Tohj Virus – Details
Tohj is a harmful software application functioning as common ransomware. Michael Gillespie, the popular virus researcher, first found this new name in the DJVU ransomware family.
Tohj was created for the sole purpose to encrypt all popular file types. Logically, as quickly as the encryption is effectively achieved, the users are not able to get access to them. Tohj virus adds its own “.tohj” to all the encrypted data. For example, the file “price_list.xls”, once crypted by Tohj, will be titled as “price_list.xls.tohj”. Once the encryption is achieved, Tohj puts its own special text file (_readme.txt) into all the folders that save the encrypted files.
The message mentioned by document requesting the random os very similar to the notices given by other ransomware risks coming from the DJVU family. The caution essentially shows that the information has been encrypted and the only service to get access to it is to use a distinct standalone key. Regretfully, this declaration is absolutely real.
The method to secure the files used by Tohj is not totally researched. However, there is no doubt that each computer owner might be provided a special decryption key, which is absolutely unique. It is very hard to recover the data without the proper type in place.
“Don’t worry, you can return all your files!”, from _readme.txt message:
One more peculiarity of the Tohj infection is that the users are not able to get access to the key. The decrypting key is hosted on a special server under the complete control by the crooks who have introduced the Tohj ransomware into the world wide web. In order to acquire the key and restore the crucial data, the users are told to connect with the frauds via e-mail or by telegram and to pay the ransom in the quantity of $980.
The message also says that individuals need to contact the Tohj authors within 72 hours upon the moment of the data encryption. The alert indicates that by doing so individuals will get a 50% discount, therefore, the ransom amount drops down to $490.
Tohj modified your information, however, it might not be the only danger on your PC. Plus, the ransomware may be concealed deep in the system. To identify and erase the danger entirely, we advise you to refer to the help of GridinSoft Anti-Malware tool.
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No matter what the amount of the ransom is, we highly recommend that you do not pay the ransom. There is no guarantee that these online criminals will keep their guarantees, 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. Thus, paying ransom frequently does not result in an effective recovery. So, the users may merely lose their money for absolutely nothing.
Similarly, we prompt you not to get in touch with the scams as they instruct. Do not move loan into their wallets. There are no applications that might break the Tohj ransomware or restore the information at no cost. Therefore, the only correct decision is to restore the data from possible backups (if readily available).
Virus Summary
| Name | Tohj Ransomware |
| File Extension | tohj |
| 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 .tohj extension to all the files modified by it. |
| Distribution Method | Adware bundles and software cracks |
| Similar Infections | Lokas, Besub, Nusar |
| Tohj Removal Tool | GridinSoft Anti-Malware |
| Tohj Decryption Tool | Emsisoft Djvu Decryptor |
Do not forget that the Web is now loaded with infections similar to the Tohj ransomware. For example, this particular danger is generally similar to Brusaf and other ransomware-type infections. These harmful utilities have actually been established in order to encrypt the crucial data and express the demand for the users to pay the ransom. All these infections use the identical algorithm to produce the particular key for successful files decryption.
Unless the Tohj ransomware is still under the development procedure or has got some concealed bugs, it is not possible to restore the data by hand. Thus, the only working service to prevent the loss of your important information is to frequently maintain updated backups of all your crucial files.
Another important piece of advice is to save the backups on unique storage not linked to your main device. For example, you may store it on the USB Flash Drive, or some external hard disk drive, or by using the cloud data storage services. Keeping the backups on your routine drive is extremely risky, considering that the backup may likewise be secured by the Tohj ransomware.
Leakages for the Tohj ransomware attack.
Tohj utilizes many paths to infiltrate the vulnerable computers. It is not specific what particular method was used in your case, nevertheless, the intrusion may happen by means of the following channels:
- bundling with third-party programs, primarily free software;
- spam e-mails from the unknown senders;
- sites supplying complimentary hosting;
- P2P (peer-to-peer) torrent software.
There are times when the Tohj virus might disguise itself as some authentic application, for example, through the deceptive signals requiring setup of some software upgrade. This is the most common trick utilized by the scams to inject the Tohj ransomware files into the system. This way users partly take part in its setup, without plainly understanding the threat.
Moreover, the frauds may send out unsolicited spam email with difficult signals motivating the people to open suspicious attachments or click some download links, for example, those encouraging the people to open particular pictures, text files, tax files and other info.
No doubt, opening these files or clicking the harmful links may basically damage the system. Fake Media Player update alerts may lead to the Tohj ransomware seepage. Likewise, downloading the broken software application might furthermore consist of the ransomware installer. The last but not the least, installation of Tohj may occur through some Trojan horses that might be set up stealthily into the system and without the user’s direct permission and even permission.
Avoiding the Tohj virus attack.
Obviously, there is no outright guarantee that your computer system will be always without any malware attacks, however, we want to share some beneficial suggestions with you to make it safer. Make certain to pay very very close attention while browsing the web and specifically while getting cost-free programs. Do not open any dubious e-mail accessories, particularly if the sender is not known to you.
Do not forget that certain freeware installer may also contain some other extra apps in the bundle. These additional applications might be extremely harmful. It is of utmost value to keep your anti-virus software and your operating system in basic to be always appropriately upgraded.
It is quite logical that downloading cracked apps is illegal, however, furthermore, such unauthorized apps usage might likewise bring serious damage to your computer. Hence, do not download any cracked programs. Plus, the truth that your current anti-virus did not safeguard the system from the Tohj ransomware is a great reason for you to reconsider 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 Tohj 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 “.tohj” extension added by the virus:”
Use GridinSoft Anti-Malware to remove Tohj ransomware from your computer
1.Download GridinSoft Anti-Malware.
You can get 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 tohj 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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