DATAH Ransomware (datahelper@onionmail.org)

Written by Brendan Smith

The Datah virus belongs to the Makop ransomware family. Malware of this type encrypts all user’s data on the PC (images, documents, excel sheets, music, videos, etc) and adds its extra extension to every file, creating the +README-WARNING+.txt files in every folder with the encrypted files.

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What is Datah virus?

☝️ Datah is a Makop family ransomware infection.

The renaming will be executed according to this pattern: .datah. As a part of encryption, a file named, for instance, “report.docx” will be renamed to “report.docx.[2AF20FA3].[datahelper@onionmail.org].datah”.

In each folder with the encoded files, a +README-WARNING+.txt file will appear. It is a ransom money memo. Therein you can find information on the ways of paying the ransom and some other information. The ransom note usually contains a description of how to buy the decryption tool from the racketeers. You can get this decryptor after contacting datahelper@onionmail.org by email. That is how they do it.

Datah Summary:

NameDatah Virus
Ransomware family1Makop ransomware
Extension.datah
Ransomware note+README-WARNING+.txt
Contactdatahelper@onionmail.org
DetectionNSIS/TrojanDownloader.Agent.OBN Virus Removal, Ransom:Win32/Conti.ZCI!dha Virus Removal, Trojan.BulzPMF.S19392755 Virus Removal
SymptomsYour files (photos, videos, documents) have a .datah extension and you can’t open them.
Fix ToolSee If Your System Has Been Affected by Datah virus

The +README-WARNING+.txt document accompanying the Datah malware provides the following discouraging information:

::: Greetings :::

Little FAQ:

.1.
Q: Whats Happen?
A: Your files have been encrypted. The file structure was not damaged, we did everything possible so that this could not happen.

.2.
Q: How to recover files?
A: If you wish to decrypt your files you will need to pay us.

.3.
Q: What about guarantees?
A: Its just a business. We absolutely do not care about you and your deals, except getting benefits. If we do not do our work and liabilities - nobody will cooperate with us. Its not in our interests.
To check the ability of returning files, you can send to us any 2 files with SIMPLE extensions(jpg,xls,doc, etc... not databases!) and low sizes(max 1 mb), we will decrypt them and send back to you. That is our guarantee.

.4.
Q: How to contact with you?
A: You can write us to our mailbox: datahelper@onionmail.org
Or you can contact us via TOX: B99CB0C13B44E2A1AEBAEB28E70371D6E3DB35DA801721930B53B0E787433270665DA610BAB0
You can download TOX: hxxps://qtox.github.io/

.5.
Q: How will the decryption process proceed after payment?
A: After payment we will send to you our scanner-decoder program and detailed instructions for use. With this program you will be able to decrypt all your encrypted files.

.6.
Q: If I don t want to pay bad people like you?
A: If you will not cooperate with our service - for us, its does not matter. But you will lose your time and data, cause only we have the private key. In practice - time is much more valuable than money.

:::BEWARE:::
DON\'T try to change encrypted files by yourself!
If you will try to use any third party software for restoring your data or antivirus solutions - please make a backup for all encrypted files!
Any changes in encrypted files may entail damage of the private key and, as result, the loss all data.

In the picture below, you can see what a folder with files encrypted by the Datah looks like. Each filename has the “.datah” extension appended to it.

Datah Virus - encrypted .datah files

An example of encrypted .datah files.

How did my machine catch Datah ransomware?

There are many possible ways of ransomware injection.

There are currently three most popular methods for hackers to have the Datah virus settled in your digital environment. These are email spam, Trojan injection and peer-to-peer networks.

  • If you open your mailbox and see letters that look like familiar notifications from utility services providers, postal agencies like FedEx, Internet providers, and whatnot, but whose “from” field is strange to you, beware of opening those letters. They are most likely to have a ransomware item enclosed in them. So it is even more dangerous to download any attachments that come with emails like these.
  • Another option for ransom hunters is a Trojan virus model. A Trojan is an object that infiltrates into your machine pretending to be something different. For example, you download an installer for some program you need or an update for some service. However, what is unpacked reveals itself a harmful program that corrupts your data. Since the installation wizard can have any name and any icon, you’d better be sure that you can trust the source of the files you’re downloading. The best way is to use the software developers’ official websites.
  • As for the peer-to-peer file transfer protocols like torrents or eMule, the danger is that they are even more trust-based than the rest of the Internet. You can never guess what you download until you get it. Our suggestion is that you use trustworthy resources. Also, it is a good idea to scan the folder containing the downloaded items with the antivirus as soon as the downloading is finished.

How do I get rid of ransomware?

It is crucial to note that besides encrypting your files, the Datah virus will most likely deploy Vidar Stealer on your machine to get access to credentials to different accounts (including cryptocurrency wallets). That spyware can derive your credentials from your browser’s auto-filling cardfile.

Remove Datah with Gridinsoft Anti-Malware

We have also been using this software on our systems ever since, and it has always been successful in detecting viruses. It has blocked the most common Ransomware as shown from our tests with the software, and we assure you that it can remove Datah as well as other malware hiding on your computer.

Gridinsoft Anti-Malware - Main Screen

To use Gridinsoft for remove malicious threats, follow the steps below:

1. Begin by downloading Gridinsoft Anti-Malware, accessible via the blue button below or directly from the official website gridinsoft.com.

2.Once the Gridinsoft setup file (setup-gridinsoft-fix.exe) is downloaded, execute it by clicking on the file.

setup-gridinsoft-fix.exe

3.Follow the installation setup wizard's instructions diligently.

Gridinsoft Setup Wizard

4. Access the "Scan Tab" on the application's start screen and launch a comprehensive "Full Scan" to examine your entire computer. This inclusive scan encompasses the memory, startup items, the registry, services, drivers, and all files, ensuring that it detects malware hidden in all possible locations.

Scan for Datah Ransomware

Be patient, as the scan duration depends on the number of files and your computer's hardware capabilities. Use this time to relax or attend to other tasks.

5. Upon completion, Anti-Malware will present a detailed report containing all the detected malicious items and threats on your PC.

The Datah was Found

6. Select all the identified items from the report and confidently click the "Clean Now" button. This action will safely remove the malicious files from your computer, transferring them to the secure quarantine zone of the anti-malware program to prevent any further harmful actions.

The Datah has been removed

8. If prompted, restart your computer to finalize the full system scan procedure. This step is crucial to ensure thorough removal of any remaining threats. After the restart, Gridinsoft Anti-Malware will open and display a message confirming the completion of the scan.

Remember Gridinsoft offers a 6-day free trial. This means you can take advantage of the trial period at no cost to experience the full benefits of the software and prevent any future malware infections on your system. Embrace this opportunity to fortify your computer's security without any financial commitment.

Trojan Killer for “Datah” removal on locked PC

In situations where it becomes impossible to download antivirus applications directly onto the infected computer due to malware blocking access to websites, an alternative solution is to utilize the Trojan Killer application.

Trojan Killer - Main View

There is a really little number of security tools that are able to be set up on the USB drives, and antiviruses that can do so in most cases require to obtain quite an expensive license. For this instance, I can recommend you to use another solution of GridinSoft - Trojan Killer Portable. It has a 14-days cost-free trial mode that offers the entire features of the paid version. This term will definitely be 100% enough to wipe malware out.

Trojan Killer is a valuable tool in your cybersecurity arsenal, helping you to effectively remove malware from infected computers. Now, we will walk you through the process of using Trojan Killer from a USB flash drive to scan and remove malware on an infected PC. Remember, always obtain permission to scan and remove malware from a computer that you do not own.

Step 1: Download & Install Trojan Killer on a Clean Computer:

1. Go to the official GridinSoft website (gridinsoft.com) and download Trojan Killer to a computer that is not infected.

Download Trojan Killer

2. Insert a USB flash drive into this computer.

3. Install Trojan Killer to the "removable drive" following the on-screen instructions.

Install Trojan Killer to Removable Drive

4. Once the installation is complete, launch Trojan Killer.

Step 2: Update Signature Databases:

5. After launching Trojan Killer, ensure that your computer is connected to the Internet.

6. Click "Update" icon to download the latest signature databases, which will ensure the tool can detect the most recent threats.

Click Update Button

Step 3: Scan the Infected PC:

7. Safely eject the USB flash drive from the clean computer.

8. Boot the infected computer to the Safe Mode.

9. Insert the USB flash drive.

10. Run tk.exe

11. Once the program is open, click on "Full Scan" to begin the malware scanning process.

Searching Datah Virus

Step 4: Remove Found Threats:

12. After the scan is complete, Trojan Killer will display a list of detected threats.

Searching Datah Finished

13. Click on "Cure PC!" to remove the identified malware from the infected PC.

14. Follow any additional on-screen prompts to complete the removal process.

Restart needed

Step 5: Restart Your Computer:

15. Once the threats are removed, click on "Restart PC" to reboot your computer.

16. Remove the USB flash drive from the infected computer.

Congratulations on effectively removing Datah and the concealed threats from your computer! You can now have peace of mind, knowing that they won't resurface again. Thanks to Gridinsoft's capabilities and commitment to cybersecurity, your system is now protected.

Sometimes criminals would decode few of your files so you know that they indeed have the decryption program. Since Datah virus is a relatively recent ransomware, safety measures developers have not yet found a method to undo its work. Nevertheless, the decoding tools are constantly upgraded, so the solution may soon be available.

Of course, if the evildoers succeed in encoding victim’s essential data, the desperate person will most likely fulfill their demands. However, paying to criminals does not necessarily mean that you’re getting your blocked information back. It is still risky. After obtaining the money, the racketeers may send a wrong decryption code to the victim. There were reports of criminals just disappearing after getting the ransom without even writing back.

The optimal safety measure against ransomware is to have a system restore point or the copies of your critical files in the cloud storage or at least on an external drive. Of course, that might be insufficient. The most crucial thing could be that one you were working upon when it all happened. Nevertheless, it is something. It is also advisable to scan your PC for viruses with the antivirus program after the OS is rolled back.

Datah is not the only ransomware of its kind, since there are other specimens of ransomware out there that act in the same manner. For instance, Unkno, Kaaa, Uajs, and some others. The two major differences between them and the Datah are the ransom amount and the method of encryption. The rest is the same: files become inaccessible, their extensions altered, ransom notes are created in each directory containing encrypted files.

Some fortunate people were able to decrypt the blocked files with the aid of the free tools provided by anti-ransomware developers. Sometimes the racketeers mistakenly send the decryption code to the wronged in the ransom readme. Such an extraordinary fail allows the user to restore the files. But naturally, one should never expect such a chance. Make no mistake, ransomware is a bandits’ technology to pull the money out of their victims.

How сan I avoid ransomware infiltration?

Datah ransomware has no endless power, neither does any similar malware.

You can defend your computer from ransomware attack within several easy steps:

  • Ignore any emails from unknown mailboxes with unknown addresses, or with content that has nothing to do with something you are waiting for (can you win in a lottery without participating in it?). In case the email subject is likely something you are waiting for, scrutinize all elements of the dubious email carefully. A hoax email will surely have mistakes.
  • Avoid using cracked or unknown software. Trojans are often shared as a part of cracked products, most likely under the guise of “patch” which prevents the license check. But dubious programs are difficult to distinguish from reliable software, as trojans sometimes have the functionality you seek. Try to find information on this program on the anti-malware message boards, but the optimal way is not to use such software.
  • And to be sure about the safety of the objects you downloaded, scan them with GridinSoft Anti-Malware. This program will be a powerful shield for your personal computer.

FAQ

🤔 Are the “.datah” files accessible?

There’s no way to do it, unless the files “.datah” files are decrypted.

🤔 The encrypted files are very important to me. How can I decrypt them quickly?

Hopefully, you have made a copy of those important files. If not, there is still a function of System Restore but it needs a Restore Point to be previously saved. All other solutions require time.

🤔 If GridinSoft deletes the Datah malware, will it also delete my files that were encrypted?

Of course not. The encrypted files are not harmful, so they won’t be deleted.

GridinSoft Anti-Malware will delete the viruses from your PC. The ransomware that has infected your PC is most likely still functional and running scans periodically to arrest any new files you might create on your PC after the attack. As it has been mentioned above, the Datah malware does not come alone. It installs backdoors and keyloggers that can take your account passwords by trespass and provide criminals with easy access to your system in the future.

🤔 What actions should I take if the Datah malware has blocked my computer and I can’t get the activation key.

In such an unfortunate situation, you need to have a flash memory drive with a previously installed Trojan Killer. Use Safe Mode to perform the procedure. You see, the ransomware starts automatically as the system launches and encodes any new files created or brought into your system. To block this function – use Safe Mode, which allows only the essential applications to run upon system start. Consider reading our manual on running Windows in Safe Mode.

🤔 And what should I do now?

Many of the encoded files might still be at your disposal

  • If you sent or received your critical files through email, you could still download them from your online mailbox.
  • You might have shared images or videos with your friends or family members. Simply ask them to post those images back to you.
  • If you have initially got any of your files from the Internet, you can try downloading them again.
  • Your messengers, social media pages, and cloud drives might have all those files as well.
  • Maybe you still have the needed files on your old computer, a notebook, cellphone, flash memory, etc.

HINT: You can use file recovery utilities2 to retrieve your lost information since ransomware blocks the copies of your files, removing the original ones. In the tutorial below, you can learn how to use PhotoRec for such a recovery, but remember: you won’t be able to do it before you kill the ransomware itself with an antivirus program.

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References

  1. My files are encrypted by ransomware, what should I do now?
  2. Here are Top 10 Data Recovery Software Of 2024.

About the author

Brendan Smith

I'm Brendan Smith, a passionate journalist, researcher, and web content developer. With a keen interest in computer technology and security, I specialize in delivering high-quality content that educates and empowers readers in navigating the digital landscape.

With a focus on computer technology and security, I am committed to sharing my knowledge and insights to help individuals and organizations protect themselves in the digital age. My expertise in cybersecurity principles, data privacy, and best practices allows me to provide practical tips and advice that readers can implement to enhance their online security.

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