STOP Ransomware is file-encrypting ransomware-type virus, that encrypts user files using AES (режим CFB) encryption algorithm. DJVU Ransomware is identified as variation of STOP Ransomware. Virus appends .djvu, .udjvu or .djvuu extension to encrypted files, what can embarrass some users, as this is popular file format for e-books and storing scanned documents. When encryption is finished DJVU Ransomware places _openme.txt text file with following content in the folders with affected files and on the desktop.
Paradise Ransomware is file-encryption virus, that encrypts user’s files using RSA-1024 encryption algorithm. Latest versions of this threat append .VACv2, .CORP or .xyz extensions. Previously, Paradise Ransomware used .paradise, .sell, .ransom, .logger, .prt and .b29. Among all variations, only last one can be decrypted. Ransomware has many similarities with Dharma Ransomware, as it has very look-a-like design and uses similar patterns for file modifications. Authors of the virus offer e-mail to contact them for decryption negotiation: email@example.com. They demand several thousand dollars for decryption, that have to be paid in BitCoins. It is also stated, that 1-3 useless files can be decrypted for free as a prove, that decryption is possible. However, malefactors cannot be trusted. Instead, we recommend you to try instructions below to restore files encrypted by Paradise Ransomware.
Tfude Ransomware, which is actually next generation of STOP Ransomware appeared in January of 2019. This virus encrypts user’s essential files, such as documents, photos, databases, music with AES encryption and adds .tfude (later started to append .tfudet and .tfudeq) extensions to affected files. This ransomware is almost identical to .puma Ransomware and .djvu Ransomware, and belongs to the same authors, because it uses the same e-mail adresses (firstname.lastname@example.org and email@example.com) and same BitCoin wallets. Tfude variation of STOP Ransomware displays fake Windows Update pop-up during the process of file encryption. From the file above we can understand, that hackers offer 50% discount for decryption, if ransom amount is paid within 72 hours. However, this is just a trick to encourage people to pay the ransom. Often hackers don’t send decryptor after this. We recommend you to remove executables of STOP Ransomware and save those encrypted files to the time, when decryption tool appears. Before that, you can try manual instructions described in this article to restore files.
This article contains information about version of STOP Ransomware that adds .pdff, .tro or .rumba extensions to encrypted files, and creates _openme.txt ransom note file on the desktop and in the folders with affected files. This variation first appeared in January, 2019 and almost identical to previous .puma Ransomware and .djvu Ransomware. Ransomware virus still uses AES encryption algorithm and still demands ransom in BitCoins for decryption. All three varieties belong to one author, because they are using the same e-mail addresses for communication: firstname.lastname@example.org and email@example.com. From the file above we can learn, that hackers offer 50% discount for decryption, if ransom amount is paid within 72 hours. However, from our experience, this is just a trick to encourage person to pay the ransom. Often malefactors don’t send decryptor after this. We recommend, that you remove active infection of STOP Ransomware and preserve your files until decryption tool appears. Until that time, you can try manual instructions on this page to attempt restoring encrypted files.
GandCrab v5.1 Ransomware is fifth generation of very dangerous and harmful GandCrab Ransomware. It is yet unknown what type of encryption algorithm it uses. Virus assigns randomly generated identification code to each particular user. It looks like set of 8 letters and GandCrab v5.1 Ransomware uses it to create .[random-letters] extension and ransom note filename will look like this: [random-letters]-DECRYPT.txt and [random-letters]-DECRYPT.html. The contents of this ransom note is slightly different from previous versions of this malware. Unfortunately, files encrypted by GandCrab v5.1 Ransomware are currently not decryptable. However, as some of the previous versions had decryptor from BitDefender, we will provide download link for this tool below. There is a possibility, that they will update the program to decrypt latest instances of GandCrab Ransomware. We also provide general manual instructions, that can, in many cases, help you restore some or even all encrypted files. All these methods are worth trying.