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Infected with Critroni.gen


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6 replies to this topic

#1 Mindert

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Posted 10 June 2015 - 04:14 AM

My PC is infected with the Critroni.gen virus. I got this by clicking on an attachment (Zip file) in my mail.

I removed the virus, but all of my documents and a lot of other files are encrypted.

Is there a tool to decrypt these files?

I already used the removal toolkit of Jadacyrus-ransomwareremovalkit without any succes!

I also tried the dr.Web "te94decrypt.exe" and DatarecoveryPro without succes.


Edited by Mindert, 10 June 2015 - 07:12 AM.


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#2 Oh My!

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Posted 14 June 2015 - 09:36 PM

Greetings Mindert and :welcome: to BleepingComputer's Virus/Trojan/Spyware/Malware Removal forum.

My name is Oh My! and I am here to help you! Now that we are "friends" please call me Gary.

If you would allow me to call you by your first name I would prefer to do that. :thumbup2:

===================================================

Ground Rules:
  • First, I would like to inform you that most of us here at Bleeping Computer offer our expert assistance out of the goodness of our hearts. Please try to match our commitment to you with your patience toward us. If this was easy we would never have met. :)
  • Please do not run any tools or take any steps other than those I will provide for you while we work on your computer together. I need to be certain about the state of your computer in order to provide appropriate and effective steps for you to take. Most often "well intentioned" (and usually panic driven!) independent efforts can make things much worse for both of us. If at any point you would prefer to take your own steps please let me know, I will not be offended. I would be happy to focus on the many others who are waiting in line for assistance.
  • Please perform all steps in the order they are listed in each set of instructions. Some steps may be a bit complicated. If things are not clear, be sure to stop and let me know. We need to work on this together with confidence.
  • Please copy and paste all logs into your post unless directed otherwise. Please do not re-run any programs I suggest. If you encounter problems simply stop and tell me.
  • When you post your reply, use the Replytopic.jpg button instead.
  • In the upper right hand corner of the topic you will see the Followtopic.jpg button. Click on this then choose Immediate E-Mail notification and then Proceed and you will be sent an email once I have posted a response.
  • If you do not reply to your topic after 5 days we assume it has been abandoned and I will close it.
  • When your computer is clean I will alert you of such. I will also provide for you detailed information about how you can combat future infections.
  • I would like to remind you to make no further changes to your computer unless I direct you to do so.
  • Now let's get started :thumbup2:
===================================================

Now that I am assisting you, you can expect that I will be very responsive to your situation. If you are able, I would request you check this thread at least once per day so that we can try to resolve your issues effectively and efficiently. If you are going to be delayed please be considerate and post that information so that I know you are still with me. Unfortunately, there are many people waiting to be assisted and not enough of us at BleepingComputer to go around. I appreciate your understanding and diligence.

Thank you for your patience thus far. It is very doubtful your files can be decrypted but if you want to make sure your computer is otherwise clean please perform the following steps.

===================================================

Farbar Recovery Scan Tool (FRST)

--------------------
  • Download Farbar Recover Scan Tool for either 32 bit or 64 bit systems and save it to your desktop <<< Important
  • If you are unsure if you have 32 bit or 64 bit simply download and try one. If that doesn't run properly the other one should
  • Double click the icon
  • Click Yes to the disclaimer
  • Make sure the Addition.txt box is checked
  • Click Scan and allow the program to run
  • Click OK on the Scan complete screen, then OK on the Addition.txt pop up screen
  • 2 Notepad documents should now be open on your desktop.
  • Please copy and paste the contents of both in your reply
===================================================

System Summary Information

--------------------
  • Press the windows key Windows_Logo_key.gif + r on your keyboard at the same time
  • Type msinfo32 and press Enter
  • Left click on System Summary
  • Click File, Save, and name the file Summary
  • Zip and attach the file to your reply
===================================================

Things I would like to see in your next reply. Please be sure to copy and paste any requested log information unless you are asked to attach it. :thumbsup2:
  • FRST results
  • Addition log
  • System Summary Information

Edited by Oh My!, 14 June 2015 - 09:37 PM.

Gary
 
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#3 Mindert

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Posted 16 June 2015 - 06:58 AM

Hi Gary

First I have removed the virus with MBAM and I ran a AVG virus scan.

Second I have replaced my harddisk with a new one

Installed Windows7 again.

I put the old harddisk in an USB external Harddiskdrive and tried to recover lost files with QPhotorec_win.exe.

I recoverd some lost files, but not enough.

I need a decryption on some files. Specially my Outlook.pst files.

 

I have dowloaded the FRST and ran this, but is this still neccessary?

 

with regards

 

Mindert



#4 Oh My!

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Posted 16 June 2015 - 01:43 PM

No there is no need to run FRST now. I am afraid there is no way for us to decrypt any files.
Gary
 
If I do not reply within 24 hours please send me a Personal Message.

"Lord, to whom would we go? You have the words that give eternal life. We believe, and we know you are the Holy One of God."

#5 Oh My!

Oh My!

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Posted 18 June 2015 - 10:48 PM

Do you need assistance with anything else?
Gary
 
If I do not reply within 24 hours please send me a Personal Message.

"Lord, to whom would we go? You have the words that give eternal life. We believe, and we know you are the Holy One of God."

#6 Oh My!

Oh My!

    Adware and Spyware and Malware.....


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Posted 19 June 2015 - 08:23 PM

Greetings,

===================================================

3 Day Bump

It has been more than 3 days since my last post.
  • Do you still need help with this?
  • If after 48hrs you have not replied to this thread then it will have to be closed.

Gary
 
If I do not reply within 24 hours please send me a Personal Message.

"Lord, to whom would we go? You have the words that give eternal life. We believe, and we know you are the Holy One of God."

#7 Oh My!

Oh My!

    Adware and Spyware and Malware.....


  • Malware Response Instructor
  • 35,565 posts
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Posted 21 June 2015 - 09:08 AM

It appears that this issue is resolved, therefore I am closing the topic. If that is not the case and you need or wish to continue with this topic, please send me or any Moderator a Personal Message (PM) that you would like this topic re-opened.
Gary
 
If I do not reply within 24 hours please send me a Personal Message.

"Lord, to whom would we go? You have the words that give eternal life. We believe, and we know you are the Holy One of God."




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