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Ransomware 3301 – How to Remove + File Restore

This article has been created to show you how to remove Ransomware 3301 from your computer effectively and how to restore files that have been encrypted by this virus.

A new Karmen ransomware variant, called Ransomware 3301 has been reported by MalwareHunterTeam @malwrhunterteam on Twitter. The virus not only encrypts documents, photos and databases, but also drops a file, named DECRYPT_MY_FILES.html which has a primary purpose of getting the victim to visit It’s website where instructions can be found on how to pay a hefty sum of BitCoins as a form of extortion to get the files back. If your computer has been infected by Ransomware 3301, be advised that paying the ransom may not be your best option. Instead we recommend that you read this article first.

Threat Summary

Name Ransomware 3301
Type Ransomware, Cryptovirus
Short Description Encrypts the files on the computers infected by it and then asks to open a ransom note file which leads to a payment site where a sum is requested to be transferred to the criminals in return for the files.
Symptoms Changed wallpaper. A file, called DECRYPT_MY_FILES.html dropped on the computer. Encrypted files.
Distribution Method Spam Emails, Email Attachments, Executable files
Detection Tool See If Your System Has Been Affected by malware


Malware Removal Tool

User Experience Join Our Forum to Discuss Ransomware 3301.
Data Recovery Tool Windows Data Recovery by Stellar Phoenix Notice! This product scans your drive sectors to recover lost files and it may not recover 100% of the encrypted files, but only few of them, depending on the situation and whether or not you have reformatted your drive.

Ransomware 3301 – How Does It Spread

I order for Ransomware 3301 to spread and infect the maximum amount of victims, the cyber-criminals may use advanced tactics which may include spreading the virus in a multitude of methods. One of those tactics has been reported to likely be e-mail spam messages, whose primary purpose is to get victims to either open suspicious e-mail attachment or click on a URL that may cause a drive by download. Usually the e-mail that are sent spreading Ransomware 3301 may contain a deceitful claim in them. The most often used claims in the e-mails are:

  • Receipt.
  • Invoice.
  • Important banking report.
  • Suspicious activity on your banked account.
  • Someone added you on a social networking site.

As soon as the victim clicks on the suspicious URL or downloads the malicious file and opens it, the virus begins it’s malicious activity.

Besides the primary method of being spread via e-mail, the Ransomware 3301 infection may also be redistributed via other methods as well. The main of those methods are if the virus is uploaded online as a fake installer of a program or a license activator, such as key generator, crack or similar.

Ransomware 3301 – More Information

After the Ransomware 3301 infection has been initiated, the infection file may drop the payload of the virus which contains multiple different types of files. The files may have different functions and the virus makes sure they are concealed from the victim. They may exist under different names in the commonly targeted Windows folders:

  • %AppData%
  • %Temp%
  • %Local%
  • %LocalLow%
  • %Temp%
  • %Roaming%

After having already infected the computer, Ransomware 3301 virus may escalate it’s privileges, giving it total control over your computer. The virus uses this to change key settings in Windows, for example to delete the shadow volume copies via the bcedit and vssadmin commands in the background. The commands are as follows:

→ process call create cmd.exe /c
vssadmin.exe delete shadows /all /quiet
bcdedit.exe /set {default} recoveryenabled no
bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures

After deleting the shadow volume copies, the Ransomware 3301 executes a script that changes the wallpaper of the victim PC with a wallpaper that has the following message:

Text from Image:

“Ransomware 3301
! Attention !
All your documents, photos, databases and other important files have been encrypted
Only way to decrypt your files is to receive the private key and decryption program To receive the private key and decryption program go to any crypted folder inside there is the special file (DECRYPT_MY_FILES•HTML) with complete instructions how to decrypt your files”

After opening the DECRYPT_MY_FILES.HTML files which is usually located on the desktop of the affected computer, the victim sees the following image that leads to a TOR-based website:

Text from image:

You Are Locked by 3301
What happened? Your documents. photos. databases and other important files have been encrypted! If you want them back then follow the instructions. You have to pay us the amount that will be indicated on the site. Before paying you have no chance to get the key and decryptor. More information you will see on the site.
Other information
You have 168 hours/7 Days or your decrypt key will be deleted and hope to get the files disappears. Bellow & on your Desktop you will find your Unique ID. you must specify this Unique ID on the site to get the payment informations to buy your decrypt key and recover your files. I wait for you on the site.
1. Download and Install the Tor Browser from here:
2. Run it
3. In the Tor Browser open the website
4. Click on your country & enter your ID
5. Follow the Instructions on the website
Notice: For any other browser that is not TOR. use the links at the bottom.

Ransomware 3301 – File Encryption

The encryption process of Ransomware 3301 is conducted by generating a unique identification which corresponds to the infected computer. This way the cyber-criminals can easily track the encryption process. The procedure of encrypting files includes replacing key data of the original files with data from the encryption algorithm, enough to make them unable to be opened. Ransomware 3301 may target the following file types for encryption:

  • Image files.
  • Videos.
  • Audio files.
  • Databases.
  • Archives.
  • Documents.

After the encryption process, Ransomware 3301’s end goal is to get victims TOR-based web page, which looks like the following:

The amount of bitcoins requested are 0.00036 and victims have 168 hours to comply. Paying the cyber-criminals for decryption is strongly inadvisable because of several key reasons:

  • You aid the expansion of their cyber-criminal operations.
  • Paying is not a guarantee that you will get your files decrypted.

Remove Ransomware 3301 and Restore Encrypted Files

For the removal process of 3301 ransomware, we strongly suggest that you focus on creating a backup of your important files first. After this, you can proceed removing Ransomware 3301 from your computer by following the removal instructions below. They are specifically created to help you completely be rid of this virus by isolating it. However, if you want to be certain that Ransomware 3301 is removed completely, we strongly suggest that you perform the removal process with a ransomware-specific anti-malware software automatically. Doing so will also ensure that your PC stays protected in the future as well.

If you want to restore the files that have been encrypted by this virus, we strongly suggest that you try our alternative methods in step “2. Restore files encrypted by Ransomware 3301” below. They are not 100% effective, however they may help you recover at least a portion of your encrypted files. However, be advised to always try those methods on copies of your encrypted files, not the original ones and from a secure computer, for maximum safety.

Ventsislav Krastev

Ventsislav is a cybersecurity expert at SensorsTechForum since 2015. He has been researching, covering, helping victims with the latest malware infections plus testing and reviewing software and the newest tech developments. Having graduated Marketing as well, Ventsislav also has passion for learning new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management, Network Administration and Computer Administration of System Applications, he found his true calling within the cybersecrurity industry and is a strong believer in the education of every user towards online safety and security.

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Attention! SensorsTechForum strongly recommends that all malware victims should look for assistance only by reputable sources. Many guides out there claim to offer free recovery and decryption for files encrypted by ransomware viruses. Be advised that some of them may only be after your money.

As a site that has been dedicated to providing free removal instructions for ransomware and malware since 2014, SensorsTechForum’s recommendation is to only pay attention to trustworthy sources.

How to recognize trustworthy sources:

  • Always check "About Us" web page.
  • Profile of the content creator.
  • Make sure that real people are behind the site and not fake names and profiles.
  • Verify Facebook, LinkedIn and Twitter personal profiles.


with Anti-Malware
We recommend you to download SpyHunter and run free scan to remove all virus files on your PC. This saves you hours of time and effort compared to doing the removal yourself.
SpyHunter 5 free remover allows you, subject to a 48-hour waiting period, one remediation and removal for results found. Read EULA and Privacy Policy

About the Ransomware 3301 Research

The content we publish on SensorsTechForum.com, this Ransomware 3301 how-to removal guide included, is the outcome of extensive research, hard work and our team’s devotion to help you remove the specific malware and restore your encrypted files.

How did we conduct the research on this ransomware?

Our research is based on an independent investigation. We are in contact with independent security researchers, and as such, we receive daily updates on the latest malware and ransomware definitions.

Furthermore, the research behind the Ransomware 3301 ransomware threat is backed with VirusTotal and the NoMoreRansom project.

To better understand the ransomware threat, please refer to the following articles which provide knowledgeable details.


1. How to Recognize Spam Emails with Ransomware
2. How Does Ransomware Encryption Work?
3. How to Decrypt Ransomware Files
4. Ransomware Getting Greedier and Bigger, Attacks Increase by 40%
5. 1 in 5 Americans Victim of Ransomware

Windows Mac OS X

How to Remove Ransomware 3301 from Windows.

Step 1: Boot Your PC In Safe Mode to isolate and remove Ransomware 3301


Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your PC with SpyHunter

Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter's malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria

1. Hold Windows Key + R.

2. The "Run" Window will appear. In it, type "msconfig" and click OK.

3. Go to the "Boot" tab. There select "Safe Boot" and then click "Apply" and "OK".

Tip: Make sure to reverse those changes by unticking Safe Boot after that, because your system will always boot in Safe Boot from now on.

4. When prompted, click on "Restart" to go into Safe Mode.

5. You can recognise Safe Mode by the words written on the corners of your screen.

Step 2: Uninstall Ransomware 3301 and related software from Windows

Here is a method in few easy steps that should be able to uninstall most programs. No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it. To do that:

1. Hold the Windows Logo Button and "R" on your keyboard. A Pop-up window will appear.

2. In the field type in "appwiz.cpl" and press ENTER.

3. This will open a window with all the programs installed on the PC. Select the program that you want to remove, and press "Uninstall"

Follow the instructions above and you will successfully uninstall most programs.

Step 3: Clean any registries, created by Ransomware 3301 on your computer.

The usually targeted registries of Windows machines are the following:

  • 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

You can access them by opening the Windows registry editor and deleting any values, created by Ransomware 3301 there. This can happen by following the steps underneath:

1. Open the Run Window again, type "regedit" and click OK.

2. When you open it, you can freely navigate to the Run and RunOnce keys, whose locations are shown above.

3. You can remove the value of the virus by right-clicking on it and removing it.

Tip: To find a virus-created value, you can right-click on it and click "Modify" to see which file it is set to run. If this is the virus file location, remove the value.

Before starting "Step 4", please boot back into Normal mode, in case you are currently in Safe Mode.
This will enable you to install and use SpyHunter 5 successfully.

Step 4: Scan for Ransomware 3301 with SpyHunter Anti-Malware Tool

1. Click on the "Download" button to proceed to SpyHunter's download page.

It is recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria.

2. After you have installed SpyHunter, wait for it to update automatically.


3. After the update process has finished, click on the 'Malware/PC Scan' tab. A new window will appear. Click on 'Start Scan'.


4. After SpyHunter has finished scanning your PC for any files of the associated threat and found them, you can try to get them removed automatically and permanently by clicking on the 'Next' button.


If any threats have been removed, it is highly recommended to restart your PC.

Video Guide for Automatic and Fast Removal

Step 5 (Optional): Try to Restore Files Encrypted by Ransomware 3301.

Ransomware infections and Ransomware 3301 aim to encrypt your files using an encryption algorithm which may be very difficult to decrypt. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.

1. Download the recommended Data Recovery software by clicking on the link underneath:

Simply click on the link and on the website menus on the top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.

Step 6: How to Restore Files Encrypted by Ransomware (Video Guide)

Windows Mac OS X

Get rid of Ransomware 3301 from Mac OS X.

Step 1: Uninstall Ransomware 3301 and remove related files and objects

Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your Mac with SpyHunter for Mac
Keep in mind, that SpyHunter for Mac needs to purchased to remove the malware threats. Click on the corresponding links to check SpyHunter’s EULA and Privacy Policy

1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:

2. Find Activity Monitor and double-click it:

3. In the Activity Monitor look for any suspicious processes, belonging or related to Ransomware 3301:

Tip: To quit a process completely, choose the “Force Quit” option.

4. Click on the "Go" button again, but this time select Applications. Another way is with the ⇧+⌘+A buttons.

5. In the Applications menu, look for any suspicious app or an app with a name, similar or identical to Ransomware 3301. If you find it, right-click on the app and select “Move to Trash


6. Select Accounts, after which click on the Login Items preference.

Your Mac will then show you a list of items that start automatically when you log in. Look for any suspicious apps identical or similar to Ransomware 3301. Check the app you want to stop from running automatically and then select on the Minus (“-“) icon to hide it.

7. Remove any left-over files that might be related to this threat manually by following the sub-steps below:

  • Go to Finder.
  • In the search bar type the name of the app that you want to remove.
  • Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
  • If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.

In case you cannot remove Ransomware 3301 via Step 1 above:

In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:

Disclaimer! If you are about to tamper with Library files on Mac, be sure to know the name of the virus file, because if you delete the wrong file, it may cause irreversible damage to your MacOS. Continue on your own responsibility!

1: Click on "Go" and Then "Go to Folder" as shown underneath:

2: Type in "/Library/LauchAgents/" and click Ok:

3: Delete all of the virus files that have similar or the same name as Ransomware 3301. If you believe there is no such file, do not delete anything.

You can repeat the same procedure with the following other Library directories:

→ ~/Library/LaunchAgents

Tip: ~ is there on purpose, because it leads to more LaunchAgents.

Click the button below below to download SpyHunter for Mac and scan for Ransomware 3301:


SpyHunter for Mac

Step 3 (Optional): Try to Restore Files Encrypted by Ransomware 3301.

Ransomware infections and Ransomware 3301 aim to encrypt your files using an encryption algorithm which may be very difficult to decrypt. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.

1. Download the recommended Data Recovery software by clicking on the link underneath:

Simply click on the link and on the website menus on top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.

Ransomware 3301 FAQ

What is Ransomware 3301 ransomware and how does it work?

Ransomware 3301 is a ransomware infection - the malicious software that enters your computer silently and blocks either access to the computer itself or encrypt your files.

Many ransomware viruses use sophisticated encryption algorithm how to make your files inaccessible. The goal of ransomware infections is to demand that you pay a ransom payment to get access to your files back.

How does Ransomware 3301 ransomware infect my computer?

Via several ways.Ransomware 3301 Ransomware infects computers by being sent via phishing e-mails, containing virus attachment.

This attachment is usually masked as an important document, like an invoice, bank document or even a plane ticket and it looks very convincing to users.

After you download and execute this attachment, a drive-by download occurs and your computer is infected with the ransomware virus.

Another way, you may become a victim of Ransomware 3301 is if you download a fake installer, crack or patch from a low reputation website or if you click on a virus link. Many users report getting a ransomware infection by downloading torrents.

How to open .Ransomware 3301 files?

You can't. At this point the .Ransomware 3301 files are encrypted. You can only open them once they are decrypted.

Decryptor did not decrypt my data. What now?

Do not panic and backup the files. If a decryptor did not decrypt your .Ransomware 3301 files successfully, then do not despair, because this virus is still new.

One way to restore files, encrypted by Ransomware 3301 ransomware is to use a decryptor for it. But since it's a new virus, advised that the decryption keys for it may not be out yet and available to the public. We will update this article and keep you posted as soon as this decryptor is released.

How Do I restore ".Ransomware 3301" files (Other Methods)?

Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .Ransomware 3301 files.

These methods are in no way 100% guarantee that you will be able to get your files back. But if you have a backup, your chances of success are much greater.

How do I get rid of Ransomware 3301 ransomware virus?

The safest way and the most efficient one for the removal of this ransomware infection is the use a professional anti malware software. It will scan for and locate Ransomware 3301 ransomware and then remove it without causing any additional harm to your important .Ransomware 3301 files.

Also, keep in mind that viruses like Ransomware 3301 ransomware also install Trojans and keyloggers that can steal your passwords and accounts. Scanning your computer with an anti-malware software will make sure that all of these virus components are removed and your computer is protected in the future.

What to Do If nothing works?

There is still a lot you can do. If none of the above methods seem to work for you, then try these methods:

  • Try to find a safe computer from where you can can login on your own line accounts like One Drive, iDrive, Google Drive and so on.
  • Try to contact your friends, relatives and other people so that they can check if they have some of your important photos or documents just in case you sent them.
  • Also, check if some of the files that were encrypted it can be re-downloaded from the web.
  • Another clever way to get back some of your files is to find another old computer, a flash drive or even a CD or a DVD where you may have saved your older documents. You might be surprised what will turn up.
  • You can also go to your email account to check if you can send any attachments to other people. Usually what is sent the email is saved on your account and you can re-download it. But most importantly, make sure that this is done from a safe computer and make sure to remove the virus first.

More tips you can find on our forums, where you can also asks any questions about your ransomware problem.

How to Report Ransomware to Authorities?

In case your computer got infected with a ransomware infection, you can report it to the local Police departments. It can help authorities worldwide track and determine the perpetrators behind the virus that has infected your computer. Below, we have prepared a list with government websites, where you can file a report in case you are a victim of a cybercrime:

Cyber-security authorities, responsible for handling ransomware attack reports in different regions all over the world:

Reports may be responded to in different timeframes, depending on your local authorities.

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