Remove .tro Ransomware Virus (Full Instructions)

An infection with the dangerous .tro ransomware virus leads to serious security issues. With our removal guide, victims can try to secure their computers and restore encrypted files.

Manual Removal Guide
Files Recovery Approaches
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Note for Mac users!
In case that your Mac has been affected by .tro ransomware or you suspect that other threats are running on it you can follow detailed instructions on how to detect and remove Mac viruses so you can keep the device clean and secure.

Distribution of .tro Ransomware Virus

The so-called .tro ransomware is a devastating crypto virus that has been recently released in attack campaigns against computer users worldwide. Threat actors could be utilizing widely used tactics of distribution to infect computer systems.

One of the methods that may be used by the malicious actors behind .tro ransomware includes the coordination of SPAM email messages — they are used to spread the threat by sending out messages that pose as legitimate notifications sent by popular Internet portals or services that the targets may use. The virus files can be either directly attached or linked in the body. They can also be uploaded to fake download sites which are designed to appear like any of the popular Internet portals or vendor download sites. The malicious actors may use similar sounding domain names, certificates and hijacked design and contents to coerce the victims into thinking that they are accessing the legitimate address.

Another way that the threat may spread is through infected payloads — the use of various files that are infected with virus code. A popular example is the malicious document which can take any form: presentations, rich text files, spreadsheets and databases. Once they are opened by the victims a notification message will pop-up asking the target users to enable the built-in scripts. If this is done the virus infection will follow. The other popular technique is the inclusion of the code in application installers. They are malicious copies of legitimate setup files of popular end-user programs that have been modified with the .tro ransomware code.

Ransomware files are also popularly spread by fake user profiles — they can post to community forums or social media accounts. The criminals can utilize both fake or stolen identities to increase the number of infected users.

In certain cases, the criminals may also be distributed via malicious browser plugins — additions to the most popular web browsers that are advertised as useful. The plugins are uploaded to the official repositories and often make use of fake or hijacked user reviews and developer credentials. Once they are installed by the users they will execute their built-in instructions that in many cases leads to the .tro ransomware virus infection in the end.

Impact of .tro Ransomware Virus

A strain of STOP ransomware associated with the extension .tro has been spotted in the wild. Apparently the name of this cryptovirus .tro crypto virus is a derivative of the extension it appends to corrupted files. Like its predecessors, .tro virus is designed to plague computer systems settings in order to become able to encrypt target files.

The infection process with .tro ransomware virus is triggered by its payload file. This file is likely to contain a large number of malicious commands that support the attack to its very end. So what it could do first is to create additional malicious files on the system so it can then start executing them in a predefined order. This process supports the completion of all infection stages.

Before the main stage of its infection – data corruption, .tro needs to access several system components in order to apply changes there. Some of the applied changes could enable it to evade detection and grant its persistent presence on the infected machine.

Among the affected system components is likely to be the Registry Editor. The reason for this is the fact that it has powerful functionalities that control a large number of system and apps related processes. And there are two registry keys that you should definitely check for malicious entries in case of infection with .tro ransomware:

  • 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

Since these keys manage the automatic execution of various programs on each system start, they are often targeted by ransomware viruses like .tro

By adding its malicious entries under these registry keys, it could also display you an associated ransom message on the screen. This usually occurs at the end of the attack. This message could be find in a file called _openme.txt. All it reads is:

———————————————- ALL YOUR FILES ARE ENCRYPTED ———————————————–

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.
What guarantees do we give to you?
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 download video overview decrypt tool:
https://www.sendspace.com/file/1sg7f3
Don’t try to use third-party decrypt tools because it will destroy your files.
Discount 50% available if you contact us first 72 hours.
—————————————————————————————————————————
To get this software you need write on our e-mail:
[email protected]
Reserve e-mail address to contact us:
[email protected]
Your personal ID:
023yGviLejMpPrYi4WJ57YtpGGy3OgA3ukBbPTW4dJt

With this message hackers aim to trick you into transferring them an unspecified amount of money probably converted in Bitcoin. According to their promises when you pay the ransom they will send you back the decryption key needed for the recovery of .tro files. However, there is no guarantee that their decrypter will be able to fix your corrupted files. Furthermore, they could skip sending it to you even after you transfer the demanded ransom.

As of data encryption stage, it occurs soon after the ransomware implements all needed system changes. In order to encrypt target files, .tro cryptovirus modifies the code of target files with the help of a sophisticated cipher algorithm. Corrupted files remain inaccessible for unspecified period of time. The ransomware marks them with the extension .tro

Remove .tro Ransomware Virus and Restore PC

Please note that paying the requested ransom fee to cyber criminals does not really solve your problem with .tro crypto virus. In fact, you only encourage hackers to continue spreading ransomware of this kind. Instead, you must remove the threat immediately, and only then look for optional ways to recover your data.

WARNING! Manual removal of .tro ransomware ransomware virus requires being familiar with system files and registries. Removing important data accidentally can lead to permanent system damage. If you don’t feel comfortable with manual instructions, download a powerful anti-malware tool that will scan your system for malware and clean it safely for you.

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.tro ransomware Ransomware Virus – Manual Removal Steps

Start the PC in Safe Mode with Network

This will isolate all files and objects created by the ransomware so they will be removed efficiently. The steps below are applicable to all Windows versions.

1. Hit the WIN Key + R

2. A Run window will appear. In it, write msconfig and then press Enter

3. A Configuration box shall appear. In it Choose the tab named Boot

4. Mark Safe Boot option and then go to Network under it to tick it too

5. Apply -> OK

Show Hidden Files

Some ransomware threats are designed to hide their malicious files in the Windows so all files stored on the system should be visible.

1. Open My Computer/This PC

2. Windows 7

    – Click on Organize button
    – Select Folder and search options
    – Select the View tab
    – Go under Hidden files and folders and mark Show hidden files and folders option

3. Windows 8/ 10

    – Open View tab
    – Mark Hidden items option

how to make hidden files visible in Windows 8 10 bestsecuritysearch instructions

4. Click Apply and then OK button

Enter Windows Task Manager and Stop Malicious Processes

1. Hit the following key combination: CTRL+SHIFT+ESC

2. Get over to Processes

3. When you find suspicious process right click on it and select Open File Location

4. Go back to Task Manager and end the malicious process. Right click on it again and choose End Process

5. Next, you should go folder where the malicious file is located and delete it

Repair Windows Registry

1. Again type simultaneously the WIN Key + R key combination

2. In the box, write regedit and hit Enter

3. Type the CTRL+ F and then write the malicious name in the search type field to locate the malicious executable

4. In case you have discovered registry keys and values related to the name, you should delete them, but be careful not to delete legitimate keys

Click for more information about Windows Registry and further repair help

Recover Encrypted Files

WARNING! All files and objects associated with .tro ransomware ransomware virus should be removed from the infected PC before any data recovery attempts. Otherwise the virus may encrypt restored files. Furthermore, a backup of all encrypted files stored on external media is highly recommendable.

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SpyHunter is a Windows application designed to scan for, identify, remove and block malware, potentially unwanted programs (PUPs) and other objects. By purchasing the full version, you will be able to remove detected malware instantly. Additional information about SpyHunter / Help to uninstall SpyHunter

1. Use present backups

2. Use professional data recovery software

Stellar Phoenix Data Recovery – a specialist tool that can restore partitions, data, documents, photos, and 300 more file types lost during various types of incidents and corruption.

3. Using System Restore Point

    – Hit WIN Key
    – Select “Open System Restore” and follow the steps

restore-files-using-windows-system-restore-point

4. Restore your personal files using File History

    – Hit WIN Key
    – Type restore your files in the search box
    – Select Restore your files with File History
    – Choose a folder or type the name of the file in the search bar
    – Hit the “Restore” button

Preventive Security Measures

  • Enable and properly configure your Firewall.
  • Install and maintain reliable anti-malware software.
  • Secure your web browser.
  • Check regularly for available software updates and apply them.
  • Disable macros in Office documents.
  • Use strong passwords.
  • Don’t open attachments or click on links unless you’re certain they’re safe.
  • Backup regularly your data.
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    Gergana Ivanova

    Author : Gergana Ivanova

    Gergana Ivanova is computer security enthusiast who enjoys presenting the latest issues related to cyber security.