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Skype hack - Zero Access or 'social engineering'?


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#1 EspressoLab2015

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Posted 21 April 2015 - 03:36 AM

Hello

 

On Sunday I woke up to learn somebody had accessed my Skype account, changed my password and changed the email address associated with the account. Then they had charged a large sum of money from my associated credit card to the account - and, I found out later, made two short calls to a mobile phone in Egypt.

 

I went through Skype's account recovery process, successfully. Skype say they will retore the money I lost - and I have my account back.

 

I only use Skype on my notebook PC and my iPhone. I hadn't entered my password on either device for many weeks (Skype was permanently logged on).

 

I'm using Windows 7.

 

I hadn't seen any evidence of malware on my PC - but I did the following:

 

* Stopped using PC for the meantime and changed all my web passwords (using another notebook (Apple)).

* Scanned PC using Avira - no threats found. 

* Downloaded latest Kasspersky TDSSKiller and ran in safe mode - no threats. 

* Updated Malwarebytes and then ran in safe mode - threats found.

 

Malwarebytes quarantined four files and several folders which it identified as a Zero Access Trojan.

 

* Donwloaded Hitman pro and ran in safe mode - no threats except PUPs.

* Ran Hitman pro again in normal mode this time - no threats.

* Ran Malwarebytes again in safe mode - no threats.

* Downloaded and ran Symantec's Zero Access removal tool - no threats.

 

My PC exhibited/exhibits three odd behaviours: 

 

1) When I first suspected malware, I opened System Restore and found no available restore points. This has never happened to me before. My hard drive is very full (around 1GB free). However, I had not ignored any alerts telling me that System Restore was not able to work. I am now able to create new System Restore points.

 

2) If I enter Safe Mode With Networking, I can't get online. I have tried both using wifi and plugging the lan cable in directly and cannot connect. I can connect fine in normal mode.

 

3) Sometimes booting up I get a "Please Wait" box between putting in my windows password and the desktop appearing. I don't remember that happening before - but I may be wrong about that.

 

So I am now wondering if it's safe to start using the PC again! I've had conflicting advice from friends ("It'll be fine" and "Rebuild it").

 

It seems that some people believe Skype hacks can easily be 'socially engineered' - by telling Skype's customer support that you've lost a password and changed an email address etc... The email address associated with my Skype account was the same (before the @ sign) as my Skype name, which in retrospect seems like a weakness. So perhaps the Skype issue has nothing to do with the Trojan? I have googled "zero access" with "skype" and nothing comes up. I asked Skype how it had happened, and they blamed it on Malware. (No surprises about that!)

 

Thanks for your help


Edited by EspressoLab2015, 21 April 2015 - 04:56 AM.


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#2 boopme

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Posted 24 April 2015 - 01:38 PM

The best removal for 0access is to post an FRST log.

Please follow this Preparation Guide and post in a new topic.
Let me know if all went well.
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#3 EspressoLab2015

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Posted 26 April 2015 - 01:26 AM

Hi - I have posted the FRST log now:

 

http://www.bleepingcomputer.com/forums/t/574431/zero-access-cant-connect-in-safe-mode-with-networking/



#4 boopme

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Posted 27 April 2015 - 02:02 PM

Log topic
http://www.bleepingcomputer.com/forums/t/574431/zero-access-cant-connect-in-safe-mode-with-networking/

Now that your log is properly posted, you should NOT make further changes to your computer (install/uninstall programs, use special fix tools, delete files, edit the registry, etc) unless advised by a Malware Removal Team member, nor should you continue to ask for help elsewhere. Doing so can result in system changes which may not show it the log you already posted. Further, any modifications you make on your own may cause confusion for the helper assisting you and could complicate the malware removal process which would extend the time it takes to clean your computer.
From this point on the Malware Removal Team should be the only members that you take advice from, until they have verified your log as clean.
Please be patient. It may take a while to get a response because the Malware Removal Team members are very busy working logs posted before yours. They are volunteers who will help you out as soon as possible. Once you have made your post and are waiting, please DO NOT make another reply until it has been responded to by a member of the Malware Removal Team. Generally the staff checks the forum for postings that have 0 replies as this makes it easier for them to identify those who have not been helped. If you post another response there will be 1 reply. A team member, looking for a new log to work may assume another MRL Team member is already assisting you and not open the thread to respond.
The current wait time is 1 - 5 days and ALL logs are answered.
If HelpBot replies to your topic, PLEASE follow Step One so it will report your topic to the team members.
To avoid confusion, I am closing this topic.
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