TROLL ransomware removal instructions
What is TROLL?
Discovered by Michael Gillespie, TROLL is one of many programs classified as ransomware - malicious software that denies access to files by encryption. Cyber criminals use TROLL to force people to pay ransoms. Furthermore, it renames all encrypted files by adding the ".TROLL" extension to each filename. For example, "1.jpg" becomes "1.jpg.TROLL". Information about how to decrypt data is provided in the "HOW TO BACK YOUR FILES.txt" text file. This file is stored in all folders that contain locked (encrypted) files.
The "HOW TO BACK YOUR FILES.txt" ransom message states that, to decrypt files, people are required to use a decryption tool. To obtain this, victims are instructed to send an email message to email@example.com, which must include the appointed personal ID. Additionally, it can also include a few files that TROLL's developers will supposedly decrypt free of charge. According to the ransom message, these cyber criminals will then reply with instructions about how to pay for the decryption tool, which will be sent after the payment. Victims are urged not to try to decrypt files by other means, since this might damage them. Unfortunately, only TROLL's developers can provide any decryption keys/tools, however, cyber criminals cannot be trusted - they receive ransom payments and then ignore victims without sending any decryption tools/keys. Note that encryption caused by ransomware is impossible to 'crack'. The only way to decrypt files is to use the correct tools and keys. Since there is no way to obtain these free of charge, the best option is to recover files using a backup (if data was backed up prior to the ransomware infection).
Screenshot of a message encouraging users to pay a ransom to decrypt their compromised data:
There are many other ransomware-type programs online including, for example, Amigo X-3, Non, and Neras. They might be developed by different cyber criminals, however, most encrypt data and create ransom messages. The most common differences are cost of decryption and cryptography algorithm (symmetric or asymmetric) that was used to lock data. Generally, victims cannot decrypt their files without the correct tool or key, unless the program is still in development or contains bugs/flaws. To prevent data loss caused by programs of this type, have data backed-up and store all backups on unplugged storage devices or remote servers (such as Cloud).
How did ransomware infect my computer?
|Threat Type||Ransomware, Crypto Virus, Files locker|
|Encrypted Files Extension||.TROLL|
|Ransom Demanding Message||HOW TO BACK YOUR FILES.txt|
|Cyber Criminal Contactfirstname.lastname@example.org|
|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, software 'cracking' tools, unofficial software update tools|
|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)||
To eliminate possible malware infections, scan your computer with legitimate antivirus software. Our security researchers recommend using Malwarebytes.
How to protect yourself from ransomware infections?
Avoid opening attachments and web links that are received from unknown/suspicious addresses or if the email is irrelevant even when presented as legitimate/official. Use official and trustworthy sources to download software or files. No other sources can be trusted. Update programs with implemented functions and tools provided by the official software developers. Do not activate software with 'cracking' tools, since they are illegal and often proliferate malware. Have reputable anti-virus or and anti-spyware software installed and enabled at all times. Additionally, scan the operating system for threats regularly. If your computer is already infected with TROLL, we recommend running a scan with Malwarebytes for Windows to automatically eliminate this ransomware.
Text presented in TROLL ransomware text file :
YOUR FILES ARE ENCRYPTED !!!
TO DECRYPT, FOLLOW THE INSTRUCTIONS:
To recover data you need decrypt tool.
To get the decrypt tool you should:
1.In the letter include your personal ID! Send me this ID in your first email to me!
2.We can give you free test for decrypt few files (NOT VALUE) and assign the price for decryption all files!
3.After we send you instruction how to pay for decrypt tool and after payment you will receive a decryption tool!
4.We can decrypt few files in quality the evidence that we have the decoder.
DO NOT TRY TO DO SOMETHING WITH YOUR FILES BY YOURSELF YOU WILL BRAKE YOUR DATA !!! ONLY WE ARE CAN HELP YOU! CONTACT US:
ATTENTION !!! THIS IS YOUR PERSONAL ID WICH YOU HAVE TO SEND IN FIRST LETTER:
Screenshot of files encrypted by TROLL (".TROLL" extension):
TROLL 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:
- What is TROLL?
- STEP 1. TROLL virus removal using safe mode with networking.
- STEP 2. TROLL ransomware removal using System Restore.
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.
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.
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.
Video showing how to start Windows 10 in "Safe Mode with Networking":
Log in to the account infected with the TROLL 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.
2. When Command Prompt mode loads, enter the following line: cd restore and press ENTER.
3. Next, type this line: rstrui.exe and press ENTER.
4. In the opened window, click "Next".
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 TROLL ransomware virus infiltrating your PC).
6. In the opened window, click "Yes".
7. After restoring your computer to a previous date, download and scan your PC with recommended malware removal software to eliminate any remaining TROLL 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 TROLL 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.
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 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 TROLL 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 Documents, Pictures, Videos, Music, Favorites as well as Desktop folders.
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:
Malwarebytes Anti-Ransomware Beta uses advanced proactive technology that monitors ransomware activity and terminates it immediately - before reaching users' files:
- 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 TROLL ransomware: