Danger level:  
  (99/100)

Asasin virus. How to delete? (Removal tutorial)

removal by Olivia Morelli - - | Type: Ransomware
12

Asasin ransomware overtakes Locky virus’ activity

Asasin ransomware is the new Locky variant

Asasin virus (first discovered in October 2017) is believed to be developed by the same hacker group that created Locky ransomware. Both malicious programs use the same encryption method. Once infiltrated, it encrypts the victim’s files, appends .asasin file extension to them and asks to pay a ransom to access the data recovery solution.

Sadly, the virus uses the RSA-2048 and AES-128 algorithms, which are similar to the ones used in encryption of military-grade secrets. Thus, even IT professionals aren’t able to decrypt the data. The malware suggests buying Locky decrypter to restore corrupted data, which is nothing else but an extortion.

Typically, the crypto-malware changes file-names to 36-characters string and adds an extension mark .asasin at the end. Later, it creates three files on the computer – asasin.bmp, asasin.htm, asasin-49az.htm.

They are designed to change the victim’s background with a picture displaying a ransom note and inform about the ransomware attack. Criminals assure that there is a possibility to recover the files; however, the victimized user is asked to pay 0.25-0.3 Bitcoins in exchange. Fraudsters promise to send a decryption key as soon as the payment is completed.

Note that the amount of the ransom equals to more than a $1000. In this and every other case of ransomware, trusting criminals is not a wise decision. You have no guarantees that they will not ask for even more money after the transaction.

There is a high possibility that your computer automatically stores backup copies in the cloud. Thus, we strongly recommend you to immediately remove Asasin virus and try to recover most of your data using back-ups.

Our IT specialists suggest using Reimage or Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus security software. It will quickly detect malicious files and safely get rid of them.

Crypto-malware spreads via malicious e-mail attachments

Analysts tracked back the distribution source of Asasin – malicious spam e-mails. Developers pretend to be a legitimate RightSignature company as they send myriads of emails containing a deceiving subject line.

According to the records, the malspam campaign fails to infiltrate the virus into the system. Researchers state that criminals tend to include a 7zip or .7z archive containing a VBS file. As a result, users who open it will get infected with the ransomware. But the attachment holding the executable is corrupted, and users aren’t able to download it.

However, if you have received a message from documents@rightsignature.com named 'Document invoice_95649_sign_and_return.pdf is complete' – DO NOT OPEN IT. Be aware that there could be a vast of similar emails distributing malware.

Tips to remove Asasin malware

Once the malware infiltrates your computer, you should immediately eliminate it. Cybersecurity experts also highly advise against attempts to remove Asasin manually. This ransomware can stealthily download other malicious programs to your system. This might end up doing even more harm to your data.

To protect your data, you should opt for automatic removal using a reliable security software. Download it from verified developers in order to avoid purchasing a useless application. Use a direct link if possible since you might get redirected to suspicious websites controlled by other cybercriminals. Reboot your computer to Safe Mode and let the right software scan your files thoroughly.

IMPORTANT. Keep in mind that Asasin removal isn't what it takes to recover encrypted files. Removing the virus simply prevents the ransomware from infecting your system with additional malware and causing more damage to the computer or your privacy. To recover your files, use the instructions provided below the article.

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Computer security experts recommend using Reimage to uninstall Asasin virus. Reimage scans the entire computer system and checks whether it is infected with spyware/malware or not. If you want to remove computer threats and secure your computer system, you should consider buying the licensed version of Reimage.

You can find more details about this program in Reimage review.

You can find more details about this program in Reimage review.
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Manual Asasin Virus Removal Instructions:

Eliminate Asasin using Safe Mode with Networking

You can detect malware using Reimage.
You need to purchase a licensed version of it to remove threats.
More details about Reimage.

To remove Locky Asasin virus, carefully carry out the provided instructions.

  • Step 1: Restart your computer in Safe Mode with Networking

    Windows 7 / Vista / XP
    1. Go to Start Shutdown Restart OK.
    2. As soon as your computer starts, start pressing F8 key repeatedly before the Windows logo shows up.
    3. Choose Safe Mode with Networking from the list Choose 'Safe Mode with Networking' option

    Windows 10 / Windows 8
    1. Click on the Power button at the Windows login screen, and then press and hold Shift key on your keyboard. Then click Restart.
    2. Then select Troubleshoot Advanced options Startup Settings and click Restart.
    3. Once your computer starts, select Enable Safe Mode with Networking from the list of options in Startup Settings. Choose 'Enable Safe Mode with Networking' option
  • Step 2: Remove Asasin

    Sign in to your account and launch any Internet browser. Download a legitimate anti-malware software, for instance, Reimage. Make sure you update it to the latest version and then run a full system scan with it to detect and eliminate all malicious components of the ransomware to remove Asasin completely.

If your ransomware does not allow you to access Safe Mode with Networking, please follow the instructions provided below.

Eliminate Asasin using System Restore

You can detect malware using Reimage.
You need to purchase a licensed version of it to remove threats.
More details about Reimage.

  • Step 1: Restart your computer in Safe Mode with Command Prompt

    Windows 7 / Vista / XP
    1. Go to Start Shutdown Restart OK.
    2. As soon as your computer starts, start pressing F8 key repeatedly before the Windows logo shows up.
    3. Choose Command Prompt from the list Choose 'Safe Mode with Command Prompt' option

    Windows 10 / Windows 8
    1. Click on the Power button at the Windows login screen, and then press and hold Shift key on your keyboard. Then click Restart.
    2. Then select Troubleshoot Advanced options Startup Settings and click Restart.
    3. Once your computer starts, select Enable Safe Mode with Command Prompt from the list of options in Startup Settings. Choose 'Enable Safe Mode with Command Prompt' option
  • Step 2: Perform a system restore to recover files and settings
    1. When the Command Prompt window appears, type in cd restore and press Enter. Type 'cd restore' without quotes and hit 'Enter'
    2. Then type rstrui.exe and hit Enter.. Type 'rstrui.exe' without quotes and hit 'Enter'
    3. In a new window that shows up, click the Next button and choose a restore point that was created before the infiltration of Asasin and then click on the Next button again. When 'System Restore' wizard comes up, click 'Next'. Choose a preferable restore point and click 'Next'
    4. To start system restore, click Yes. Hit 'Yes' and start system restore
    After restoring the computer system to an antecedent date, install and check your computer with Reimage to uncover any remains of Asasin.

Bonus: Restore your files

Using the tutorial provided above you should be able to eliminate Asasin from the infected device. novirus.uk team has also prepared an in-depth data recovery guide which you will also find above.

Data recovery is possible if you have a data backup. If you do not, the following data recovery methods are optional methods that MIGHT help you in this situation. Unfortunately, we do not recommend you to put your hopes up high because encryption algorithms cannot be broken that easily.

There are a couple of methods you can apply to recover data encrypted by Asasin:

Try using Data Recovery Pro for decryption of .asasin files

Data Recovery Pro helps to recover deleted or corrupted files. Although its capabilities regarding data decryption are not the most powerful ones, trying them is one of the few options you have.

  • Download Data Recovery Pro (https://novirus.uk/download/data-recovery-pro-setup.exe);
  • Install Data Recovery on your computer following the steps indicated in the software’s Setup;
  • Run the program to scan your device for the data encrypted by Asasin ransomware;
  • Recover the data.

Additional method that helps to recover individual files

If you have created a system restore point, you can restore some of your files with a help of a specific Windows feature. See the steps provided below and restore some of the encrypted files now.

  • Right-click on the encrypted document you want to recover;
  • Click “Properties” and navigate to “Previous versions” tab;
  • In the “Folder versions” section look for the available file copies. Choose the desired version and press “Restore”.

Check for Volume Shadow Copies

Unfortunatly, Asasin virus tends to delete Volume Shadow Copies from the target system, although you can still try to recover some files using ShadowExplorer software. In rare cases, ransomware fails to correctly wipe out all Volume Shadow Copies.

  • Download Shadow Explorer (http://shadowexplorer.com/);
  • Install Shadow Explorer on your computer following the instructions in the software’s Setup Wizard;
  • Run the program. Navigate to the menu on the top-left corner and select a disk containing your encrypted files. Look through the available folders;
  • When you find the folder you want to recover, right-click it and select “Export”. Also, choose where the recovered data will be stored.

No known ways to fully decrypt .asasin files

Unfortunately, nobody has created any working solutions for .asasin data recovery. It does not mean that you should go and buy the decrypter from ransomware authors – they are unlikely to provide you with data recovery solution whatsoever. We suggest checking for available data copies in your USBs, DVDs, email, online data storage services, and other locations you previously used for storing or sharing files.

It is strongly recommended to take precautions and secure your computer from malware attacks. To protect your PC from Asasin and other dangerous viruses, you should install and keep a powerful malware removal tool, for instance, Reimage, Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus or Malwarebytes Anti Malware.

About the author

Olivia Morelli
Olivia Morelli

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Source: https://www.2-spyware.com/remove-asasin-ransomware-virus.html

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