What is YobaCrypt ransomware? And how does it implement its attack?
YobaCrypt ransomware is one of the latest ransomware threats discovered lately. This new file-encrypting virus is also known as “Ferrlock ransomware” and it uses the AES encryption algorithm in locking files in a computer and appends a “.yoba” extension to every file it encrypts.
Once it compromises a targeted machine, it will implement a series of modifications by starting to initiate a connection to a remote Command and Control server where it downloads its other components. After the malicious components are downloaded, it places them on various system folders with the aim of launching or repressing system processes. After controlling system processes, it uses an information gathering module which obtains data from the computer. The data obtained is processed to create a unique ID for the compromised computer and is then used for the stealth protection module. This module is the one that bypasses any security programs installed in the system. This crypto-virus also has the ability to obtain administrator permissions, language and regional settings, read and write permissions, obtain system and network information as well as steal files.
After all the system modification, YobaCrypt ransomware will start the encryption process using the AES cipher. Following file encryption, it adds the “.yoba” extension to each one of the compromised files and opens the “.!=How_recovery_files=!.txt” file that contains the following ransom note:
Do you want decrypt files?
Send us this code:
<CODE> SB3UqKR9yuBZn5Pxn4bU4m0tt8P7KfBfv + wosJHUjvd5xA51PDFeoyUaJB1CDxdIrO6XNrmyV6Ph / n / NSkUP14wgK / pd6UYAXY + AnWFoaCY7VpWEpP + 8LrcCOHUkdznBbdfws7I7Ne4n1SvoVIIW // 8ovYUGJeOVu56fnUCxdDZ768s1G91SvMHJdHlbe / tfoxm9QKipVnI6ucufjNJ8pSb3mX + K3VqbJ + O9cnnM6LUarDDgZdiKtbQPUEzkJ4abkAnw6QavdxS4pqmkWZVQrBJXIvvL6GV7wQ + ldoUA9BAxM + 3 + soR7KLHpHCt8jOHVRsBVgSnB6Qx10afnIXLPvg == </ CODE>
Email: [email protected]”
How does YobaCrypt ransomware spread online?
YobaCrypt ransomware spreads the web using several techniques. For one, it might spread as a fake software update or a malicious download. It could also spread by hacking into vulnerable RDP configuration as well as exploit kits. Aside from these methods, crooks also often use malicious spam email campaigns where they attach a file with malicious scripts used to install YobaCrypt ransomware in the system. This is why you have to always be careful in what you download online especially if the file came from a questionable source.
Eliminate YobaCrypt ransomware and all of its malicious components by using the removal guide provided below.
Step 1: First, tap the Ctrl + Shift + Esc keys in your keyboard to open the Task Manager.
Step 2: Under the Task Manager, go to the Processes tab and look for any suspicious-looking process that takes up most of your CPU’s resources and is most likely related to YobaCrypt 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 YobaCrypt 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 YobaCrypt ransomware’s malicious components such as ferrlock.pdb, !=How_recovery_files=!.txt, newjunior.exe and [random].exe and other suspicious files, then delete all of them.
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\
Step 11: Delete the registry keys and sub-keys created by YobaCrypt 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 YobaCrypt 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 YobaCrypt 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:
- Turn on your computer. If it’s already on, you have to reboot it.
- 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.
- To navigate the Advanced Option use the arrow keys and select Safe Mode with Networking then hit
- Windows will now load the Safe Mode with Networking.
- Press and hold both R key and Windows key.
- If done correctly, the Windows Run Box will show up.
- Type in the URL address, [product-url] in the Run dialog box and then tap Enter or click OK.
- After that, it will download the program. Wait for the download to finish and then open the launcher to install the program.
- Once the installation process is completed, run [product-code] to perform a full system scan.
- After the scan is completed click the “Fix, Clean & Optimize Now” button.