Tuow – Ransomware
Tuow is a destructive software working as typical ransomware. Michael Gillespie, the popular virus researcher, first discovered this new name in the DJVU ransomware family.
Tuow was created for the sole function to encrypt all popular file types. Logically, as soon as the encryption is effectively achieved, the users are unable to get access to them. Tuow ransomware adds its own “.tuow” to all the encrypted files. For instance, the file “price_list.xls”, when modified by Tuow, will be titled as “price_list.xls.tuow”. As soon as the file encryption is achieved, Tuow puts its own special text document (_readme.txt) into all the folders that store the encrypted files.
The message specified by document requesting the random os really similar to the alerts provided by other ransomware hazards belonging to the DJVU family. The caution basically indicates that the information has been secured and the only solution to get access to it is to use a special standalone key. Regretfully, this declaration is definitely real.
The technique to encrypt the files utilized by Tuow is not completely researched. However, there is no doubt that each computer system owner may be issued an unique decryption key, which is absolutely special. It is exceptionally tough to recover the information without the appropriate type in location.
“Don’t worry, you can return all your files!”, from text file message:
One more peculiarity of the Tuow virus is that the users are not able to get access to the key. The decrypting key is hosted on a special server under the total control by the crooks who have actually launched the Tuow ransomware into the world wide web. In order to get the key and bring back the crucial data, the users are informed to get in touch with the frauds via email or by telegram and to pay the ransom in the amount of $980.
The message likewise says that the people ought to get in touch with the Tuow authors within 72 hours upon the moment of the information encryption. The alert indicates that by doing so individuals will acquire a 50% discount rate, therefore, the ransom amount falls to $490.
Tuow crypted your files, however, it might not be the only threat on your PC. Plus, the ransomware may be concealed deep in the system. To discover and erase the risk completely, we advise you to describe the assistance of GridinSoft Anti-Malware .
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No matter what the amount of the ransom is, we strongly encourage that you do not pay the ransom. There is no warranty that these online scoundrels will keep their pledges, so they may not care at all what the victims feel about the file encryption, even when the amount of the ransom is gotten into their accounts. For this reason, paying ransom typically does not result in an effective healing. So, the users might simply lose their money for nothing.
Likewise, we prompt you not to call the frauds as they instruct. Do not transfer cash into their wallets. There are no applications that might break the Tuow ransomware or bring back the data for free. For that reason, the only correct decision is to restore the information from possible backups (if available).
Virus Summary
| Name | Tuow Ransomware |
| File Extension | tuow |
| Type | Ransomware |
| Family | DJVU |
| Short Description | The ransomware encrypts all the data stored on your system and requires a ransom to be paid on your part supposedly to recover your important files. |
| Symptoms | File encryption by the ransomware is performed by means of the AES-256 algorithm (CFB mode) encryption algorithm. Once the encryption is completed, the ransomware adds its special .tuow extension to all the files modified by it. |
| Distribution Method | Adware bundles and software cracks |
| Similar Infections | Lokas, Besub, Nusar |
| Tuow Removal Tool | GridinSoft Anti-Malware |
| Tuow Decryption Tool | Emsisoft Djvu Decryptor |
Do not forget that the Web is now full of infections comparable to the Tuow ransomware. For instance, this particular danger is essentially similar to Brusaf and other ransomware-type infections. These destructive utilities have been developed in order to secure the essential data and reveal the need for the users to pay the ransom. All these infections utilize the identical algorithm to generate the particular key for successful files decryption.
Unless the Tuow ransomware is still under the advancement process or has actually got some hidden bugs, it is not possible to restore the information manually. Hence, the only working option to avoid the loss of your crucial data is to routinely keep up-to-date backups of all your important files.
Another important piece of recommendations is to save the backups on unique storage not linked to your main device. For instance, you may save it on the USB Flash Drive, or some external disk drive, or by using the cloud data storage services. Keeping the backups on your routine drive is really dangerous, because the backup may also be encrypted by the Tuow .
Leaks for the Tuow ransomware attack.
Tuow utilizes numerous courses to penetrate the vulnerable computer systems. It is not particular what particular technique was used in your case, however, the invasion might take place via the following channels:
- bundling with third-party programs, generally free software;
- spam e-mails from the unidentified senders;
- sites providing free hosting;
- P2P (peer-to-peer) torrent downloads.
There are times when the Tuow virus may camouflage itself as some real application, for example, through the deceptive notifies demanding setup of some software application update. This is the most common technique used by the frauds to inject the Tuow infection files into the system. In this manner users partially take part in its installation, without plainly comprehending the risk.
Additionally, the frauds may send out unsolicited spam e-mail with difficult signals encouraging the people to open suspicious accessories or click some download links, for example, those encouraging individuals to open certain pictures, text files, tax documents and other info.
No doubt, opening these files or clicking on the malicious links may basically harm the system. Fake Acrobat Reader upgrade notices may result in the Tuow ransomware seepage. Similarly, downloading the split software application may in addition consist of the ransomware installer. The last however not the least, installation of Tuow might occur through some Trojan horses that may be installed stealthily into the system and without the user’s direct permission or even permission.
Avoiding the Tuow virus injection.
Of course, there is no outright guarantee that your computer system will be constantly devoid of any malware attacks, nevertheless, we wish to share some helpful tips with you to make it more secure. Ensure to pay very attention while searching the web and especially while downloading cost-free programs. Do not open any dubious e-mail attachments, specifically if the sender is not known to you.
Do not forget that certain freeware installer may likewise include some other extra apps in the package. These additional applications might be extremely destructive. It is of utmost value to keep your anti-virus software and your os in general to be always correctly upgraded.
It is quite logical that downloading cracked software is prohibited, however, additionally, such unapproved programs use might likewise bring severe damage to your computer. Thus, do not download any split programs. Plus, the truth that your present anti-virus did not safeguard the system from the Tuow ransomware is an excellent factor for you to reassess your options and change to another program that can render the securing functions on a much better level.
Below please find the quotation from the Tuow text file:
ATTENTION! Don't worry, you can return all your files! All your files like photos, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-2P5WrE5b9f Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: restorealldata@firemail.cc Reserve e-mail address to contact us: gorentos@bitmessage.ch Our Telegram account: @datarestore
Screenshot of files with “.tuow” extension added by the virus:”
Use GridinSoft Anti-Malware to remove Tuow ransomware from your computer
1.Download GridinSoft Anti-Malware.
You can download GridinSoft Anti-Malware by clicking the button below:
2. Double-click on the setup file.
When setup file has finished downloading, double-click on the setup-antimalware-ag.exe file to install GridinSoft Anti-Malware on your computer.
An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.
3. Press Install button for run GridinSoft Anti-Malware.
3.Once installed, GridinSoft Anti-Malware will automatically run.
4. Wait for the GridinSoft Anti-Malware scan to complete.
GridinSoft Anti-Malware will automatically start scanning your computer for Win Speedup 2018 and other malicious programs. This process can take a 20-30 minutes, so we suggest you periodically check on the status of the scan process.
5. Click on “Clean Now”.
When the scan has completed, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.
Use Emsisoft Decryptor for restore tuow files
You can download Emsisoft Decryptor by clicking the button below:
- Run the decryptor as an administrator. The license terms will show up, which you have to agree to by clicking the “Yes” button.
- Once the license terms are accepted, the primary decryptor user interface opens.
- By default, the decryptor will pre-populate the locations to decrypt with the currently connected drives and network drives. Additional locations can be added using the Add” button.
- Decryptors typically offer various options depending on the particular malware family. The available options are located in the Options tab and can be enabled or disabled there. You can find a detailed list of the available Options below.
- After you have added all the locations you want to decrypt to the list, click the “Decrypt” button to start the decryption process. The screen will switch to a status view, informing you about the current process and decryption status of your files
- The decryptor will inform you once the decryption process is finished. If you require the report for your personal records, you can save it by clicking the “Save log” button. You can also copy it straight to your clipboard to paste it into emails or forum posts if you are asked to.
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