Cdaz Virus Ransomware
Cdaz is a harmful software application functioning as common ransomware. Michael Gillespie, the well-known malware researcher, first found this new name in the DJVU ransomware family.
Cdaz was created for the sole purpose to encrypt all popular file types. Realistically, as quickly as the file encryption is successfully accomplished, the users are unable to get access to them. Cdaz ransomware includes its own “.cdaz” to all the encrypted files. For example, the file “price_list.xls”, once modified by Cdaz, will be titled as “price_list.xls.cdaz”. When the encryption is achieved, Cdaz puts its own unique text document (_readme.txt) into all the folders that keep the encrypted files.
The alert mentioned by text file requesting for the random os very similar to the notices offered by other ransomware dangers coming from the DJVU family. The caution basically indicates that the data has been secured and the only solution to get access to it is to use a distinct standalone key. Regretfully, this statement is absolutely true.
The technique to secure the files utilized by Cdaz is not completely looked into. However, there is no doubt that each computer system owner might be released a special decryption key, which is definitely special. It is extremely tough to recover the data without the appropriate type in place.
“Don’t worry, you can return all your files!”, from _readme.txt message:
One more peculiarity of the Cdaz 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 complete control by the criminals who have introduced the Cdaz ransomware into the world wide web. In order to get the key and bring back the essential information, the users are informed to connect with the scams by means of e-mail or by telegram and to pay the ransom in the amount of $980.
The message likewise states that the people must call the Cdaz authors within 72 hours upon the minute of the data encryption. The alert indicates that by doing so individuals will obtain a 50% discount, therefore, the ransom quantity drops down to $490.
Cdaz encrypted your information, nevertheless, it might not be the only threat on your computer. Plus, the ransomware may be hidden deep in the system. To discover and erase the risk totally, we advise you to describe the aid of GridinSoft Anti-Malware .
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No matter what the quantity of the ransom is, we strongly recommend that you do not pay the ransom. There is no assurance that these online crooks 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 received into their accounts. Hence, paying ransom typically does not result in an effective recovery. So, the users may just lose their money for nothing.
Likewise, we advise you not to contact the frauds as they advise. Do not transfer money into their wallets. There are no applications that could crack the Cdaz virus or restore the information for free. For that reason, the only right choice is to bring back the information from possible backups (if offered).
Virus Summary
| Name | Cdaz Ransomware |
| File Extension | cdaz |
| 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 .cdaz extension to all the files modified by it. |
| Distribution Method | Adware bundles and software cracks |
| Similar Infections | Lokas, Besub, Nusar |
| Cdaz Removal Tool | GridinSoft Anti-Malware |
| Cdaz Decryption Tool | Emsisoft Djvu Decryptor |
Do not forget that the Web is now full of infections similar to the Cdaz ransomware. For instance, this particular hazard is generally identical to Brusaf and other ransomware-type infections. These destructive energies have been developed in order to encrypt the essential data and express the need for the users to pay the ransom. All these infections use the identical algorithm to create the specific key for effective files decryption.
Unless the Cdaz ransomware is still under the advancement procedure or has actually got some concealed bugs, it is not possible to restore the data manually. Therefore, the only working option to prevent the loss of your important data is to regularly maintain up-to-date backups of all your crucial documents.
Another essential piece of suggestions is to save the backups on unique storage not linked to your primary device. For instance, you may keep it on the USB Flash Drive, or some external disk drive, or by using the cloud data storage services. Keeping the backups on your system drive is really dangerous, considering that the backup might likewise be secured by the Cdaz infection.
Leaks for the Cdaz ransomware attack.
Cdaz utilizes many paths to penetrate the vulnerable computers. It is not certain what particular technique was used in your case, nevertheless, the intrusion might take place by means of the following channels:
- bundling with third-party programs, generally free software;
- spam emails from the unidentified senders;
- sites offering free hosting;
- P2P (peer-to-peer) torrent software.
There are times when the Cdaz may disguise itself as some real application, for instance, through the deceptive informs requiring setup of some software upgrade. This is the most typical technique utilized by the frauds to inject the Cdaz ransomware files into the system. This way users partially participate in its setup, without clearly understanding the threat.
Additionally, the scams may send out unsolicited spam email with challenging signals motivating the people to open suspicious accessories or click some download links, for example, those encouraging the people to open particular pictures, text files, tax documents and other info.
No doubt, opening these files or clicking the harmful links might basically harm the system. Fake Adobe Flash Player upgrade notifications may cause the Cdaz ransomware seepage. Likewise, downloading the cracked software may in addition include the ransomware installer. The last but not the least, setup of Cdaz might happen through some Trojan horses that might be set up stealthily into the system and without the user’s direct permission or perhaps authorization.
Avoiding the Cdaz virus attack.
Naturally, there is no outright guarantee that your computer will be always without any malware attacks, however, we would like to share some helpful tips with you to make it much safer. Ensure to pay really attention while browsing the web and especially while downloading cost-free programs. Do not open any suspicious e-mail attachments, particularly if the sender is not understood to you.
Do not forget that specific freeware installer may likewise consist of some other additional apps in the package. These additional applications may be extremely destructive. It is of utmost significance to keep your anti-virus software application and your operating system in basic to be always correctly updated.
It is rather sensible that downloading cracked apps is unlawful, however, additionally, such unapproved programs usage may likewise bring major damage to your PC. Thus, do not download any cracked programs. Plus, the fact that your present anti-virus did not protect the system from the Cdaz ransomware is an excellent factor for you to reevaluate your choices and switch to another program that can render the securing functions on a far better level.
Below please find the quotation from the Cdaz 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 “.cdaz” extension added by the virus:”
Use GridinSoft Anti-Malware to remove Cdaz 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 cdaz files
You can get 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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