How to remove Adhubllka ransomware from your operating system?

Also Known As: Adhubllka virus
Distribution: Low
Damage level: Severe

Adhubllka ransomware removal instructions

What is Adhubllka?

Adhubllka is the tile of a malicious program, classified as ransomware. Systems infected with this malware have their data encrypted and receive ransom demands for appropriate decryption tools/software. Its discovery is credited to S!Ri. As Adhubllka encrypts, it renames files by adding the ".ADHUBLLKA" extension. For example, a file originally titled something like "1.jpg" would appear as "1.jpg.ADHUBLLKA" - following encryption, and so on for all of the affected files. After this process is complete, a text file "read_me.txt" containing the ransom note - is created on the desktop.

The text file informs victims that their data has been encrypted and reassures them that it can be recovered. The compromised files (e.g. documents, photos, databases, etc.) have been encrypted with strongest encryption and unique key. The message states that the only way to restore them - is to purchase decryption tools/software and key (individually generated for each victim) from the cyber criminals behind Adhubllka ransomware. The price of these tools is left unmentioned, however supposedly a 50 percent discount is available, should users establish contact with the malware's developers within the first 72 hours. To receive further instructions, victims must write to the criminals via the email address provided. The note also alerts users that attempting to decrypt their files with third party software will render them undecryptable, i.e. damage them beyond repair. It is true that in most cases of ransomware attacks, decryption is impossible without the interference of individuals responsible. It might be possible, if the malicious program is still in development and/or has major bugs (flaws). Regardless, it is strongly advised against communicating with and/or meeting the demands of cyber criminals. They are not to be trusted, as there are no guarantees that they will hold their end of the bargain. Often, despite paying - users do not receive the promised decryption tools/software. Therefore, not only does their data remain encrypted and worthless, but they experience significant financial losses as well. Eliminating Adhubllka from the operating system will prevent it from further encryptions. Unfortunately, removal will not restore already affected files. The sole solution is recovering them form a backup, if one was made prior to the attack and was stored in a different location.

Screenshot of a message encouraging users to pay a ransom to decrypt their compromised data:

Adhubllka decrypt instructions (read_me.txt)

Ransomware is designed to encrypt data and demand payment for its decryption. SivoHorsedealOledAdair are a couple examples of malicious software belonging to this class. There are two main differences between them - the cryptographic algorithm they use (symmetric or asymmetric) and the ransom size. The demanded payments usually vary between three-digit and four-digit sums (in USD). Cyber criminals tend to prefer digital currencies (mostly cryptocurrencies), due to transactions of them being difficult/impossible to trace. To ensure data integrity, it is recommended to keep backups in unplugged storage devices and/or remote servers. It is best to store multiple backups in several separate locations.

How did ransomware infect my computer?

High-risk infections (ransomware and other malware) typically originate from virulent files send during spam campaigns, trojans, illegal activation tools ("cracks"), fake updaters and untrustworthy download sources. "Spam campaign" is a term used to define deceptive emails sent on a mass scale. These letters are typically presented as "official", "important", "priority" or otherwise urgent mail. They have infectious files attached to them (or contain links leading to such). The file formats vary (e.g. archive and executable files, PDF and Microsoft Office documents, JavaScript, etc.); when they are opened - the infection process begins. Trojans are a type of malware that has of various heinous abilities, which can include the ability to cause chain infections. Illegal activation ("cracking") tools can download/install malicious software, rather than activate licensed product. Fake updaters infect systems by exploiting weaknesses of outdated programs and/or simply install malware instead of the updates. Untrustworthy download channels like: unofficial and free file-hosting websites, Peer-to-Peer sharing networks (BitTorrent, eMule, Gnutella, etc.) and other third party downloaders - can offer malicious software, disguised as ordinary content and/or bundled (packed together) with it.

Threat Summary:
Name Adhubllka virus
Threat Type Ransomware, Crypto Virus, Files locker
Encrypted Files Extension .ADHUBLLKA
Ransom Demanding Message read_me.txt
Cyber Criminal Contact
Detection Names Avast (Win32:Trojan-gen), BitDefender (Gen:Trojan.Heur.FU.cqW@aygBXYd), ESET-NOD32 (A Variant Of Win32/Filecoder.DeathRansom.B), Kaspersky (Trojan.Win32.Zudochka.dva), Full List Of Detections (VirusTotal)
Symptoms Cannot open files stored on your computer, previously functional files now have a different extension (for example, my.docx.locked). A ransom demand message is displayed on your desktop. Cyber criminals demand payment of a ransom (usually in bitcoins) to unlock your files.
Distribution methods Infected email attachments (macros), torrent websites, malicious ads.
Damage All files are encrypted and cannot be opened without paying a ransom. Additional password-stealing trojans and malware infections can be installed together with a ransomware infection.
Malware Removal (Windows)

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How to protect yourself from ransomware infections?

Dubious and/or irrelevant emails should not be opened. Any attachments (or links) found in suspicious mail - must never be opened, as they are a potential source of an infection. All downloads should be done through official and verified channels. The same extends to software activation and updating, which should only be done with tools/functions provided by legitimate developers. Illegal activation tools ("cracks") and third party updaters are advised against use, due to high risk of malware installation. It is paramount to device/user safety to have a dependable anti-virus/anti-spyware suite installed. These programs are to be kept up-to-date, used to perform regular system scans and removal of detected threats/issues. If your computer is already infected with Adhubllka, we recommend running a scan with Malwarebytes for Windows to automatically eliminate this ransomware.

Text presented in Adhubllka ransomware's text file ("read_me.txt"):

Don't worry, you can return all your files!
All your files documents, photos, databases 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.
Don't try to use third-party decrypt tools because it will destroy your files.
Discount 50available if you contact us first 72 hours.
To get this software you need write on our e-mail: 

Screenshot of files encrypted by Adhubllka (".ADHUBLLKA" extension):

Files encrypted by Adhubllka ransomware (.ADHUBLLKA extension)

Adhubllka ransomware removal:

Instant automatic malware removal: Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Malwarebytes is a professional automatic malware removal tool that is recommended to get rid of malware. Download it by clicking the button below:
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Quick menu:

Step 1

Windows XP and Windows 7 users: Start your computer in Safe Mode. Click Start, click Shut Down, click Restart, click OK. During your computer start process, press the F8 key on your keyboard multiple times until you see the Windows Advanced Option menu, and then select Safe Mode with Networking from the list.

Safe Mode with Networking

Video showing how to start Windows 7 in "Safe Mode with Networking":

Windows 8 users: Start Windows 8 is Safe Mode with Networking - Go to Windows 8 Start Screen, type Advanced, in the search results select Settings. Click Advanced startup options, in the opened "General PC Settings" window, select Advanced startup. Click the "Restart now" button. Your computer will now restart into the "Advanced Startup options menu". Click the "Troubleshoot" button, and then click the "Advanced options" button. In the advanced option screen, click "Startup settings". Click the "Restart" button. Your PC will restart into the Startup Settings screen. Press F5 to boot in Safe Mode with Networking.

Windows 8 Safe Mode with networking

Video showing how to start Windows 8 in "Safe Mode with Networking":

Windows 10 users: Click the Windows logo and select the Power icon. In the opened menu click "Restart" while holding "Shift" button on your keyboard. In the "choose an option" window click on the "Troubleshoot", next select "Advanced options". In the advanced options menu select "Startup Settings" and click on the "Restart" button. In the following window you should click the "F5" button on your keyboard. This will restart your operating system in safe mode with networking.

windows 10 safe mode with networking

Video showing how to start Windows 10 in "Safe Mode with Networking":

Step 2

Log in to the account infected with the Adhubllka virus. Start your Internet browser and download a legitimate anti-spyware program. Update the anti-spyware software and start a full system scan. Remove all entries detected.

If you cannot start your computer in Safe Mode with Networking, try performing a System Restore.

Video showing how to remove ransomware virus using "Safe Mode with Command Prompt" and "System Restore":

1. During your computer start process, press the F8 key on your keyboard multiple times until the Windows Advanced Options menu appears, and then select Safe Mode with Command Prompt from the list and press ENTER.

Boot your computer in Safe Mode with Command Prompt

2. When Command Prompt mode loads, enter the following line: cd restore and press ENTER.

system restore using command prompt type cd restore

3. Next, type this line: rstrui.exe and press ENTER.

system restore using command prompt rstrui.exe

4. In the opened window, click "Next".

restore system files and settings

5. Select one of the available Restore Points and click "Next" (this will restore your computer system to an earlier time and date, prior to the Adhubllka ransomware virus infiltrating your PC).

select a restore point

6. In the opened window, click "Yes".

run system restore

7. After restoring your computer to a previous date, download and scan your PC with recommended malware removal software to eliminate any remaining Adhubllka ransomware files.

To restore individual files encrypted by this ransomware, try using Windows Previous Versions feature. This method is only effective if the System Restore function was enabled on an infected operating system. Note that some variants of Adhubllka are known to remove Shadow Volume Copies of the files, so this method may not work on all computers.

To restore a file, right-click over it, go into Properties, and select the Previous Versions tab. If the relevant file has a Restore Point, select it and click the "Restore" button.

Restoring files encrypted by CryptoDefense

If you cannot start your computer in Safe Mode with Networking (or with Command Prompt), boot your computer using a rescue disk. Some variants of ransomware disable Safe Mode making its removal complicated. For this step, you require access to another computer.

To regain control of the files encrypted by Adhubllka, you can also try using a program called Shadow Explorer. More information on how to use this program is available here.

shadow explorer screenshot

To protect your computer from file encryption ransomware such as this, use reputable antivirus and anti-spyware programs. As an extra protection method, you can use programs called HitmanPro.Alert and EasySync CryptoMonitor, which artificially implant group policy objects into the registry to block rogue programs such as Adhubllka ransomware.

Note that Windows 10 Fall Creators Update includes a "Controlled Folder Access" feature that blocks ransomware attempts to encrypt your files. By default, this feature automatically protects files stored in the Documents, Pictures, Videos, Music, Favorites, and Desktop folders.

Controll Folder Access

Windows 10 users should install this update to protect their data from ransomware attacks. Here is more information on how to get this update and add an additional protection layer from ransomware infections.

HitmanPro.Alert CryptoGuard - detects encryption of files and neutralises any attempts without need for user-intervention:

hitmanproalert ransomware prevention application

Malwarebytes Anti-Ransomware Beta uses advanced proactive technology that monitors ransomware activity and terminates it immediately - before reaching users' files:

malwarebytes anti-ransomware

  • The best way to avoid damage from ransomware infections is to maintain regular up-to-date backups. More information on online backup solutions and data recovery software Here.

Other tools known to remove Adhubllka ransomware:

About the author:

Tomas Meskauskas

Tomas Meskauskas - expert security researcher, professional malware analyst.

I am passionate about computer security and technology. I have an experience of over 10 years working in various companies related to computer technical issue solving and Internet security. I have been working as an author and editor for since 2010. Follow me on Twitter and LinkedIn to stay informed about the latest online security threats. Contact Tomas Meskauskas.

PCrisk security portal is brought by a company RCS LT. Joined forces of security researchers help educate computer users about the latest online security threats. More information about the company RCS LT.

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Malware activity

Global malware activity level today:

Medium threat activity

Increased attack rate of infections detected within the last 24 hours.

QR Code
Adhubllka virus QR code
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