My all data is encrypted and format infected file as .nppp and do not decrypt in offlinr key

[Muhammad Rizwan 0]

Rec 2020-02-26 11;16;43

[Kevin Zoll 308]

Hello @Muhammad Rizwan,

 

Welcome to the Emsisoft Support Forums.

 

General Notes With Regards to STOP/DJVU

 

1. If the decryption tool tells you the files cannot be decrypted, then they cannot be decrypted.  That is not an error message.
2. If your files have an Offline ID and were not decrypted it is because we do not have the corresponding decryption key in our database.  Do not ask us when we plan on adding it, because we do not have it or a way for generating your decryption key.
3. Our database does include some Offline ID decryption keys for newer variants of the STOP/DJVU family of ransomware.  If the files were encrypted with an Offline ID that matches one of the decryption keys in our database, then our decryption tool will be able to decrypt those files that were encrypted using that key.
4. New Variant STOP/DJVU utilizes both the RSA and Salsa20 encryption algorithms.  Both RSA and Salsa20 are considered secure encryption methods and are unbreakable using current technologies. They are not reversible, cannot be cracked, and we are not able to generate a decryption key.  So do not send us encrypted files thinking we can recover your decryption key, we can't.

 

Also, see https://support.emsisoft.com/topic/32045-about-the-stopdjvu-decrypter/ for more information on the STOP/DJVU decryption tool.