Danger level:  
  (93/100)

Cezar ransomware. How to delete? (Removal tutorial)

removal by Linas Kiguolis - - | Type: Ransomware
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Developers of Dharma virus present new crypto-malware – Cezar ransomware

Ransom note by Cezar ransomware

Cezar ransomware is a new version of a Dharma virus that usually enters the system via malicious spam email and encrypts files using the sophisticated cipher. During data encryption, it locks files with .cezar or .cesar file extension and delivers a short ransom note in HELP.txt file.

The updated version of Dharma barely differs from the original malware. It seems that the only significant change is a new file extension to targeted files. Cezar virus aims at PDF files. MS Office documents, virtual drives, various types of pictures, audios or videos. Security experts suspected that ransomware uses AES encryption to corrupt the files. Besides, it appends a long and informational extension:

  • .id-.[JasonStewem@aolonline.top].cesar,
  • .id-.[btc2017@india.com].cezar.

The ransom note is short. Hacker just asks to send him (or her) an email to gladius_rectus@aol.com and learn about data recovery possibility. There’s no doubt that victims are asked to pay the ransom. However, it's not sure how much. Though, this method is not reliable and might end up with an even bigger loss.

Unfortunately, Cezar removal won’t help to get back access to your files as well. The virus might delete Shadow Volume Copies, so using third-party decryption tools might not give the best results. However, some of the Dharma decryption keys might were leaked and some versions of malware are decryptable. Thus, this decryption software might updated soon. Just be patient!

Getting rid of the virus quickly is important because crypto-malware makes numerous changes to the Windows OS. It might alter Windows Registry entries, block computer’s security, delete or modify other system processes. Thus, using a computer infected with Cezar malware is not safe.

The only safe way to remove Cezar without causing any problems to the system is employing security software. We recommend for this task Reimage. The instructions how to disable the virus and run anti-malware is given at the end of the article.

The analysis of ransomware distribution methods

Cezar ransomware might be spread using various strategies and methods, such as:

  • malicious spam email attachments,
  • bogus security software downloaders,
  • fake updates,
  • spam websites,
  • game cracks,
  • key generators.

As you can see, there are numerous ways how ransomware can enter the system. However, malicious spam emails remain the main distribution method. Social engineering helps to trick users into opening obfuscated Word documents and looking for important content.

Researchers report that this version of Dharma spreads via Macro-enabled Word documents. Thus, in order to launch the attack, users have to click “Enable Content” button. However, you should never open any files sent from unknown senders.

Wipe out Cezar ransomware virus from the computer safely and quickly

Cezar removal is performed with professional antivirus or anti-malware. However, malware might block access to the security software or prevent from installing it. For this reason, the first elimination step requires disabling the virus (the instructions below).

When the virus is paralyzed, you have to install security program, for instance, Reimage, Malwarebytes Anti Malware or Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus. Then update it and run a full system scan to remove Cezar virus entirely. Keep in mind that malware elimination will not restore your files. For that, you can try alternative recovery methods. ransomware

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What to do if failed?
If you failed to remove infection using Reimage, submit a question to our support team and provide as much details as possible.
Computer security experts recommend using Reimage to uninstall Cezar ransomware. 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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Press mentions on Reimage

Manual Cezar Virus Removal Instructions:

Eliminate Cezar 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.

Follow these steps to disable the virus and remove it:

  • 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 Cezar

    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 Cezar completely.

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

Eliminate Cezar 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 Cezar 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 Cezar.

Bonus: Restore your files

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

Currently, only backups can let you to bring back all your files. If you do not have them, please try alternative methods and wait for the release of the official decryptor.

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

Data Recovery Pro is helpful after ransomware attack

This tool helps to restore corrupted files. Thus, it might help after ransomware attack too.

  • 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 Cezar ransomware;
  • Recover the data.

Chances to use ShadowExplorer

If Cezar ransomware virus failed to delete Volume Shadow Copies, this tool might help you to restore them. Follow these steps:

  • 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.

Cezar Decryptor is not available yet.

It is strongly recommended to take precautions and secure your computer from malware attacks. To protect your PC from Cezar 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

Linas Kiguolis
Linas Kiguolis

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

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