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Files encrypted with .nujdlwi extension, new ransom?


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#1 test0r

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Posted 06 June 2016 - 09:07 AM

Hello,

 

I'm new to the forum as the ransomware infection that i got today. (from email attach)

 

My files are encrypted with a ".nujdlwi" file extension, and all the files have the same extension.

 

Ransomware-ID is not able to recognize the ransomware, so here is a sample encrypted file: http://www.filedropper.com/praticdomenicoxls

 

the strange thing is that there is NO instructions/recovery file/html/webpage/popup/autostart stuff

 

 

Thank you guys

 


p.s. tried all the public decryptor of course but none is working :(



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#2 Demonslay335

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Posted 06 June 2016 - 09:21 AM

There should definitely be a ransom note somewhere in any directory that was encrypted, or the desktop.

 

I would suspect CTB-Locker. It uses a completely random 7-character extension for each victim. I cannot add a rule for this currently as it would generate too many false-positives unfortunately, so ID Ransomware relies on the uploaded ransom note. You most likely have a file called something like "!Decrypt-All-Files-nujdlwi.html".

 

You can view the support topic here to see if your symptoms match: http://www.bleepingcomputer.com/forums/t/542564/ctb-locker-ransomware-support-and-help-topic-decryptallfilestxt/


logo-25.pngID Ransomware - Identify What Ransomware Encrypted Your Files [Support Topic]

ransomnotecleaner-25.png RansomNoteCleaner - Remove Ransom Notes Left Behind [Support Topic]

cryptosearch-25.pngCryptoSearch - Find Files Encrypted by Ransomware [Support Topic]

If I have helped you and you wish to support my ransomware fighting, you may support me here.


#3 test0r

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Posted 06 June 2016 - 09:39 AM

It looks like CTB locker but there is NO decrypting instructions in any form, neither on desktop nor c:\ or any other folder 

 

im trying to investigate on the windows registry/windows event loggers to find any clue

 

maybe it is a missconfigured version of the CTB? 



#4 cybercynic

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Posted 06 June 2016 - 12:59 PM

Has your AV quarrantined some files, perhaps?


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#5 quietman7

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Posted 06 June 2016 - 08:09 PM

CTB-Locker will leave files (ransom notes) with names like DecryptAllFiles.txt and DecryptAllFiles_<user name>.txt that contains ransom instructions but the newer variants do not always leave a ransom note if the malware fails to change the background like it typically does. An AllFilesAreLocked_<user name>.bmp image file may be left in the My Documents folder which contains further instructions on how to pay the ransom.

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 noted by Demonslay335. To avoid unnecessary confusion, this topic is closed.

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