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HELP identify ransomware (extension: not_available)


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#1 woji

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Posted 19 November 2016 - 02:48 PM

Hello,

please can you help me with identify rannsomware with extension NOT_AVAILABLE ? 

 

Eventually i can upload encrypted and original file...

thx Martin



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#2 quietman7

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Posted 19 November 2016 - 06:08 PM

More information is needed.

 

Are you saying the extension appended to your encrypted data is .NOT_AVAILABLE (i.e. original filename.NOT_AVAILABLE)?

Or are you saying there is no available extension. I ask because CryptoWall, CrypMic, DMA Locker, Microsoft Decryptor (CryptXXX), PClock, TeslaCrypt v4.0, CryptoHost, MotoxLocker, KawaiiLocker do not append an obvious extension to the end of encrypted filenames like many other ransomware infections. Instead some of them typically add a unique hex pattern identifier in the header of every encrypted file so the ransomware can identify the file as one it encrypted. The best way to identify the different ransomwares that do not append an extension is the ransom note or at least information related to the email address used by the cyber-criminals.

You can submit samples of encrypted files and ransom notes to ID Ransomware for assistance with identification and confirmation. This is a service that helps identify what ransomware may have encrypted your files and then attempts to direct you to an appropriate support topic where you can seek further assistance. Uploading both encrypted files and ransom notes together provides a more positive match and helps to avoid false detections.


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#3 woji

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Posted 20 November 2016 - 06:00 AM

Thanks for reply. 

Extension is NOT_AVAILABLE (example: test.pdf.not_available).

I checked files on ID Ransomware. notes are identified as ApocalypseVM, but encrypted file can not be determined. 

I tested two decryptor for this ransomware, but without result. (Decryptor from Emisoft and from AVG).

Both files are here..packed with ZIP -> https://www.sendspace.com/file/m2xns6



#4 quietman7

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Posted 20 November 2016 - 08:00 AM

I'm not sure which Emsisoft decrypter you tried but Fabian Wosar these two.

The cyber-criminals have fixed flaws and updated their malware so newer variants of this ransomware may not be decryptable.

There is an ongoing discussion in this topic where you 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
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