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We have analyzed thousands of ransomware-type programs Kxde, Mxf1bd, Soviet Locker, and Wdlo are merely some examples of our latest finds. Hence, we highly recommend keeping backups in multiple separate locations (e.g., unplugged storage devices, remote servers, etc.) - to avoid permanent data loss. In these cases, the sole solution is recovering them from a backup, if one was created prior and is stored elsewhere. However, removal will not restore already affected files. Removing ransomware from an operating system will prevent it from encrypting more data. Therefore, we strongly advise against ever paying cyber criminals and thus supporting their illegal activities. Most encryptions by the malicious programs within this classification - cannot be decrypted without the attackers' involvement.įurthermore, despite meeting the ransom demands - victims frequently do not receive the promised decryption keys and/or software. While DeezNuts Crypter is decryptable, that is particularly rare for ransomware. The note is concluded with disjointed lyrics of the English singer Rick Astley's song "Never Gonna Give You Up", which is used in the Internet phenomenon called Rickrolling. It also repeats the demanded payment is zero. It states that this malware was made intentionally weak, and the decryption key is actually one character - however, it is three characters ("123").
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The opened pastebin website insults the victim and talks about the ransomware. The decryption key is " 123" (without the quotes). It informs victims that their data has been encrypted and states that the decryption key will cost them zero in Bitcoin cryptocurrency.Īs mentioned in the introduction, this version of DeezNuts Crypter is decryptable (that might change if any improved variants are released in the future). The text presented in the pop-up window is unusual for ransomware. Screenshot of files encrypted by DeezNuts Crypter ransomware: Fortunately, DeezNuts Crypter is decryptable the decryption key is " 123" (sans quotation marks). We have concluded, that it might have been developed for the cyber criminals' amusement or released for testing purposes. The text presented in these messages makes it clear that this ransomware's goal is not to collect ransoms. Once this process was completed, DeezNuts Crypter displayed a pop-up window and opened a pastebin (text storage) webpage on the browser. For example, a file initially titled " 1.jpg" appeared as " 1.deeznuts-crypter.jpg", " 2.png" as " 2.deeznuts-crypter.png", and so on. deeznuts-crypter" between the original filename and extension. Our research team found it while inspecting new submissions to VirusTotal.Īfter being launched on our test machine, this ransomware encrypted files and renamed them by inserting ". DeezNuts Crypter is a piece of malicious software classified as ransomware.