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ransomware encrypted files with 'onion' extension on a Windows 2003 server

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#1 danmand


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Posted 02 May 2017 - 06:51 AM

Hi All.  I've been to this site many times to get help on viruses but have never had to post until now.


On April 30th, all the data files and shortcuts have been changed to ones with an 'onion' extension on this Windows 2003 server.

I've used the malwarehunterteam site to identify the ransomware and it told me I could use Cry9 to decrypt them.  However, when I tried it I got an error that the file size difference has to be exactly 68 bytes where these are 36 bytes.


Do you folks know of anywhere else I can try and find a decryptor or can you do that here?  



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#2 quietman7


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Posted 02 May 2017 - 08:08 AM

Cry128 is a newer variant of CryptON (X3M, Nemesis) which uses the .onion._ and .onion.to._ extension appended to the end of the encrypted data filename (i.e .fgb45ft3pqamyji7.onion.to._, id-<id>_[qg6m5wo7h3id55ym.onion.to].63vc4, .id_<id>_gebdp3k7bolalnd4.onion._) and leaves files (ransom notes) named _DECRYPT_MY_FILES.txt, -DECRYPT-MY-FILES.txt.


Fabian Wosar released a free decrypter for CryptON ransomware and related variants...Cry9, Cry128.

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.

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