RSA-4096 Encryption Employed by Ransomware

by Milena Dimitrova | December 14, 2015 | 4 Comments ransomware, RSA-4096 encryption algorithm

A new ransomware, or more likely, a new version of a well-known ransomware, is currently using an encryption algorithm even stronger than RSA-2048. The ransomware piece claims to have employed RSA-4096. Unfortunately, one of our own users has contacted us saying that he has found a ransomware message in all of his folders, claiming that files were encrypted via RSA-4096. You can read the message in the article body.

Name	RSA-4096 Ransomware
Type	Ransomware
Short Description	A new ransomware or a variant of a popular one has employed RSA-4096.
Symptoms	The encryption is most likely part of a malicious operation with a payload CryptoWall, TeslaCrypt, or another sophisticated rasomware.
Distribution Method	Via exploit kits, suspicious emails, etc.
Detection Tool	Download Malware Removal Tool, to See If Your System Has Been Affected by RSA-4096 Ransomware
User Experience	Join our forum to discuss RSA-4096 Encryption.
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.

As you will notice, the ransomware actors have embraced a more aggressive approach. Not only are they using stronger encryption that may take hundreds of years to decrypt, but they have become more hostile in their attitude towards victims. Appetite comes with eating, doesn’t it?

So, what is RSA-4096 encryption?

As we just said, this particular RSA encryption is much stronger than RSA-2048. According to security experts, the process of deciphering files encrypted by RSA-4096 will take many years, even if a super computer is used.

What led us to believe that a certain ransomware piece has employed this RSA algorithm? We received a complaint by one of our users, saying that they have found the following message, dropped in all of their folders:

NOT YOUR LANGUAGE? USE https://translate.google.com
What happened to your files ?
All of your files were protected by a strong encryption with RSA-4096.
More information about the encryption keys using RSA-4096 can be found here: http://en.wikipedia.org/wiki/RSA_(cryptosystem)
How did this happen ?
!!! Specially for your PC was generated personal RSA-4096 KEY, both public and private.
!!! ALL YOUR FILES were encrypted with the public key, which has been transferred to your computer via the Internet.
Decrypting of your files is only possible with the help of the private key and decrypt program, which is on our secret server.
What do I do ?
So, there are two ways you can choose: wait for a miracle and get your price doubled, or start obtaining BTC NOW, and restore your data easy way.
If You have really valuable data, you better not waste your time, because there is no other way to get your files, except make a payment.
For more specific instructions, please visit your personal home page, there are a few different addresses pointing to your page below:
[…] IMPORTANT INFORMATION:
Your personal pages:
http://[SYMBOLS](.)justmakeapayment.com/[…] http://[SYMBOLS](.)brsoftpayment.com/[…] http://[SYMBOLS].com/[…] https://[SYMBOLS].onion.to/[…] Your personal page (using TOR-Browser):
Your personal identification number (if you open the site (or TOR-Browser’s) directly): […] !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

This is what software engineer Daniel Pocock says about the RSA-4096 algorithm:

If an attack is found that allows a 2048 bit key to be hacked in 100 hours, that does not imply that a 4096 bit key can be hacked in 200 hours. The hack that breaks a 2048 bit key in 100 hours may still need many years to crack a single 4096 bit key. It is also worth noting that simply adding 1 bit (going from 1024 bits to 1025 bits) does not double the effort to crack the key, each extra bit adds some security but a little bit less than what was gained with the previous bit.

What should users affected by RSA-4096 encryption do?

As usual, the first step is to remove the threat that has dropped the ransomware onto your system. Our research indicates that one of the Trojans that may be dropping the ransomware is Trojan:Win32/Miuref:B, categorized as an infostealer.

Trojan:Win32/Miuref:B is most likely working together with the Nuclear exploit kit, applied in numerous ransomware and malware operations.

NB.The malicious process associated with the Trojan and the current RSA-4096 encryption probably goes like that:

→The user receives a suspicious email containing an infected link ->The user is redirected to a page that hosts the Nuclear EK (or some other exploit kit)-> Trojan:Win32/Miuref:B, or another infostealer, harvests information about the system-> If the system ‘meets’ the requirements (e.g. if the system is 64-bit, it won’t be attacked), the ransomware payload is dropped onto it.

We have reasons to suspect that two big ransomware families may have employed the RSA-4096 encryption algorithm. To no one’s surprise, they are:

TeslaCrypt
CryptoWall

Both of the ransomware families are quite active at the moment. Moreover, they have various variants and have made enough money out of ransoms to accomplish RSA-4096 encryption. Nonetheless, these are only assumptions. We will let you know when we gather enough information about the particular ransomware using RSA-4096.

For the moment, refer to the removal instructions below the article. As for decryption of files encrypted by RSA-4096 – if you haven’t backed up your data, we’re afraid nothing can be done (besides paying the ransom, which we never recommend, and hoping for obtaining your personal key).

UPDATE, Dec 15
The ransomware that is currently using RSA-4096 is most likely TeslaCrypt. The ransomware appends the well-known .vvv extension to the victim’s files, and we have already seen TeslaCrypt use this particular extension. More information is already available – see how to remove TeslaCrypt RSA-4096.

1. Boot Your PC In Safe Mode to isolate and remove RSA-4096 Ransomware

1. Boot Your PC Into Safe Mode

1. For Windows 7,XP and Vista.

2. For Windows 8, 8.1 and 10.

For Windows XP, Vista, 7 systems:

1. Remove all CDs and DVDs, and then Restart your PC from the “Start” menu.
2. Select one of the two options provided below:

– For PCs with a single operating system: Press “F8” repeatedly after the first boot screen shows up during the restart of your computer. In case the Windows logo appears on the screen, you have to repeat the same task again.

– For PCs with multiple operating systems: Тhe arrow keys will help you select the operating system you prefer to start in Safe Mode. Press “F8” just as described for a single operating system.

3. As the “Advanced Boot Options” screen appears, select the Safe Mode option you want using the arrow keys. As you make your selection, press “Enter“.

4. Log on to your computer using your administrator account

While your computer is in Safe Mode, the words “Safe Mode” will appear in all four corners of your screen.

Step 1: Open the Start Menu

Step 2: Whilst holding down Shift button, click on Power and then click on Restart.
Step 3: After reboot, the aftermentioned menu will appear. From there you should choose Troubleshoot.

Step 4: You will see the Troubleshoot menu. From this menu you can choose Advanced Options.

Step 5: After the Advanced Options menu appears, click on Startup Settings.

Step 6: Click on Restart.

Step 7: A menu will appear upon reboot. You should choose Safe Mode by pressing its corresponding number and the machine will restart.

2. Remove RSA-4096 Ransomware with SpyHunter Anti-Malware Tool

1. Install SpyHunter to scan for and remove RSA-4096 Ransomware.

2. Scan with SpyHunter to Detect and Remove RSA-4096 Ransomware.

Step 1:Click on the “Download” button to proceed to SpyHunter’s download page.

It is highly 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.

Step 2: Guide yourself by the download instructions provided for each browser.
Step 3: After you have installed SpyHunter, wait for it to automatically update.

Step1: After the update process has finished, click on the ‘Scan Computer Now’ button.

Step2: After SpyHunter has finished scanning your PC for any RSA-4096 Ransomware files, click on the ‘Fix Threats’ button to remove them automatically and permanently.

Step3: Once the intrusions on your PC have been removed, it is highly recommended to restart it.

3. Remove RSA-4096 Ransomware with Malwarebytes Anti-Malware.

3. Remove RSA-4096 Ransomware with Malwarebytes Anti-Malware

1. Install Malwarebytes Anti-Malware to scan for and remove RSA-4096 Ransomware.

2. Scan your PC with MalwareBytes to remove all RSA-4096 Ransomware associated files automatically.

Step 1: Download Malwarebytes by clicking here.
Step 2: A pop-up window will appear. Click on the ‘Save File’ button. If it does not, click on the Download button and save it afterwards.

Step 3: After you have downloaded the setup, simply open it.
Step 4: The installer should appear. Click on the ‘Next’ button.

Step 5: Check the ‘I accept the agreement’ check circle if not checked if you accept it and click the ‘Next’ button once again.

Step 6: Review and click on ‘Next’ on the following 4 steps that will appear afterwards and after that click on the ‘Install’ button.

Step 7: After the installation process has completed click on the ‘Finish’ button and check the ‘Launch MalwareBytes AntiMalware’ check box.

Step 1: Launch MalwareBytes if you havent launched it after install.
Step 2: Wait for the software to update and then click on the blue ‘Scan Now’ button. If it doesnt start updating automatically, click on the blue ‘Update Now’ highlighted text.

Step 3: At this point, after clicking the ‘Scan Now’ button, the system should start scanning your PC. It may take a while but be patient – it is worth it.

Step 4: After the scan has been complete and all of the threats have been identified, click on the ‘Remove Selected’ button to detelete them permanently.

Step 5: Once the scan has completed, MalwareBytes will prompt you to restart your computer. It is recommended to save all your data you are working on before restarting.

4. Remove RSA-4096 Ransomware with STOPZilla AntiMalware

1. Install STOPZilla Anti Malware to scan for and remove RSA-4096 Ransomware.

2. Scan your PC with STOPZilla Anti Malware to remove all RSA-4096 Ransomware associated files completely.

Step 1: Download STOPZilla by clicking here.
Step 2: A pop-up window will appear. Click on the ‘Save File’ button. If it does not, click on the Download button and save it afterwards.

Step 3: After you have downloaded the setup, simply open it.
Step 4: The installer should appear. Click on the ‘Next’ button.

Step 5: Check the ‘I accept the agreement’ check circle if not checked if you accept it and click the ‘Next’ button once again.

Step 6: Review and click on the ‘Install’ button.

Step 7: After the installation process has completed click on the ‘Finish’ button.

Step 1: Launch STOPZilla if you havent launched it after install.
Step 2: Wait for the software to automatically scan and then click on the ‘Repair Now’ button. If it does not scan automatically, click on the ‘Scan Now’ button.

Step 3: After the removal of all threats and associated objects, you should Restart your PC.

5. Back up your data to secure it against infections and file encryptions by RSA-4096 Ransomware in the future

5. Back up your data to secure it against attacks in the future

Security engineers recommend that you back up your files immediately, preferably on an external memory carrier in order to be able to restore them. In order to protect yourself from RSA-4096 Ransomware (For Windows Users) please follow these simple steps:

1. For Windows 7 and earlier

1. For Windows 8, 8.1 and 10

1. Enabling the Windows Defense Feature (Previous Versions)

1-Click on Windows Start Menu

2-Type Backup And Restore
3-Open it and click on Set Up Backup

4-A window will appear asking you where to set up backup. You should have a flash drive or an external hard drive. Mark it by clicking on it with your mouse then click on Next.

5-On the next window, the system will ask you what do you want to backup. Choose the ‘Let Me Choose’ option and then click on Next.

6-Click on ‘Save settings and run backup’ on the next window in order to protect your files from possible attacks by RSA-4096 Ransomware.

1-Press Windows button + R

2-In the window type ‘filehistory’ and press Enter

3-A File History window will appear. Click on ‘Configure file history settings’

4-The configuration menu for File History will appear. Click on ‘Turn On’. After its on, click on Select Drive in order to select the backup drive. It is recommended to choose an external HDD, SSD or a USB stick whose memory capacity is corresponding to the size of the files you want to backup.

5-Select the drive then click on ‘Ok’ in order to set up file backup and protect yourself from RSA-4096 Ransomware.

1- Press Windows button + R keys.

2- A run windows should appear. In it type ‘sysdm.cpl’ and then click on Run.

3- A System Properties windows should appear. In it choose System Protection.

5- Click on Turn on system protection and select the size on the hard disk you want to utilize for system protection.
6- Click on Ok and you should see an indication in Protection settings that the protection from RSA-4096 Ransomware is on.

Restoring a file via Windows Defense feature:
1-Right-click on the encrypted file, then choose Properties.

2-Click on the Previous Versions tab and then mark the last version of the file.

3-Click on Apply and Ok and the file encrypted by RSA-4096 Ransomware should be restored.

NOTE! Substantial notification about the RSA-4096 Ransomware threat: Manual removal of RSA-4096 Ransomware requires interference with system files and registries. Thus, it can cause damage to your PC. Even if your computer skills are not at a professional level, don’t worry. You can do the removal yourself just in 5 minutes, using a malware removal tool.

Milena Dimitrova

An inspired writer and content manager who has been with SensorsTechForum for 4 years. Enjoys ‘Mr. Robot’ and fears ‘1984’. Focused on user privacy and malware development, she strongly believes in a world where cybersecurity plays a central role. If common sense makes no sense, she will be there to take notes. Those notes may later turn into articles! Follow Milena @Milenyim

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RSA-4096 Ransomware may remain persistent on your system and may re-infect it. 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.

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. More about SpyHunter 5 and steps to uninstall. Click on the corresponding links to check SpyHunter’s EULA, Privacy Policy and Threat Assessment Criteria.

Preparation before removing RSA-4096 Ransomware.

Before starting the actual removal process, we recommend that you do the following preparation steps.

Make sure you have these instructions always open and in front of your eyes.
Do a backup of all of your files, even if they could be damaged. You should back up your data with a cloud backup solution and insure your files against any type of loss, even from the most severe threats.
Be patient as this could take a while.

Step 1: Boot Your PC In Safe Mode to isolate and remove RSA-4096 Ransomware

OFFER

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”, tick “Network” 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: Clean any registries, created by RSA-4096 Ransomware 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 RSA-4096 Ransomware 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.

Step 3: Find files created by RSA-4096 Ransomware

For Windows 8, 8.1 and 10.

For Windows XP, Vista, and 7.

For Newer Windows Operating Systems

1: On your keyboard press  + R and write explorer.exe in the Run text box and then click on the Ok button.

2: Click on your PC from the quick access bar. This is usually an icon with a monitor and its name is either “My Computer”, “My PC” or “This PC” or whatever you have named it.

3: Navigate to the search box in the top-right of your PC’s screen and type “fileextension:” and after which type the file extension. If you are looking for malicious executables, an example may be “fileextension:exe”. After doing that, leave a space and type the file name you believe the malware has created. Here is how it may appear if your file has been found:

N.B. We recommend to wait for the green loading bar in the navination box to fill up in case the PC is looking for the file and hasn’t found it yet.

For Older Windows Operating Systems

In older Windows OS’s the conventional approach should be the effective one:

1: Click on the Start Menu icon (usually on your bottom-left) and then choose the Search preference.

2: After the search window appears, choose More Advanced Options from the search assistant box. Another way is by clicking on All Files and Folders.

3: After that type the name of the file you are looking for and click on the Search button. This might take some time after which results will appear. If you have found the malicious file, you may copy or open its location by right-clicking on it.

Now you should be able to discover any file on Windows as long as it is on your hard drive and is not concealed via special software.

IMPORTANT!
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 RSA-4096 Ransomware with SpyHunter Anti-Malware Tool

1. Click on the “Download” button to proceed to SpyHunter’s download page.

Download

Malware Removal Tool

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.

Step 5 (Optional): Try to Restore Files Encrypted by RSA-4096 Ransomware.

Ransomware infections and RSA-4096 Ransomware 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 reccomended Data Recovery software by clicking on the link underneath:

Stellar Data Recovery Technician Version

If the above link does not work for you and your region, try the ones below, that lead to the same product:

Stellar Data Recovery Technician Version (Secondary link)

and

Stellar Data Recovery Technician Version (with Registration)

2. On the download page, click on the “Download” button:

3. Click on “Save File” button:

4. Accept all agreements and click “Next”:

5. After all the “Next” steps, click on “Install” and then wait for the installation to complete:

6. Run the software. Click on the location to scan for missing or deleted files and click on “Scan”:

7. Wait for the scan to complete, it may take some time. Be advised that this scan is not 100% guaranteed to recover all files, but it does have some chance to get your data back:

For more “how-to” file recovery methods and steps, you can visit our instructive article on “How to Restore Files Encrypted by Ransomware (Without Decrypter)“.

Milena Dimitrova

Follow Me:

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REMOVE IT NOW (PC)

with Spy Hunter

Preparation before removing RSA-4096 Ransomware.

Before starting the actual removal process, we recommend that you do the following preparation steps.

Make sure you have these instructions always open and in front of your eyes.
Do a backup of all of your files, even if they could be damaged. You should back up your data with a cloud backup solution and insure your files against any type of loss, even from the most severe threats.
Be patient as this could take a while.

Step 1: Boot Your PC In Safe Mode to isolate and remove RSA-4096 Ransomware

OFFER

Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!

We Recommend To Scan Your PC with SpyHunter

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: Clean any registries, created by RSA-4096 Ransomware 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 RSA-4096 Ransomware 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.

Step 3: Find files created by RSA-4096 Ransomware

For Windows 8, 8.1 and 10.

For Windows XP, Vista, and 7.

For Newer Windows Operating Systems

1: On your keyboard press  + R and write explorer.exe in the Run text box and then click on the Ok button.

N.B. We recommend to wait for the green loading bar in the navination box to fill up in case the PC is looking for the file and hasn’t found it yet.

For Older Windows Operating Systems

In older Windows OS’s the conventional approach should be the effective one:

1: Click on the Start Menu icon (usually on your bottom-left) and then choose the Search preference.

2: After the search window appears, choose More Advanced Options from the search assistant box. Another way is by clicking on All Files and Folders.

Now you should be able to discover any file on Windows as long as it is on your hard drive and is not concealed via special software.

Step 4: Scan for RSA-4096 Ransomware with SpyHunter Anti-Malware Tool

1. Click on the “Download” button to proceed to SpyHunter’s download page.

Download

Malware Removal Tool

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’.

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

Milena Dimitrova

Follow Me:

OFFER

REMOVE IT NOW (PC)

with Spy Hunter

Preparation before removing RSA-4096 Ransomware.

Before starting the actual removal process, we recommend that you do the following preparation steps.

Make sure you have these instructions always open and in front of your eyes.
Be patient as this could take a while.

Step 1: Uninstall RSA-4096 Ransomware and related software from Windows

OFFER

Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!

We Recommend To Scan Your PC with SpyHunter

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 2: Clean your Browsers from RSA-4096 Ransomware.

Remove an extension from Mozilla Firefox

Remove an extension from Google Chrome

Remove an extension from Internet Explorer

Remove an extension from Microsoft Edge

1. Start Mozilla Firefox. Open the menu window

2. Select the “Add-ons” icon from the menu.

3. Select the unwanted extension and click “Remove“

4. After the extension is removed, restart Mozilla Firefox by closing it from the red “X” button at the top right corner and start it again.

1. Start Google Chrome and open the drop menu

2. Move the cursor over “Tools” and then from the extended menu choose “Extensions“

3. From the opened “Extensions” menu locate the unwanted extension and click on its “Remove” button.

4. After the extension is removed, restart Google Chrome by closing it from the red “X” button at the top right corner and start it again.

1. Start Internet Explorer:
2. Click on the gear icon labeled ‘Tools’ to open the drop menu and select ‘Manage Add-ons’

3. In the ‘Manage Add-ons’ window.

4. Select the extension you want to remove and then click ‘Disable’. A pop-up window will appear to inform you that you are about to disable the selected extension, and some more add-ons might be disabled as well. Leave all the boxes checked, and click ‘Disable’.

5. After the unwanted extension has been removed, restart Internet Explorer by closing it from the red ‘X’ button located at the top right corner and start it again.

1. Start Edge

2. Open the drop menu by clicking on the icon at the top right corner.

3. From the drop menu select “Extensions”.

4. Choose the suspected malicious extension you want to remove and then click on the gear icon.

5. Remove the malicious extension by scrolling down and then clicking on Uninstall.

Step 3: Clean any registries, created by RSA-4096 Ransomware 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 RSA-4096 Ransomware 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.

Step 4: Scan for RSA-4096 Ransomware with SpyHunter Anti-Malware Tool

1. Click on the “Download” button to proceed to SpyHunter’s download page.

Download

Malware Removal Tool

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’.

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

Milena Dimitrova

Follow Me:

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REMOVE IT NOW (MAC)

with Combo Cleaner

RSA-4096 Ransomware may remain persistent on your system and may re-infect it. We recommend you to download Combo Cleaner and run free scan to remove all virus files on your Mac. This saves you hours of time and effort compared to doing the removal yourself.

Combo Cleaner’s scanner is free but the paid version is needed to remove the malware threats. Read Combo Cleaner’s EULA and Privacy Policy

Preparation Phase:

Before starting to follow the steps below, be advised that you should first do the following preparations:

Backup your files in case the worst happens.
Make sure to have a device with these instructions on standy.
Arm yourself with patience.

Step 1: Uninstall RSA-4096 Ransomware and remove related files and objects

OFFER

Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!

We Recommend To Scan Your Mac with Combo Cleaner

Keep in mind, that Combo Cleaner needs to purchased to remove the malware threats. Click on the corresponding links to check Combo Cleaner’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 RSA-4096 Ransomware:

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 RSA-4096 Ransomware. 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 RSA-4096 Ransomware. 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 RSA-4096 Ransomware 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 RSA-4096 Ransomware. 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
/Library/LaunchDaemons

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

Step 2: Remove RSA-4096 Ransomware – related extensions from Safari / Chrome / Firefox

Remove an extension from Safari and reset it.

Remove a toolbar from Google Chrome

Remove a toolbar from Mozilla Firefox

1. Start Safari

2. After hovering your mouse cursor to the top of the screen, click on the Safari text to open its drop down menu.

3. From the menu, click on “Preferences“

4. After that, select the ‘Extensions’ Tab

5. Click once on the extension you want to remove.

6. Click ‘Uninstall’

A pop-up window will appear asking for confirmation to uninstall the extension. Select ‘Uninstall’ again, and the RSA-4096 Ransomware will be removed.

How to Reset Safari
IMPORTANT: Before resetting Safari make sure you back up all your saved passwords within the browser in case you forget them.

Start Safari and then click on the gear leaver icon.

Click the Reset Safari button and you will reset the browser.

1. Start Google Chrome and open the drop menu

2. Move the cursor over “Tools” and then from the extended menu choose “Extensions“

3. From the opened “Extensions” menu locate the add-on and click on the garbage bin icon on the right of it.

4. After the extension is removed, restart Google Chrome by closing it from the red “X” in the top right corner and start it again.

1. Start Mozilla Firefox. Open the menu window

2. Select the “Add-ons” icon from the menu.

3. Select the Extension and click “Remove“

4. After the extension is removed, restart Mozilla Firefox by closing it from the red “X” in the top right corner and start it again.

Step 3: Scan for and remove RSA-4096 Ransomware files from your Mac

When you are facing problems on your Mac as a result of unwanted scripts and programs such as RSA-4096 Ransomware, the recommended way of eliminating the threat is by using an anti-malware program. Combo Cleaner offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.

Download

Combo Cleaner

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4 Comments

DELAGE Gerard February 8, 2016 at 12:22 pm
BONJOUR
je viens d’etre infecté par RSA 4096,tout mes fichiers on été criptés PDF , Excel et photos a peu pres 3000 avec la fonction recherche de Windows j’ai eliminé 6000 lettres d’instruction.
je pense que tout les fichiers criptés sont perdus. Qu’n pensez vous
cordialement Gerard
Reply ↓
Felipe May 1, 2016 at 10:10 pm

Mi sistema es de 64bits y he sido infectado con RSA4096, pero mis archivos tienen la extencion .cript, baje el SpyHunter 4 y el escaneo no menciona a ninguno de los que se mencionan arriba.revise en panel de control y no tengo programas sospechosos instalados recientemente. Creo que me infecte en la pagina de rojadirecta viendo un partido de futbol, no infecta programas solo archivos texto, calculo, video y sonido es desesperante. El formateo del disco elimina la amenaza.

Reply ↓
1. Ivan Romero May 24, 2016 at 11:49 pm
  Hola Felipe, como bien dices formateando el equipo se acaba el virus, pero de casualidad lograste recuperar tus archivos? Gracias.
  Reply ↓
Josué David May 25, 2016 at 4:31 pm
Hola
tengo el mismo problema con RSA4096, me urge recuperar mis archivos.
Quien me puede ayudar con este tema, ya que mis archivos están en .cript.
Muchas gracias de antemano
Reply ↓