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Nemesis decryptor ransomware


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#1 bguenther

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Posted 30 May 2017 - 11:06 AM

Hi,

 

I have a customer who has been hit with ransomware virus.

 

I tried to identify it with https://id-ransomware.malwarehunterteam.com/identify.php

 

It said not recognize and to post it here. Please reference this case SHA1: 9cc7a13df88993501461be102ad478ea7ae23be4

 

I tried Amnesia (I tried renaming bad file to filename.amnesia but didnt work to decrypt either), Cry128, CryptON, Cry9. All failed. (File i used for testing was 379KB)

 

Good and bad file are same size.

 

Hope this helps. Thank you for your efforts. Let me know if i can provide anything else that can help.


Edited by bguenther, 30 May 2017 - 11:12 AM.


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#2 quietman7

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Posted 30 May 2017 - 08:30 PM

If ID Ransomware could not identify the infection, why does your topic title say Nemesis decryptor?

Are there any obvious file extensions appended to or with your encrypted data files? If so, what is the extension and is it the same for each encrypted file or is it different?

Did you find any ransom notes and if so, what is the actual name of the note?

Did the cyber-criminals provide an email address to send payment to? If so, what is the email address?
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#3 bguenther

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Posted 30 May 2017 - 08:45 PM

The note said:

*** ALL YOUR WORK AND PERSONAL FILES HAVE BEEN ENCRYPTED ***
 
To decrypt your files you need to buy the special software – «Nemesis decryptor»
You can find out the details / buy decryptor + key / ask questions by email: mk.nightwoilf@aol.com, mk.Nighwolf@inbox.lv
 
Your personal ID: 1701999978
 
The name of the note: ### DECRYPT MY FILES ###.txt
 
The file extension is .netn6 They were all the same


#4 quietman7

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Posted 30 May 2017 - 08:51 PM

That appears to be the newer variant of CryptON (Cry9, Cry36, Cry128, X3M, Nemesis).

There is an ongoing discussion in this topic where victims can post comments, ask questions and seek further assistance. Other victims have been directed there to share information, experiences and suggestions.Rather than have everyone with individual topics, it would be best (and more manageable for staff) if you posted any more questions, comments or requests for assistance in the above support topic discussion...it includes experiences by experts, a variety of IT consultants, end users and company reps who have been affected by ransomware infections. To avoid unnecessary confusion, this topic is closed.

Thanks
The BC Staff
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