Hudf – Ransomware
Hudf is a destructive software application functioning as common ransomware. Michael Gillespie, the well-known malware researcher, very first found this new name in the DJVU ransomware family.
Hudf was created for the sole function to encrypt all popular file types. Rationally, as quickly as the encryption is successfully achieved, the users are not able to get access to them. Hudf virus includes its own “.hudf” to all the encrypted files. For instance, the file “price_list.xls”, when crypted by Hudf, will be entitled as “price_list.xls.hudf”. As soon as the file encryption is achieved, Hudf puts its own unique text document (_readme.txt) into all the folders that save the encrypted files.
The message stated by _readme.txt requesting for the random os extremely comparable to the alerts offered by other ransomware dangers belonging to the DJVU family. The warning basically shows that the information has been secured and the only solution to get access to it is to use a distinct standalone key. Regretfully, this statement is definitely true.
The method to encrypt the files used by Hudf is not entirely researched. However, there is no doubt that each computer owner might be released a special decryption key, which is absolutely special. It is very difficult to recuperate the data without the suitable type in place.
“Don’t worry, you can return all your files!”, from _readme.txt message:
One more peculiarity of the Hudf infection is that the users are unable to get access to the key. The decrypting key is hosted on an unique server under the total control by the scoundrels who have released the Hudf ransomware into the internet. In order to acquire the key and bring back the essential 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 likewise states that individuals must get in touch with the Hudf authors within 72 hours upon the moment of the data encryption. The alert shows that by doing so the people will get a 50% discount rate, therefore, the ransom quantity falls to $490.
Hudf encrypted your data, nevertheless, it may not be the only hazard on your computer. Plus, the ransomware may be hidden deep in the system. To detect and delete the hazard totally, we recommend you to describe the assistance of GridinSoft Anti-Malware tool.
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No matter what the amount of the ransom is, we highly advise that you do not pay the ransom. There is no guarantee that these online scoundrels will keep their promises, so they might not care at all what the victims feel about the encryption, even when the amount of the ransom is gotten into their accounts. Hence, paying ransom typically does not lead to a successful recovery. So, the users might merely lose their money for nothing.
Likewise, we advise you not to get in touch with the frauds as they instruct. Do not move money into their wallets. There are no applications that might break the Hudf ransomware or restore the information at no charge. For that reason, the only proper decision is to bring back the information from possible backups (if available).
Virus Summary
| Name | Hudf Ransomware |
| File Extension | hudf |
| 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 .hudf extension to all the files modified by it. |
| Distribution Method | Adware bundles and software cracks |
| Similar Infections | Lokas, Besub, Nusar |
| Hudf Removal Tool | GridinSoft Anti-Malware |
| Hudf Decryption Tool | Emsisoft Djvu Decryptor |
Do not forget that the Web is now loaded with infections comparable to the Hudf virus. For example, this particular risk is essentially identical to Brusaf and other ransomware-type infections. These damaging utilities have been established in order to encrypt the important data and express the need for the users to pay the ransom. All these infections use the identical algorithm to produce the specific key for successful data decryption.
Unless the Hudf ransomware is still under the development procedure or has actually got some concealed bugs, it is not possible to restore the data manually. Therefore, the only working solution to prevent the loss of your important data is to regularly maintain up-to-date backups of all your crucial files.
Another crucial piece of recommendations is to keep the backups on special storage not linked to your primary computer. For example, you might keep it on the USB Flash Drive, or some external hard disk, or by using the cloud data storage services. Keeping the backups on your regular drive is really risky, because the backup may likewise be encrypted by the Hudf .
Leakages for the Hudf ransomware attack.
Hudf uses many courses to infiltrate the vulnerable computer systems. It is not certain what specific method was utilized in your case, however, the invasion might occur via the following channels:
- bundling with third-party programs, generally free software;
- spam e-mails from the unidentified senders;
- sites providing complimentary hosting;
- P2P (peer-to-peer) torrent downloads.
There are times when the Hudf ransomware may disguise itself as some authentic application, for instance, through the deceptive signals requiring installation of some software application update. This is the most common trick used by the frauds to inject the Hudf ransomware files into the system. By doing this users partially take part in its setup, without clearly comprehending the risk.
Additionally, the scams might send unsolicited spam email with challenging signals motivating individuals to open dubious attachments or click on some download links, for instance, those encouraging individuals to open particular photos, text files, tax documents and other information.
No doubt, opening these files or clicking the malicious links might essentially harm the system. Fake Acrobat Reader upgrade alerts may result in the Hudf ransomware seepage. Similarly, downloading the split software application might furthermore include the ransomware installer. The last however not the least, setup of Hudf may take place through some Trojan horses that might be installed stealthily into the system and without the user’s direct permission or perhaps permission.
Avoiding the Hudf virus injection.
Of course, there is no absolute warranty that your computer system will be always without any malware attacks, however, we wish to share some helpful suggestions with you to make it more secure. Make sure to pay very close attention while browsing the web and particularly while getting cost-free programs. Do not open any dubious e-mail accessories, especially if the sender is not understood to you.
Do not forget that certain freeware installer may likewise contain some other extra apps in the package. These extra applications may be very destructive. It is of utmost value to keep your anti-virus software and your operating system in general to be always correctly updated.
It is rather rational that downloading pirated apps is prohibited, nevertheless, in addition, such unauthorized software application use might likewise bring major damage to your PC. Thus, do not download any split programs. Plus, the truth that your existing anti-virus did not safeguard the system from the Hudf ransomware is a good reason for you to reevaluate your choices and change to another program that can render the safeguarding functions on a much better level.
Below please find the quotation from the Hudf 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 “.hudf” extension added by the virus:”
Use GridinSoft Anti-Malware to remove Hudf 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 hudf 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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