![]() File must not contain valuable information. You can send one of your encrypted file from your PC and we decrypt it for free.īut we can decrypt only 1 file for free. This software will decrypt all your encrypted files. The only method of recovering files is to purchase decrypt tool and unique key for you. The full contents of the file ‘_readme.txt’:ĭon’t worry, you can return all your files!Īll your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The authors of the virus offer to decrypt one Dewd file for free and thus prove the possibility that the files can be decrypted. If the victim is ready to pay the ransom quickly, within 72 hours, the size of the ransom is halved to $490. Attackers demand a ransom of $980 in exchange for a key and a decryptor. Criminals report that all files on the computer are encrypted, and only the key and decryptor can decrypt these files and restore access to their contents. The contents of this file are a ransom demand message. Screenshot of the contents of ‘_readme.txt’ file (ransom demand message) An example of the contents of this file is given below. The criminals place such a file in every directory where there is at least one encrypted file. This message is in a file called ‘_readme.txt’. This is reported by the authors of Dewd virus, in a message that they leave on the infected computer. To decrypt it, you must use the key and the decryptor. sbĪs we said, Dewd file is an encrypted file. Thus, the following types of files can be encrypted: The virus only does not encrypt files in the OS system directories, files with the extension. No matter where the file is located, on the internal drive or network storage, this file will be encrypted. Each file on the victim’s computer becomes the target of Dewd virus. This means the following, if the file was named ‘document.docx’, then after it is encrypted, it will be called ‘’. Each file that has been affected by the virus is renamed in such a way that the ‘.dewd’ extension is appended to its old name on the right. This gives hope that victims of Dewd virus will be able to decrypt files without paying ransom.Ī file with extension ‘.dewd’ is a file that has been encrypted by the Dewd ransomware and therefore the contents of this file are locked. The offline key is fixed and can be determined by security researchers. The main difference between an online key and an offline key is that the online key is in the hands of criminals and cannot be determined. If the connection to its command server has not been established, then the ransomware uses a fixed key (so-called ‘offline key’). If this succeeds, the ransomware sends data about the infected computer to the server, and from it receives a key (so-called ‘online key’) necessary for file encryption. After that, Dewd virus tries to connect to its command server. Upon execution, the ransomware creates a directory in the Windows system directory, copies itself to this directory, changes some OS settings, and also collects information about the infected computer. Typically, ransomware like Dewd can infect a computer when a user runs and installs the infected program as well as cracked games, freeware, key generators and other similar software. Dewd virus sneaks into the system without any visible symptoms, which is why users notice that their computer is infected too late, when the files are already encrypted. It is created to encrypt files located on the victim’s computer, and then extort money to decrypt them. Screenshot of files encrypted by Dewd virus (‘.dewd’ file extension) QUICK LINKSĭewd ransomware is a new variant of the STOP (Djvu) ransomware.
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