Remove MERL Ransomware Virus (2023 Guide)

MERL virus infects computers to encrypt all files

MERL is a ransomware-type virus that silently encrypts all files on the victim’s computer system. It is the 192th version of STOP/DJVU malware. The aim of this file-encrypting threat is to restrict access to files stored on the computer and force the victim to pay a ransom for a decryption software. During the cyberattack, the virus marks all modified files with .merl file extension and drops _readme.txt ransom notes.

The ransom notes left behind explain the victim that the only way to recover .merl files is to pay a ransom. The cybercriminals suggest testing their decryption tools by sending one file to datarestorehelp@firemail.cc or datahelp@iran.ir. The note also informs the victim to make up one’s mind within 72 hours, because the ransom is smaller during this given time period – “only” $490. Otherwise, the price of the decryption key and tool goes up to $980. In other words, it increases twice.

This DJVU ransomware variant runs some commands that make system restore points vanish from the compromised PC, then also installs Azorult Trojan on the system. This way, the virus prevents any data recovery means and leaves a password-stealing threat behind.

Therefore, it is a must to take immediate actions to remove MERL ransomware virus as soon as possible. We suggest following instructions provided at the end of this article for guidance.

Threat Summary

Name	MERL ransomware virus
Type	Ransomware (STOP/DJVU variant)
Encryption type	RSA
Ransom note	_readme.txt
Ransom amount	$490 within 72 hours or $980 later
File marker	.merl file extension
Decryption tools	STOP Decrypter (doesn’t support this extension at the moment; will only decrypt OFFLINE KEY data)
Distribution	Malicious downloads, including keygens, software cracks, other activation tools
Removal	Remove using free instructions given below the article

Is it possible to decrypt .merl files?

MERL file virus uses incredibly strong encryption method (RSA) to modify files. However, there is an encryption routine vulnerability that allows security experts recover files for offline key victims.

When the ransomware starts its processes, it attempts to connect to its remote Command & Control server, and in case it fails to do so, it uses an offline key to encrypt all files. This file is the same for all MERL victims and it can be recovered, although not easily.

Therefore, you need to check whether your files were locked with offline or online key. To do so, go to C:/SystemID/PersonalID.txt and check there. You shouldn’t check in the ransom note as it provides only one key.

In PersonalID.txt file, look for ID ending with t1. If you can find one, it means all or at least part of your files were modified using offline key. In this case, wait for an update for STOP Decryptor.

Victims subject to online key encryption have no options to recover files for free now. However, if you’re considering whether to pay the ransom or not, we suggest not doing so. Please keep in mind that the attackers use these payments to fund and start new malicious projects that reach more victims worldwide.

The virus awaits in malicious downloads

MERL virus, just like its previous versions (GESD, RIGH, HETS, MSOP) lurks in malicious and illegal downloads available online. Therefore, we suggest you to refrain yourself from looking for illegal content online. By saying illegal, we mean various software cracks, keygens, and similar files.

The developers of STOP/DJVU ransomware tend to pack such downloads with ransomware executables and upload them to file sharing sites.

It is unknown whether these criminals use malicious spam to distribute the virus, but other ransomware-variants are often proliferated in this way.

Remove MERL ransomware virus right now

Remove MERL ransomware virus along with malware it brought to your computer. You can do this using free and simple instructions provided below. Please keep in mind that there are both free and paid antivirus solutions that can remove this virus. We suggest checking software reviews on our site to choose one.

After MERL virus removal, change all your passwords and find your backup to recover your files. Although you might lose some files you created after the date of the backup, it is still better than losing everything at once.

OUR GEEKS RECOMMEND

Our team recommends a two-step rescue plan to remove ransomware and other remaining malware from your computer, plus repair caused virus damage to the system:

GeeksAdvice.com editors select recommended products based on their effectiveness. We may earn a commission from affiliate links, at no additional cost to you. Learn more.

Alternative software recommendations

Malwarebytes Anti-Malware

Removing spyware and malware is one step towards cybersecurity. To protect yourself against ever-evolving threats, we strongly recommend purchasing a Premium version of Malwarebytes Anti-Malware, which provides security based on artificial intelligence and machine learning. Includes ransomware protection. See pricing options and protect yourself now.

System Mechanic Ultimate Defense

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