What is Roldat ransomware? And how does it execute its attack?

Roldat ransomware is yet another one of the latest variants of the STOP/Djvu ransomware group. This time, it uses a “.roldat” extension in marking the files it encrypts. Like its predecessors, it is designed to restrict access to valuable files in an infected computer by encrypting them. It then attempts to extort money from its victims in exchange for the “decrypt software”. Apart from the extension it uses, there are no other changes in this new variant as it still follows the same attack execution as other variants of Djvu ransomware.
The instant Roldat ransomware manages to infect a system, it will carry out a sequence of attacks. It may also feature different modules that are activated in the system. One of these modules is used to gather information about the infected PC and send them to its remote C&C server. Some of these modules are also used to modify the Windows Registry to set Roldat ransomware for automatic startup every time the PC boots. After it changes the system settings, it applies a sophisticated encryption algorithm in encrypting files and once the encryption is done, it will add the .roldat suffix to each one of the encrypted file indicating that the files are locked and can no longer be accessed. It also places its ransom note named “_readme.txt” on every folder where there is an encrypted file. The ransom note contains a message that states:
“ATTENTION!
Don’t worry my friend, 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:
hxxps://we.tl/t-oEUEuysYiZ
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:
[email protected]
Reserve e-mail address to contact us:
[email protected]
Support Telegram account:
@datarestore
Your personal ID:
-”
How does Roldat ransomware proliferate?
The malicious payload of Roldat ransomware could reach your computer when you open an obfuscated attachment from your emails. This obfuscated attachment may be in the form of a document, an executable file, a ZIP file, etc. That’s why it’s best if you check the contents of the email as well as its sender before you open any attachments.
Obliterate Roldat ransomware from your infected computer with the help of the removal guide provided below.
Step 1: First, you have to stop the malicious process of Roldat ransomware by opening the Task Manager. To do that, simply tap Ctrl + Shift + Esc keys on your keyboard.
Step 2: Under the Task Manager, switch to the Processes tab and find a process named Wmiprvse.exe as well as any suspicious-looking process that takes up most of your CPU’s resources and is most likely related to Roldat ransomware.

Step 3: After that, close the Task Manager.
Step 4: Tap Win + R, type in appwiz.cpl and click OK or tap Enter to open Programs and Features under Control Panel.
Step 5: Under the list of installed programs, look for Roldat ransomware or anything similar and then uninstall it.

Step 6: Next, close Control Panel and tap Win + E keys to launch File Explorer.
Step 7: Navigate to the following locations below and look for Roldat ransomware’s malicious components such as “_readme.txt”, and [random].exe, as well as other suspicious files, then delete all of them.

  • %TEMP%
  • %WINDIR%\System32\Tasks
  • %APPDATA%\Microsoft\Windows\Templates\
  • %USERPROFILE%\Downloads
  • %USERPROFILE%\Desktop

Step 8: Close the File Explorer.
Before you proceed to the next steps below, make sure that you are tech savvy enough to the point where you know exactly how to use and navigate your computer’s Registry. Keep in mind that any changes you make will highly impact your computer. To save you the trouble and time, you can just use [product-name], this system tool is proven to be safe and excellent enough that hackers won’t be able to hack into it. But if you can manage Windows Registry well, then by all means go on to the next steps.
Step 9: Tap Win + R to open Run and then type in regedit in the field and tap enter to pull up Windows Registry.

Step 10: Navigate to the following path:

  • HKEY_CURRENT_USER\Control Panel\Desktop\
  • HKEY_USERS\.DEFAULT\Control Panel\Desktop\
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce

 Step 11: Delete the registry keys and sub-keys created by Roldat ransomware.
Step 12: Close the Registry Editor and empty the Recycle Bin.
Try to recover your encrypted files using the Shadow Volume copies
Restoring your encrypted files using Windows’ Previous Versions feature will only be effective if Roldat ransomware hasn’t deleted the shadow copies of your files. But still, this is one of the best and free methods there is, so it’s definitely worth a shot.
To restore the encrypted file, right-click on it and select Properties, a new window will pop-up, then proceed to Previous Versions. It will load the file’s previous version before it was modified. After it loads, select any of the previous versions displayed on the list like the one in the illustration below. And then click the Restore button.

Complete the removal process of Roldat ransomware by using a trusted and reliable program like [product-name]. Refer to the following guidelines on how to use it.
Perform a full system scan using [product-code]. To do so, follow these steps:

  1. Turn on your computer. If it’s already on, you have to reboot it.
  2. After that, the BIOS screen will be displayed, but if Windows pops up instead, reboot your computer and try again. Once you’re on the BIOS screen, repeat pressing F8, by doing so the Advanced Option shows up.

  1. To navigate the Advanced Option use the arrow keys and select Safe Mode with Networking then hit
  2. Windows will now load the Safe Mode with Networking.
  3. Press and hold both R key and Windows key.

  1. If done correctly, the Windows Run Box will show up.
  2. Type in the URL address, [product-url] in the Run dialog box and then tap Enter or click OK.
  3. After that, it will download the program. Wait for the download to finish and then open the launcher to install the program.
  4. Once the installation process is completed, run [product-code] to perform a full system scan.

  1. After the scan is completed click the “Fix, Clean & Optimize Now” button.

 
 

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