What is Qmam4 Ransomware

Qmam4 is a high-risk infection categorized as a cryptovirus. The reason why it is named that way lies in its after-attack behavior – the virus demands victims to pay a sum of money in cryptocurrency upon blocking access to data. Such infections are also known as ransomware. They encrypt personal data and blackmail victims into paying the ransom. During encryption, Qmam4 attaches a string of random characters and the new .qmam4 extension to each affected file. For instance, 1.pdf will change to 1.pdf.{random sequence}.qmam4 becoming no longer accessible. Following this, Qmam4 creates a text file called D4RT_HOW_TO_DECRYPT.txt that illustrates how victims can unlock their data.


Your network has been breached and all data were encrypted.
Personal data, financial reports and important documents are ready to disclose.
To decrypt all the data and to prevent exfiltrated files to be disclosed at
you will need to purchase our decryption software.
Please contact our sales department at:
Login: -
Password: -
To get an access to .onion websites download and install Tor Browser at:
hxxps://www.torproject.org/ (Tor Browser is not related to us)
Follow the guidelines below to avoid losing your data:
- Do not modify, rename or delete *.key.qmam4 files. Your data will be
- Do not modify or rename encrypted files. You will lose them.
- Do not report to the Police, FBI, etc. They don't care about your business.
They simply won't allow you to pay. As a result you will lose everything.
- Do not hire a recovery company. They can't decrypt without the key.
They also don't care about your business. They believe that they are
good negotiators, but it is not. They usually fail. So speak for yourself.
- Do not reject to purchase. Exfiltrated files will be publicly disclosed.

It is said victims can decrypt and prevent important data from being sold on dark web resources. To do this, victims are instructed to contact cyber criminals using the Tor link. After getting in touch with the developers, they will supposedly tell you to send money in cryptocurrency and retrieve a special decryption tool afterward. Should victims refuse to follow instructions, the collected data will be leaked to the hands of third-party figures. Unfortunately, collaboration with cybercriminals might be the only way to decrypt your data and avoid publicly exfiltrated data. It is less likely that some third-party tool will be able to decrypt your data for free without the help of attackers. You can definitely restore your data using backup copies, however, this will not stop the attackers from manipulating your data to their personal benefit. Note that it is important to delete the infection before recovering data without cybercriminals. Otherwise, it may continue encryption and impact other devices that will be connected to the system. To do this and learn more about recovery methods, follow the guidelines below.

qmam4 ransomware

How Qmam4 Ransomware infected your computer

Ransomware infections are mainly distributed via email phishing messages, trojans, fake software updates/installers, exploits, web-injects, backdoors, keyloggers, and various other vectors. Email phishing is simply when cybercriminals set up bots to send spam letters containing malicious attachments. These letters are likely to be disguised as something legitimate and trick users into opening files or links. The attached files are usually macro-based Word, Excel, PDF, EXE, or Javascript files capable of executing the installation of malware. Beware of such messages and do not download software from unofficial resources. You may also be bombarded by dubious ads on third-party pages offering to download an antivirus because your system is allegedly infected. However, instead of delivering an actual antimalware utility, such websites promote trojans that are meant to install different malware. We encourage you to follow our tutorial below and learn how one can protect himself against such threats in the future.

  1. Download Qmam4 Ransomware Removal Tool
  2. Get decryption tool for .qmam4 files
  3. Recover encrypted files with Stellar Data Recovery Professional
  4. Restore encrypted files with Windows Previous Versions
  5. Restore files with Shadow Explorer
  6. How to protect from threats like Qmam4 Ransomware

Download Removal Tool

Download Removal Tool

To remove Qmam4 Ransomware completely, we recommend you to use Norton Antivirus from Symantec. It detects and removes all files, folders, and registry keys of Qmam4 Ransomware and prevents future infections by similar viruses.

Alternative Removal Tool

Download SpyHunter 5

To remove Qmam4 Ransomware completely, we recommend you to use SpyHunter 5 from EnigmaSoft Limited. It detects and removes all files, folders, and registry keys of Qmam4 Ransomware. The trial version of SpyHunter 5 offers virus scan and 1-time removal for FREE.

Qmam4 Ransomware files:


Qmam4 Ransomware registry keys:

no information

How to decrypt and restore .qmam4 files

Use automated decryptors

Download Kaspersky RakhniDecryptor

kaspersky dharma ransomware decryptor

Use following tool from Kaspersky called Rakhni Decryptor, that can decrypt .qmam4 files. Download it here:

Download RakhniDecryptor

There is no purpose to pay the ransom because there is no guarantee you will receive the key, but you will put your bank credentials at risk.

Dr.Web Rescue Pack

Famous antivirus vendor Dr. Web provides free decryption service for the owners of its products: Dr.Web Security Space or Dr.Web Enterprise Security Suite. Other users can ask for help in the decryption of .qmam4 files by uploading samples to Dr. Web Ransomware Decryption Service. Analyzing files will be performed free of charge and if files are decryptable, all you need to do is purchase a 2-year license of Dr.Web Security Space worth $120 or less. Otherwise, you don’t have to pay.

If you are infected with Qmam4 Ransomware and removed from your computer you can try to decrypt your files. Antivirus vendors and individuals create free decryptors for some crypto-lockers. To attempt to decrypt them manually you can do the following:

Use Stellar Data Recovery Professional to restore .qmam4 files

stellar data recovery professional

  1. Download Stellar Data Recovery Professional.
  2. Click Recover Data button.
  3. Select type of files you want to restore and click Next button.
  4. Choose location where you would like to restore files from and click Scan button.
  5. Preview found files, choose ones you will restore and click Recover.
Download Stellar Data Recovery Professional

Using Windows Previous Versions option:

  1. Right-click on infected file and choose Properties.
  2. Select Previous Versions tab.
  3. Choose particular version of the file and click Copy.
  4. To restore the selected file and replace the existing one, click on the Restore button.
  5. In case there is no items in the list choose alternative method.

Using Shadow Explorer:

  1. Download Shadow Explorer program.
  2. Run it and you will see screen listing of all the drives and the dates that shadow copy was created.
  3. Select the drive and date that you want to restore from.
  4. Right-click on a folder name and select Export.
  5. In case there are no other dates in the list, choose alternative method.

If you are using Dropbox:

  1. Login to the DropBox website and go to the folder that contains encrypted files.
  2. Right-click on the encrypted file and select Previous Versions.
  3. Select the version of the file you wish to restore and click on the Restore button.

How to protect computer from viruses, like Qmam4 Ransomware, in future

1. Get special anti-ransomware software

Use ZoneAlarm Anti-Ransomware

Famous antivirus brand ZoneAlarm by Check Point released a comprehensive tool, that will help you with active anti-ransomware protection, as an additional shield to your current protection. The tool provides Zero-Day protection against ransomware and allows you to recover files. ZoneAlarm Anti-Ransomware is compatible with all other antiviruses, firewalls, and security software except ZoneAlarm Extreme (already shipped with ZoneAlarm Anti-Ransomware) or Check Point Endpoint products. The killer features of this application are: automatic file recovery, overwrite protection that instantly and automatically recovers any encrypted files, file protection that detects and blocks even unknown encryptors.

Download ZoneAlarm Anti-Ransomware

2. Back up your files

idrive backup

As an additional way to save your files, we recommend online backup. Local storage, such as hard drives, SSDs, flash drives, or remote network storage can be instantly infected by the virus once plugged in or connected to. Qmam4 Ransomware uses some techniques to exploit this. One of the best services and programs for easy automatic online backup is iDrive. It has the most profitable terms and a simple interface. You can read more about iDrive cloud backup and storage here.

3. Do not open spam e-mails and protect your mailbox

mailwasher pro

Malicious attachments to spam or phishing e-mails are the most popular method of ransomware distribution. Using spam filters and creating anti-spam rules is good practice. One of the world leaders in anti-spam protection is MailWasher Pro. It works with various desktop applications and provides a very high level of anti-spam protection.

Download MailWasher Pro
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James Kramer
Hello, I'm James. My website Bugsfighter.com, a culmination of a decade's journey in the realms of computer troubleshooting, software testing, and development. My mission here is to offer you comprehensive, yet user-friendly guides across a spectrum of topics in this niche. Should you encounter any challenges with the software or the methodologies I endorse, please know that I am readily accessible for assistance. For any inquiries or further communication, feel free to reach out through the 'Contacts' page. Your journey towards seamless computing starts here