Zimbra ransomware virus. How to remove? (Uninstall guide)

removal by Olivia Morelli - -   Also known as ZimbraCryptor | Type: Ransomware
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Zimbra ransomware attacks Zimbra Mail Store

Written in Python programming language, Zimbra virus is a probably one of its kind, because this crypto-ransomware type program does not encrypt files on victim’s computer, but only those that are stored in Zimbra enterprise collaboration program. Zimbra ransomware finds and encrypts all data stored in opt/zimbra/store folder, and appends .crypto file extension to each infected record. It utilizes AES encryption algorithm to make files useless, and once all data is encrypted, Zimbra malware saves a ransom note called how.txt in /root folder. The virus then encrypts AES encryption code using RSA encryption and then sends both of these to the author of this ransomware, removing all traces that could help the victim decrypt his/hers files for free. Now, let’s see what the ransom note says:

Ransom note from authors of Zimbra malware

Zimbra ransomware leaves this messageAs you can see from the picture, this virus leaves a short note, informing the user that if he wants to revert changes and get access to encrypted data, then he needs to pay. In other words, Zimbra virus demands a ransom. Authors of this virus want to get 3 Bitcoins, which is equal to 1971 USD. The worst thing is that you might not receive the decryption after paying the ransom, so we do not encourage you to do it. The ransom note tells the victim to transfer money to a provided Bitcoin address and then email them at mpritsken(@)priest.com.

If your computer has been infected with this virus, you should clean it from malicious virus components right away. You should not try to delete them manually as you can easily delete essential system files and corrupt your computer system. To remove Zimbra virus, you have to employ a strong anti-spyware application, for example, Reimage, and run a system scan with it. It will detect and quarantine Zimbra virus and other questionable files and programs, and at the end of the scan, you will be able to eliminate them for good with a single click.

How do viruses like Zimbra spread?

Ransomware-type viruses spread using several different techniques. Apparently, it enters victim’s computer in a deceitful way, usually with a help of a Trojan horse method. Crooks use various techniques to conceal the virus and make it look like a safe file. Here are some techniques they use to inject their harmful programs into computers:

  • For example, they can create a .doc or .js file and add it to a malicious email, including an officially-looking message. Therefore, you should beware of suspicious emails, even if they look reliable. Bear in mind that frauds commonly send fake invoices, CVs, speeding tickets, reports, and similar documents, which are infectious. For your sake, avoid opening emails sent by unknown parties.
  • Computer viruses also spread via malvertising. Attackers just love this technique as it is an easy way to trick the user into downloading malware, but in some cases, the computer can get affected only by loading a web page that has malicious ads on it. For this reason, the only thing that can protect your computer is a strong anti-malware application.
  • Criminals who create viruses often exploit vulnerabilities left in outdated computer software. Hence, you should always keep all your programs up-to-date by enabling automatic updates.

How to eliminate Zimbra?

ZimbraCrypt removal is a complex process, and we definitely do not recommend you to do it manually. Speaking of ransomware, we have to say that creators of such threats really put a lot of work in making these programs hard-to-crack and also hard-to-remove. This and similar viruses place their components in several computer folders, and filenames of them usually do not come into user’s notice at all. Apparently, the threat does not name its files as virus.exe or similarly. All in all, ransomware threats should be removed using an automatic malware removal tool. If this virus blocks the anti-spyware program, then follow these Zimbra removal instructions:

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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.
Reimage is recommended to uninstall Zimbra ransomware virus. Free scanner allows you to check whether your PC is infected or not. If you need to remove malware, you have to purchase the licensed version of Reimage malware removal tool.

More information about this program can be found in Reimage review.

More information about this program can be found in Reimage review.

Manual Zimbra virus Removal Guide:

Remove Zimbra using Safe Mode with Networking

Reimage is a tool to detect malware.
You need to purchase Full version to remove infections.
More information about Reimage.

  • Step 1: Reboot your computer to Safe Mode with Networking

    Windows 7 / Vista / XP
    1. Click Start Shutdown Restart OK.
    2. When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
    3. Select Safe Mode with Networking from the list Select 'Safe Mode with Networking'

    Windows 10 / Windows 8
    1. Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
    2. Now select Troubleshoot Advanced options Startup Settings and finally press Restart.
    3. Once your computer becomes active, select Enable Safe Mode with Networking in Startup Settings window. Select 'Enable Safe Mode with Networking'
  • Step 2: Remove Zimbra

    Log in to your infected account and start the browser. Download Reimage or other legitimate anti-spyware program. Update it before a full system scan and remove malicious files that belong to your ransomware and complete Zimbra removal.

If your ransomware is blocking Safe Mode with Networking, try further method.

Remove Zimbra using System Restore

Reimage is a tool to detect malware.
You need to purchase Full version to remove infections.
More information about Reimage.

  • Step 1: Reboot your computer to Safe Mode with Command Prompt

    Windows 7 / Vista / XP
    1. Click Start Shutdown Restart OK.
    2. When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
    3. Select Command Prompt from the list Select 'Safe Mode with Command Prompt'

    Windows 10 / Windows 8
    1. Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
    2. Now select Troubleshoot Advanced options Startup Settings and finally press Restart.
    3. Once your computer becomes active, select Enable Safe Mode with Command Prompt in Startup Settings window. Select 'Enable Safe Mode with Command Prompt'
  • Step 2: Restore your system files and settings
    1. Once the Command Prompt window shows up, enter cd restore and click Enter. Enter 'cd restore' without quotes and press 'Enter'
    2. Now type rstrui.exe and press Enter again.. Enter 'rstrui.exe' without quotes and press 'Enter'
    3. When a new window shows up, click Next and select your restore point that is prior the infiltration of Zimbra. After doing that, click Next. When 'System Restore' window shows up, select 'Next' Select your restore point and click 'Next'
    4. Now click Yes to start system restore. Click 'Yes' and start system restore
    Once you restore your system to a previous date, download and scan your computer with Reimage and make sure that Zimbra removal is performed successfully.

Finally, you should always think about the protection of crypto-ransomwares. In order to protect your computer from Zimbra and other ransomwares, use a reputable anti-spyware, such as Reimage, Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus or Malwarebytes Anti Malware

About the author

Olivia Morelli
Olivia Morelli - Ransomware analyst

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  • luckyone

    Im freaking out, why there is no way to decrypt .crypto files?? I definitely need these ! I am sorry that I was so inatentive and installed this threat, but I didnt want it to happen. I need to decrypt my files now…

    • sting

      Dude sadly there is no decryptor, I have been looking for it all over the Internet…

      • Damian

        I was looking for it as well, this virus has encrypted files on my sisters computer. Seems that there is no hope to decrypt them… at least now

  • Kelly29

    Will Reimage delete this virus for me?

    • 2-Spyware team

      Dear Kelly29,

      Yes, Reimage can remove malware, and it can also optimize your PC. The only thing this program can’t do is decrypt files.