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Shrug ransomware. How to remove? (Uninstall guide)

removal by Jake Doevan - - | Type: Ransomware

Shrug ransomware — malware that locks up files using AES cipher

Shrug ransomware virus
Shrug ransomware is a file-locking virus

Shrug ransomware is a virus that infiltrates the system silently and makes changes to it, like modifying Windows settings to gain persistence. Next, the malware scans the operating system for data to encrypt and locks up files using a sophisticated AES encryption code. As soon as that is complete, the malicious program adds .SHRUG extension to databases, spreadsheets, image, video, audio, and other personal files. Ransomware also drops a ransom note and a screen-locker, making it impossible to operate the PC in normal mode. Hacker(s), under the name of “Martha,” demand $50 worth of Bitcoins for data release.

Name Shrug
Type Ransomware
Ransom amount $50
Encryption method AES
Extension .SHRUG
Ransom message Displayed in Shrug.exe
Distribution Spam email attachments
Decryption No official decryptor created yet. Nevertheless, users should contact security researcher Michael Gillespie who can help with file recovery 
Elimination Use Reimage for virus removal

Shrug virus displays a very informative ransom message, which includes detailed instructions on how to proceed with the payment. According to hackers, victims only have three days before the key that can unlock their files is destroyed. 

The ransom message states the following:

Oh shit waddup ¯\_(ツ)_/¯

I know what you’re thinking. “What happened?”
Well, the answer is quite simple. Before I tell you, promise me you will not get mad. Okay. Your PC was victim of a Ransomware attack.
That means every important file is now encrypted and you can’t access them. Oh, and there is this screen locker too. You don’t have access to your PC anymore.
What a shame, huh?
There is only one way to get your stuff back. $50. It isn’t that much, cmon! I’ll give you instructions on how to pay. Alright. To successfully pay the ransom and unlock all your sh*t, you will need Bitcoins. But wait, it is only 50 USD in Bitcoins, no worries. Nothing to worry about. You can buy it in the internet.
Oh, and don’t even Google “how to remove a ransomware” because it will not help. When buying Bitcoins you will need a wallet. You can create one at a website called Blockchain. Now find a way to buy 50 USD in BTC. Google is your friend.
Then you must send the Bitcoins to the wallet specified in the right of the screen. After that, write your wallet inside that text box and finally click the button “I paid!”. Wait some time until I confirm your payment and fix your files.
– Martha

The message author is trying to be witty, implying that $50 is “not that much.” Nevertheless, it is still a hefty sum, considering you need to give that money away for cybercriminals. Therefore, security experts and IT professionals advise not to pay the ransom. There is a possibility that the bad actors will merely snatch your money and disappear, leaving your data inaccessible and useless.

Although no official decryption tool for .SHRUG has been released yet; you can contact security researcher Michael Gillespie[1] for file decryption. But before you do, make sure that Shrug ransomware removal is executed promptly.

The crypto-extortionist can also compromise your machine, and render it vulnerable to other infections. Keyloggers, trojans, crypto-mining malware – you name it – you can get them all, as your system is extremely weakened. Malware modifies Windows registry, prevents normal operation of security software, and attempts to delete Shadow Volume Copies – automatic Windows back-ups.

In order to have a well-working computer again, you need to remove Shrug ransomware. In case you try to decrypt files before you get rid of the virus, the copies will be locked up too. We suggest you not even attempt to delete malware manually, as it will result in a failure. Instead, use reputable security software, such as Reimage.

Spam emails can spread malware, including ransomware

Email box quickly fills up with letters that often they look safe and legitimate, so people open them without hesitation. This activity is more dangerous than it seems because spam emails and their attachments can contain malicious macros[2] that lead to malware infiltration.

Phishing emails have been used by cybercriminals for a very long time as a prominent malware distribution method, simply because it is the most effective method. What is more, bad actors utilize the help of botnets, that can infect thousands of machines in a short period. Therefore, do not open attachments from unknown sources, as well as refrain yourself from clicking on any cleverly-disguised hyperlinks. 

You should delete those letters and clean your spam email box more often if you want to avoid any cyber infections. Also, often cybersecurity specialists[3] recommend you change your passwords frequently and include a combination of numbers, upper and lower case letters when creating one.

Shrug ransomware elimination is vital for the security of your device 

To remove Shrug virus from your PC, you need to employ anti-malware tool because manual elimination is almost impossible. This is a vital step in a file recovery procedure, because, as we already mentioned, data can be encrypted again if any traces of malware are present.

You can use Reimage, Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus or Malwarebytes Anti Malware for the Shrug ransomware removal. Alternatively, you can pick any other legitimate anti-virus software. If you check below, you will also find file recovery instructions. Not all of these methods may be successful, but will not know until you try. Your best bet is if the malware did not delete Shadow Volume Copies.

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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 Shrug ransomware. 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.
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To remove Shrug virus, follow these steps:

Remove Shrug using Safe Mode with Networking

If ransomware prevents your security software from working correctly, you need to reboot your system in Safe Mode with Networking:

  • 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 Shrug

    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 Shrug removal.

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

Remove Shrug using System Restore

System Restore feature can also be helpful in virus elimination:

  • 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 Shrug. 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 Shrug removal is performed successfully.

Bonus: Recover your data

Guide which is presented above is supposed to help you remove Shrug 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 Shrug, you can use several methods to restore them:

Data Recovery Pro is a tool created for restoring files

Use Data Recovery Pro if you accidentally deleted your files or ransomware encrypted them

If you want to recover individual files you can use Windows Previous Versions feature

This feature, unfortunately, can only work if System restore was enabled before:

  • 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 can help if Shrug ransomware encrypted your data

If this virus left Shadow Volume Copies untouched you could try to recover them 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.

Official decryption tool is not available yet

Nevertheless, victims affected by .shrug ransomware should contact  Michael Gillespie – he might be able to help you with data recovery.

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

About the author

Jake Doevan
Jake Doevan - Computer technology expert

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