, it will lock the victim’s computer via password or encryption and will ask for a ransom to unlock it. Many people have reported that it demands payment of $200 within 48 hours and threaten them saying “All files on the system will be deleted within 48 hours, if the payment is not made”



Below is the screen of a victim’s machine affected by Ransomware, it says that computer has been used to nefarious nature, illegal pornography, gambling, and illegal drugs websites. It threatens victim to send that information to "Special Department of US government" via a program called "System Cleaner". Claiming that program is developed by U.S. government in order to prevent crime and illegal activity on the Internet. Other than this it also employs click fraud by clicking on ads to generate revenue for its authors.



Since people have started reporting it to skpye, they had assured that they will investigate in to the matter and might upgrade Skype as well. They said that they are aware of the malicious activity and they have already started working on it.
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  #2  
Old 09-10-2012
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Join Date: Sep 2004
Posts: 74
Re: Ransomware - Worm Spreading through Skype IM

Hey thanks for sharing, i use Skype IM and i wasn't aware of it. I will make sure that I don't get tricked by such hackers and criminals messages

Anyways i wanted to know if "lol is this your new profile pic?" is the only message with link spreading this malware or there are other variants of it??? If there are some more than please list them here so that I can go through it.

I also wanted to know what can one do in case his/her system gets infected my this so called Ransomware ???
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  #3  
Old 09-10-2012
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Join Date: Jun 2009
Posts: 230
Re: Ransomware - Worm Spreading through Skype IM

Ransomware has been found affecting system previously and there are different workaround for dealing with it. If anyone?s system might have got affected by this malware or worm, than they can simply follow the steps mentioned in below article for getting rid of it.

I had posted this article previously, there are different screen?s that Ransomware displays so don?t get confused.
How to remove FBI virus/Ransomware from a system
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