Oxva – General Info
Oxva is a destructive software functioning as common ransomware. Michael Gillespie, the popular malware researcher, first discovered this new name in the DJVU ransomware family.
Oxva was developed for the sole purpose to encrypt all popular file types. Rationally, as soon as the encryption is successfully accomplished, the users are unable to get access to them. Oxva ransomware adds its own “.oxva” to all the encrypted data. For instance, the file “price_list.xls”, once modified by Oxva, will be titled as “price_list.xls.oxva”. Once the file encryption is achieved, Oxva puts its own distinct text document (_readme.txt) into all the folders that save the encrypted files.
The alert mentioned by document asking for the random os extremely comparable to the notifications provided by other ransomware dangers coming from the DJVU family. The caution generally indicates that the information has been secured and the only solution to get access to it is to use a distinct standalone key. Regretfully, this declaration is absolutely true.
The method to secure the files used by Oxva is not entirely looked into. However, there is no doubt that each computer system owner might be issued an unique decryption key, which is absolutely unique. It is exceptionally tough to recuperate the information without the suitable key in place.
“Don’t worry, you can return all your files!”, from _readme.txt message:
One more peculiarity of the Oxva ransomware 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 scoundrels who have actually released the Oxva infection into the world wide web. In order to acquire the key and bring back the important data, the users are informed to contact the frauds via e-mail or by telegram and to pay the ransom in the amount of $980.
The message likewise says that individuals ought to get in touch with the Oxva authors within 72 hours upon the minute of the data encryption. The alert suggests that by doing so individuals will obtain a 50% discount, therefore, the ransom quantity falls to $490.
Oxva crypted your information, nevertheless, it might not be the only hazard on your computer. Plus, the ransomware may be concealed deep in the system. To spot and erase the danger totally, we advise you to refer to the assistance of GridinSoft Anti-Malware tool.
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No matter what the amount of the ransom is, we strongly advise that you do not pay the ransom. There is no warranty that these online criminals will keep their pledges, so they might not care at all what the victims feel about the encryption, even when the quantity of the ransom is received into their accounts. For this reason, paying ransom frequently does not result in an effective healing. So, the users might just lose their money for nothing.
Similarly, we urge you not to contact the scams as they instruct. Do not move loan into their wallets. There are no applications that could break the Oxva virus or bring back the data at no cost. For that reason, the only correct decision is to bring back the information from possible backups (if available).
Virus Summary
| Name | Oxva Ransomware |
| File Extension | oxva |
| 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 .oxva extension to all the files modified by it. |
| Distribution Method | Adware bundles and software cracks |
| Similar Infections | Lokas, Besub, Nusar |
| Oxva Removal Tool | GridinSoft Anti-Malware |
| Oxva Decryption Tool | Emsisoft Djvu Decryptor |
Do not forget that the Internet is now full of infections similar to the Oxva virus. For instance, this particular danger is essentially similar to Brusaf and other ransomware-type infections. These destructive energies have actually 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 similar algorithm to create the particular key for successful information decryption.
Unless the Oxva ransomware is still under the advancement procedure or has got some concealed bugs, it is not possible to restore the information manually. Thus, the only working service to avoid the loss of your essential information is to regularly maintain current backups of all your essential data.
Another important piece of guidance is to save the backups on unique storage not linked to your main computer. For instance, you may store it on the USB Flash Drive, or some external hard disk, or by using the cloud data storage services. Keeping the backups on your routine drive is extremely risky, given that the backup may likewise be secured by the Oxva .
Leaks for the Oxva ransomware attack.
Oxva uses numerous paths to penetrate the susceptible computer systems. It is not certain what particular approach was used in your case, however, the invasion may happen via the following channels:
- bundling with third-party programs, mainly free software;
- spam emails from the unidentified senders;
- websites offering free hosting;
- P2P (peer-to-peer) torrent software.
There are times when the Oxva might camouflage itself as some authentic application, for example, through the misleading notifies demanding installation of some software application update. This is the most common trick utilized by the scams to inject the Oxva infection files into the system. In this manner users partly take part in its installation, without plainly understanding the danger.
Moreover, the scams may send out unsolicited spam e-mail with tricky signals encouraging the people to open dubious accessories or click on some download links, for instance, those motivating individuals to open certain pictures, text files, tax documents and other information.
No doubt, opening these files or clicking the harmful links might basically damage the system. Fake Adobe Flash Player update notices may result in the Oxva ransomware infiltration. Likewise, downloading the broken software may furthermore consist of the ransomware installer. The last but not the least, installation of Oxva might occur through some Trojan horses that might be installed stealthily into the system and without the user’s direct authorization or perhaps authorization.
Preventing the Oxva ransom virus injection.
Of course, there is no outright assurance that your computer system will be constantly free of any malware attacks, nevertheless, we wish to share some useful suggestions with you to make it much safer. Make sure to pay very very close attention while searching the web and especially while getting cost-free programs. Do not open any suspicious email attachments, particularly if the sender is not understood to you.
Do not forget that specific freeware installer may also contain some other additional apps in the bundle. These extra applications might be really damaging. It is of utmost value to keep your anti-virus software and your os in general to be constantly appropriately upgraded.
It is quite rational that downloading pirated programs is illegal, however, in addition, such unapproved apps usage may also bring severe damage to your system. For this reason, do not download any cracked programs. Plus, the fact that your present anti-virus did not protect the system from the Oxva ransomware is a great reason for you to reconsider your choices and change to another program that can render the safeguarding functions on a far better level.
Below please find the quotation from the Oxva 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 “.oxva” extension added by the virus:”
Use GridinSoft Anti-Malware to remove Oxva 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 oxva 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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