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Mimicry ransomware. How to remove? (Uninstall guide)

removal by Julie Splinters - - | Type: Ransomware

Mimicry ransomware is a cryptovirus that mimics features of other threats

Mimicry ransomware
Mimicry ransomware virus is a crypto-demanding and file-locking cyber threat.
 

Mimicry ransomware is a file-locking virus that belongs to a Hidden Tear ransomware family. The cyber infection got its name because it has features that belong to both Scarab-Horsia and CryptoLocker ransomware. However, Mimicry ransomware only mimics features of the mentioned viruses but has different functionality. Ransomware locks files using AES encryption method and marks them with .good file extension. Also, it drops two executable files on the device frost.exe and Shiva – hence some tend to call it ShivaGood ransomware. Different variants of malware were created by independent hackers and had nothing to do with initial Hidden Tear developers (which was, in fact, designed for educational purposes only), so focus on file extensions or contact emails when searching for a solution. When encryption is done virus places a ransom note on every folder in the system. HOW_TO_RECOVER_FILES.txt contains more information about this attack, the data encryption process and demands for a ransom in Bitcoin.

Name Mimicry
Type Ransomware
File extension .good
Ransom note HOW_TO_RECOVER_FILES.txt
Encryption method AES
Distribution Spam email attachments
Contact email dsupport@airmail.cc
Termination Use our guide below for virus removal and download Reimage to fix virus damage 

Mimicry ransomware virus is developed with the main purpose of extorting cryptocurrency[1] by locking users' data using army-grade encryption method AES. This process changes the file structure and locks it from using. During the process unique key is formed that can decrypt data, later on, using decryption tool. However, there is a possibility that even virus developers are not capable of doing so. 

You shouldn't pay the ransom or contact cybercriminals behind this threat. The communication cannot lead to positive results. You better remove Mimicry ransomware from the device and then try data recovery tools or replace encoded files from the backup. 

Mimicry ransomware places a ransom note inside every folder that contains modified data. The ransom note has additional information about the infection. Virus developers state that users need to pay and contact crooks via dsupport@airmail.cc to get a few files decrypted before the payment. Unfortunately, cybercriminals are not trustworthy so better you avoid contacting them entirely.

Ransom note reads the following:

Your personal identifier: XXX 
Your are now! Just by important files is encrypted security of due to a problem with your the PC! 
Now you should send us email with your personal identifier. 
This email will be as confirmation you are ready to pay for decryption key. 
You have to pay for decryption in Bitcoins . The price depends on how fast you write to us. 
After payment we will send you the decryption tool that will decrypt all your files. 
The this us using the contact email address: dsupport@airmail.cc
the Free decryption as with the guarantee! 
Before paying you can send us up to 3 files for free decryption.
Total size of The files must be less than 10Mb (non archived), and files should not contain  valuable information (databases, backups, large excel sheets, etc.). 
How to obtain Bitcoins? 
 * The easiest way to buy bitcoins is LocalBitcoins site. You have to register You, click'Buy bitcoins', and the select the seller by payment method and price: 
https://localbitcoins.com/buy_bitcoins 
 * Also you CAN OTHER places the find to the buy Bitcoins and the beginners guide found here: 
   http: // www .coindesk.com / information / how-i-CAN-the buy-bitcoins 
the Attention! 
 * Do not rename encrypted files. 
 * Do not try to decrypt your data using third party software, it may cause permanent data loss.
 Decryption of your * files is with the help of a cause THIRD, Parties may Increased price 
   (the add for They Their fee to Our) or you CAN Become a victim of a scam a.

The ransomware file can be indicated as malicious by various antivirus and anti-malware programs. Frost.bin file is detected by 41 AV programs out of 68.[2] The can be the results shown by your tools:

  • Trojan.GenericKD.31186346
  • Win32:Malware-gen
  • Trojan.YakbeexMSIL.ZZ4
  • Ransom.HiddenTear
  • BehavesLike.Win32.Generic.cm
  • Win32/Trojan.e8e.

Because of this fact, you can perform Mimicry ransomware removal using your antivirus or antimalware tools. You can follow our suggested steps below if your antivirus is disabled because of this malware. Also, do not forget that virus modified Registry entries on your device. You can repair the damage using Reimage and clean your system further.

Ransomware script hides in spam email attachments 

The primary distribution technique for various malware is email spam when the attached MS Word or Excel file contains malicious virus script. To seem legitimate and increase the chance that user will open the attached file, such emails impersonate a well-known company, service or even government institution. 

These files come as documents, images or other commonly seen formats of data. It may resemble receipts or invoices from a company. However, the minute you open the file or click on a direct link you connect to the URL or install malicious payload directly to your device. Look out for grammar mistakes or typos, suspicious “From” address and delete spam emails from the inbox immediately. 

Get rid of Mimicry ransomware and related virus damage

Researchers[3] note that Mimicry ransomware removal needs to be done as soon as possible because ransomware can affect your device further. The best solution for this process is entering the Safe Mode with Networking and scanning the system with antivirus tools. Note that malware can block AV programs in normal mode.

To remove Mimicry ransomware and other malware-related virus damage you need a reputable tool like Reimage, Malwarebytes MalwarebytesCombo Cleaner or Plumbytes Anti-MalwareMalwarebytes Malwarebytes. While Everbe 2.0 is still not decryptable, some previous variants are. Therefore, it is worth trying the decryption tool created by security experts – you will find it below.

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Compatible with Microsoft Windows Supported versions Compatible with OS X Supported versions
What to do if failed?
If you failed to remove virus damage using Reimage, submit a question to our support team and provide as much details as possible.
Reimage is recommended to remove virus damage. 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.
Alternative Software
Different security software includes different virus database. If you didn’t succeed in finding malware with Reimage, try running alternative scan with Malwarebytes.
Alternative Software
Different security software includes different virus database. If you didn’t succeed in finding malware with Reimage, try running alternative scan with Combo Cleaner.

To remove Mimicry virus, follow these steps:

Remove Mimicry using Safe Mode with Networking

Enter your device in Safe Mode with Networking before scanning the system

  • 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 Mimicry

    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 Mimicry removal.

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

Remove Mimicry using System Restore

Use System Restore feature to remove Mimicry ransomware

  • 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 Mimicry. 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 Mimicry removal is performed successfully.

Bonus: Recover your data

Guide which is presented above is supposed to help you remove Mimicry from your computer. To recover your encrypted files, we recommend using a detailed guide prepared by 2-spyware.com security experts.

If your files are encrypted by Mimicry, you can use several methods to restore them:

File encryption is unfortunate, but you can try to restore your data using Data Recovery Pro

If Mimicry ransomware encrypted your files or you accidentally deleted them, you can use Data Recovery Pro

  • Download Data Recovery Pro;
  • Follow the steps of Data Recovery Setup and install the program on your computer;
  • Launch it and scan your computer for files encrypted by Mimicry ransomware;
  • Restore them.

Windows Previous Versions feature can be used in file recovery

If System Restore feature was enabled, use Windows Previous Versions feature and recover your data

  • Find an encrypted file you need to restore and right-click on it;
  • Select “Properties” and go to “Previous versions” tab;
  • Here, check each of available copies of the file in “Folder versions”. You should select the version you want to recover and click “Restore”.

ShadowExplorer is useful in file restoring

Shadow Volume Copies can be restored using ShadowExplorer

  • Download Shadow Explorer (http://shadowexplorer.com/);
  • Follow a Shadow Explorer Setup Wizard and install this application on your computer;
  • Launch the program and go through the drop down menu on the top left corner to select the disk of your encrypted data. Check what folders are there;
  • Right-click on the folder you want to restore and select “Export”. You can also select where you want it to be stored.

Decryption tool is not available

Finally, you should always think about the protection of crypto-ransomwares. In order to protect your computer from Mimicry and other ransomwares, use a reputable anti-spyware, such as Reimage, Malwarebytes MalwarebytesCombo Cleaner or Plumbytes Anti-MalwareMalwarebytes Malwarebytes

About the author

Julie Splinters
Julie Splinters - Malware removal specialist

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References