Nestor

NELASOD Error: Unable to decrypt file with ID

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.nelasod is one of the newer variants that uses secure RSA encryption. Unless the ID ends in "t1" then it's doubtful the decrypter will ever be able to decrypt your files.

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13 hours ago, Nestor said:

Ok...Thank you for your reponse...

I was reminded by @Amigo-A that .nelasod was in fact an older variant, which is supported by our decrypter. Please see the information and instructions at the following link to learn about the decrypter and how to use it.
https://www.bleepingcomputer.com/news/security/stop-ransomware-decryptor-released-for-148-variants/

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Try variant "B"

With the new Decryption Service, you need to find the largest encrypted files of different formats (PNG, JPG, JPEG, PDF, DOC, DOCX, MP3, MP4 ...) and the original unencrypted file for each type. Then upload it to the service. If the decryption service will found the decryption key, then all files of this type can be decrypted.
Also you need to do with each file type (PNG, JPG, JPEG, PDF, DOC, DOCX, MP3, MP4 ...) that you need to decrypt.

At first glance it seems that it is impossible to find a pair of encrypted + original files, but this is not so.

Here is a sample list where you can find the originals of the encrypted files :

1) on flash drives, external drives, CD / DVD, memory cards of the camera, phone;
2) in attachments of emails sent or received by you;
3) among the copies of shared photos of friends, relatives (in their PC) that you gave;
4) among the uploaded photos in the social. networks, including via smartphone and tablet;
5) among the uploaded photos to cloud services (Google Disk,  OneDrive, Yandex Disk etc.);
6) on the sites of ads, forums, where you could previously send photos or images;
7) among unencrypted files, copies, renamed files on your PC;
8 ) on an old PC or disk, from where you transferred photos and documents to a new PC;
9) you can re-upload from the Internet previously downloaded photos, pictures, etc .;
10) you can use sample images supplied with Windows;
11) take photos or pictures that you previously posted on the avatar on the forums.
12) extract previously deleted files from the Recycle Bin or restore it with a special program.
 
If decryption failed ...
 
It is possible that the original file was an inaccurate copy of the encrypted. This could be due to the fact that earlier you yourself reduced or corrected it in the editor, or uploaded to social networks, cloud services, and there the file was somehow automatically changed.
Look for more files and try different pairs of encrypted and original files with the same name. Very often files can have the same name, but are not a copy of each other. Vocabulary used in any language is limited. The possibilities of PCs, cameras and other devices for taking photos are also limited. In cameras and mobile devices, names for photos are given automatically according to a specific format, so photos with the name from IMG_0001.JPG to IMG_9999.JPG can be quite a lot in different years. Smartphones can give photos more original names, such as IMG_20171012_170451.jpg - here and the date of shooting, and the sequence number, thus the repetition of the name is unlikely.

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Here your used different files

J7O7mQ7.png

Files must be identical in name, only the encrypted ones have an .nelasod extension.

You have to try with different types of files (PNG, JPG, JPEG, PDF, DOC, DOCX, MP3, MP4 ...). Not everyone can be decrypted.

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6 hours ago, Nestor said:

Im trying but it isnt work. I dont understand how function...

You need what we call a "file pair", which is an original unencrypted file and an encrypted copy of the same file. You then submit those via our website, and that will help the decryption service learn how to decrypt some of your files.

It's important to note that this does not work for all files. For instance, if you use a file pair for an MP3 file, then the decrypter should be able to decrypt most (if not all) MP3 files on your computer, however it will not be able to decrypt any other files. You'll need to have a file pair for every type of file you want to decrypt.

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Ok. I understood. I've tried but I could not decrypt any file. 

I put the file encrypted and put the file with the same extension but it isnt work. 

I ve been thinking if perhaps it has to do with the differents versions of the programs. I have files of several years and the programs versions are differents now when they were created. 

 

 

Opera Instantánea_2019-10-26_060020_decrypter.emsisoft.com.png
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On 10/25/2019 at 1:59 PM, Amigo-A said:

Here your used different files

J7O7mQ7.png

Files must be identical in name, only the encrypted ones have an .nelasod extension.

You have to try with different types of files (PNG, JPG, JPEG, PDF, DOC, DOCX, MP3, MP4 ...). Not everyone can be decrypted.

 

I sent the wrong image. Really, I used all possibles options, with differents extensions.

 

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On 10/26/2019 at 7:14 AM, Nestor said:

I put the file encrypted and put the file with the same extension but it isnt work.

Do you see the error message in your screenshot? "invalid file pair". This means that you didn't supply two copies of the same file.

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5 hours ago, GT500 said:

Do you see the error message in your screenshot? "invalid file pair". This means that you didn't supply two copies of the same file.

This error occurred when I didn't  know how to do it. Now I know, for your explanations...

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16 hours ago, Nestor said:

This error occurred when I didn't  know how to do it. Now I know, for your explanations...

Did the submission for give you a different error message when you tried with a correct file pair?

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Quote

.mosk extension

This is one of the new variants of STOP Ransomware

Try this tool,  if the files are encrypted with an offline key, then there is a chance to decrypt some files.

https://www.emsisoft.com/ransomware-decryption-tools/free-download 
https://www.emsisoft.com/ransomware-decryption-tools/stop-djvu

Files encrypted with online keys (when the PC was connected to the Internet) will not be decrypted. 

 

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Files encrypted with online keys (when the PC was connected to the Internet) will not be decrypted. 

 

 

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On 11/9/2019 at 8:44 AM, Faro said:

what can we do with online encryption?

That depends on the variant. If it's an older variant, then the decrypter can be "trained" how to decrypt your files by uploading file pairs to our submission form. If it's a newer variant, then there is currently nothing that can be done to recover the files. There is more information at the following link:
https://support.emsisoft.com/topic/32045-about-the-stopdjvu-decrypter/

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Hello, i tried to decrypt with .mbed extension which it failed to. I tried to update the database with same file before and after encryption and it said its a newer version. All my work files are in it, is it viable to wait for days for an update to your encryption systems? i think it was encrypted while the computer was online, sadly.

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hello I need help I have files encrypted with the .mosk ramsomware

 

Error: Unable to decrypt file with ID: hSxfBZ0uAYq6gUg6XlFmyROBLsImhUYYinvMojXg
 

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11 hours ago, soto said:

hello I need help I have files encrypted with the .mosk ramsomware

Error: Unable to decrypt file with ID: hSxfBZ0uAYq6gUg6XlFmyROBLsImhUYYinvMojXg

This is a newer variant of STOP/Djvu, and your ID is an online ID, so there is currently no way to decrypt your files. There is more information at the following link:
https://support.emsisoft.com/topic/32045-about-the-stopdjvu-decrypter/

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On 12/1/2019 at 12:05 PM, ARDHI said:

help me fix runsomware .hets

This is a newer variant of STOP/Djvu. If you have an offline ID, then once we can find the decryption key for this variant and add it to our database you will be able to recover your files. However, if you have an online ID (which is more likely) then it will not be possible to recover your files. There is more information at the following link:
https://support.emsisoft.com/topic/32045-about-the-stopdjvu-decrypter/

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14 hours ago, Rohit Kumar said:

ID : mrhfFb7gHV2Ef85vqPrwF8NyDuJpp7P2yHgXPKez

This is a newer variant of STOP/Djvu, and your ID is an online ID, so there is currently no way to decrypt your files. There is more information at the following link:
https://support.emsisoft.com/topic/32045-about-the-stopdjvu-decrypter/

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On 12/8/2019 at 6:47 AM, jaja said:

Unable to decrypt file with ID: hgvYyLbttzhePDFqJWernOTDNOHOCuH4gEj12X4U

...

How do I recovery my files which ecrypted by .righ virus

This is a newer variant of STOP/Djvu, and your ID is an online ID, so there is currently no way to decrypt your files. There is more information at the following link:
https://support.emsisoft.com/topic/32045-about-the-stopdjvu-decrypter/

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hi

my files encrypt with ( .nasoh) and I try your tools djvu but not working

Error: Unable to decrypt file with ID

how could I decript the files please help me

its very important to me and I have no other copy of the original files

thanks

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16 hours ago, ammar85 said:

my files encrypt with ( .nasoh) and I try your tools djvu but not working

Error: Unable to decrypt file with ID

.nasoh is an older variant. You didn't post your ID, however the error you mentioned usually means that you have an online ID. With older variants you will need to supply file pairs to our online submission form in order for the decrypter to "learn" how to decrypt your files. There's more information at the following link:
https://support.emsisoft.com/topic/32045-about-the-stopdjvu-decrypter/

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hello somebody help me. my pc was attacked with .mbed ransomware, which encrypt all of my files. i have tried to decrypit by stop/djvu but it not worked for me. there is a id shows

ID : fc7CrhsdNTizhEnvn9jUv8BblKUGqnDFfDLCHYti

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4 hours ago, Skel Exer said:

ID : fc7CrhsdNTizhEnvn9jUv8BblKUGqnDFfDLCHYti

This is a newer variant of STOP/Djvu, and your ID is an online ID, so there is currently no way to decrypt your files. There is more information at the following link:
https://support.emsisoft.com/topic/32045-about-the-stopdjvu-decrypter/

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My files is encrypted with .mkos extension. But when i try to decrypt i receive the message:

 Unable to decrypt file with ID: T2rTkvqPawuxU1ZHaaduwWpHn6I22SeYX39M9Zt1

Can i decrypt my files?

 

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Hi! I think i have the same problem as the rest of us....  a newer with online ID, but....

I ask, just in case. May be u have some solution for my F*** problem.¿?
My encrypted files are .gesd.
I have a pair of files
It doesnt care, no?

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I have same problem since yesterday,all my files have extension nbes.

So far I have find out that simple online converter from the link : https://online-audio-converter.com/ recognize and even convert all my mp3 files and allow me to download them in any chosen format. Other converters can't find file in specific folder.

But my problems are photos, Emsisoft decryptor  didn't do the job, keep saying :

Error: Unable to decrypt file with ID: T2rTkvqPawuxU1ZHaaduwWpHn6I22SeYX39M9Zt1

or,

Error: Could not find a part of the path 'C:\Program Files (x86)\Common Files\AV\avast! Antivirus'.
Error: Could not find a part of the path 'C:\Program Files (x86)\Common Files\Oracle\Java\javapath'.

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Quote

T2rTkvqPawuxU1ZHaaduwWpHn6I22SeYX39M9Zt1

This is new variant of STOP Ransomware

The signs "t1" at the end of the ID can indicate that in the future the files can be decrypted if the developers receive a decryption key. Today, this is the newest variant, and no one has yet announced that they bought the key from extortionists to pass it to the developers, so that they complement its in decryptor.

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26 minutes ago, Amigo-A said:

This is new variant of STOP Ransomware

The signs "t1" at the end of the ID can indicate that in the future the files can be decrypted if the developers receive a decryption key. Today, this is the newest variant, and no one has yet announced that they bought the key from extortionists to pass it to the developers, so that they complement its in decryptor.

I wonder how the mp3 files can be decrypted by a simple converter,and the other documents,jpg etc... can't be decrypted? What is it in that converter softwer that is able to decrypt?

How can I save these nbes files to restore it afterward,can they be damaged somehow?

THX in advance.

 

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STOP Ransomware does not encrypt the entire file. A maximum of 0x25800 bytes (~ 150 KB) of data is encrypted at the beginning of each file.

The converter does not decrypt. This is a known fix for mp3-files. A file passed through the converter will not be a 100% copy of an unencrypted file.

On forum BleepingComputer has talked several times about this recovery of music files. Even if it is affected more at the beginning, this correction will clip the unreadable beginning of the music file, i.e. an introduction that can be ignored when playing, without prejudice to the main musical composition.

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Also known is the fact with archives. If there are several files in the archive, only the first 1-2 will be damaged by encryption with 'STOP Ransomware'.

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On 12/15/2019 at 1:36 PM, phsnake said:

My files is encrypted with .mkos extension. But when i try to decrypt i receive the message:

 Unable to decrypt file with ID: T2rTkvqPawuxU1ZHaaduwWpHn6I22SeYX39M9Zt1

Can i decrypt my files?

This is a newer variant of STOP/Djvu. You have an offline ID (at least for the file this error was for), so once we can find the decryption key for this variant and add it to our database you should be able to recover your files. There is more information at the following link:
https://support.emsisoft.com/topic/32045-about-the-stopdjvu-decrypter/

 

On 12/15/2019 at 11:58 PM, Nick Nolte said:

Hi! I think i have the same problem as the rest of us....  a newer with online ID, but....

I ask, just in case. May be u have some solution for my F*** problem.¿?
My encrypted files are .gesd.
I have a pair of files
It doesnt care, no?

There's nothing we can do for online ID's for .gesd until we can get our hands on the database of private keys run by the criminals.

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On 12/25/2019 at 9:46 AM, diegouploads said:

I got infected with .piny, not yet support for this variable?

All variants are supported by the decrypter, but newer variants (released after August 2019) use RSA keys that are not susceptible to the attack we use to decrypt files in older variants, and thus it isn't possible to decrypt files from newer variants unless we already know the private key for your ID. This means that with newer variants we're limited to only being able to decrypt files if they have an offline ID. There is more information at the following link:
https://support.emsisoft.com/topic/32045-about-the-stopdjvu-decrypter/

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22 hours ago, praveen singh said:

any chance to i can decrypt this

This is a newer variant of STOP/Djvu. If you have an offline ID, then once we can find the decryption key for this variant and add it to our database you should be able to recover your files. However, if you have an online ID (which is more likely) then it will not be possible to recover your files. There is more information at the following link:
https://support.emsisoft.com/topic/32045-about-the-stopdjvu-decrypter/

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Hello sir. My PC is infected with .kodc
I got his error when trying to decrypt the files;

Unable to decrypt Old Variant ID: m8eTZXfIcnmiTRR4xYFNlsm0Rp0Gedmxk4F6ERDb
First 5 bytes: 255044462D



Is there any solution to this?
 

 

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15 minutes ago, Josh254 said:

Unable to decrypt Old Variant ID: m8eTZXfIcnmiTRR4xYFNlsm0Rp0Gedmxk4F6ERDb

So it is written when the Emsisoft Decryptor cannot decrypt the files. The reason is that the encryptor was use an online key to encrypt files. 
An online key is generated on the ransomware server and is a random collection of characters that cannot be picked up for free decryption. Not enough processing power of all supercomputers combined.

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