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“Oops your files have been encrypted” ransomware virus. How to remove? (Uninstall guide)

removal by Julie Splinters - - | Type: Ransomware
12

Experts terminate “Oops your files have been encrypted” ransomware after weeks of unstoppable havoc

The image of "Oops your files have been encrypted" messages

“Oops your files have been encrypted” virus is an alternative name given to an infamous cyber threat called WannaCry virus. This innocent-sounding string of words now bring a sense of fear to anyone who has been infected with WCrypt, Wana Crypt0rWNCRY file extension virus or any of the virus versions that the numerous articles were written about [1]. So it happened “Oops your files have been encrypted” is the first thing that people see when infected with this vicious parasite. 

It is interesting that other ransomware developers also picked up on this infamous line and started using it in their own malicious creations. For instance, the new Petya virus version which tried to repeat WCry's success by employing the Eternal Blue exploit also shows the same message. But this article is not about Petya (or NotPetya, like some call it), but about a virus which managed to execute the biggest ransomware attack the cyber world has seen to date. So, let's look at it in more detail.

Origins of the WannaCry virus

On May 12th, cyber security specialists globally have been summoned for an emergency – the ransomware under the name of WannaCry has paralyzed the activities of the National Health Center, hacked Deutsche Bahn transportation system and Hitachi company and multiple others.[2]

Both, corporations and individual users, did not escape the menace of this malware. It was said to have affected approximately 200 000 devices in 150 countries. The success of this malware lies in the leaked information about EternalBlue vulnerability found in Windows OS based systems.

Users or companies which have been using older Windows version fell into the well-devised trap of the hackers. Personal files have been encoded and marked with .wncry or .wcry file extensions.

Luckily, the rampage of the malware was terminated by a security specialist Marcus Hutchins, who bought unregistered domain associated with the virus. Furthermore, further analysis revealed that the malware might be linked to a notorious group of hackers “Lazarus.” [3]

IT specialists are still convinced that it is too early to lay down arms as the threat may strike again. There have been already several subsequent versions[4]. If you have been affected by this malware, remove “Oops your files have been encrypted” virus. Reimage or Malwarebytes Anti Malware speeds up the process.

Unlike the majority of Windows OS-based ransomware viruses which spread via spam emails, this malware succeeded in wreaking chaos by exploiting EternalBlue exploit, technically known as CVE-2017-0144. It permits access to SMB (Server Message Block) protocol. Such exploit has been developed by the US national Security Agency.

This cyber weapon has been kept in secret until the group of hackers known as Shadow Brokers stole it. Corresponding to it, Microsoft issued an update in March, but as the situation revealed a significant number of corporations and users did not apply the update.

Therefore, such mistake granted “Oops your files have been encrypted” malware freedom to wreak havoc. After it invades systems, further on, it behaves like an ordinary virus: encrypts files, launches its @Please_Read_Me@.txt guide with instructions, demands 300 USD in ransom and sets a 7-day period for users to pay. After the expiration, the files are said to be deleted.

Thanks to the malware researcher, the virus has been terminated. Unfortunately, further forecasts are not positive: recently previously emerged UIWIX virus has been gaining power in China.[5] The hackers seem to have eliminated the flaw which let the termination of the virus.

UIWIX virus does not have a “kill switch” and targets outdated systems as well. Unfortunately, this data leak also inspired others hackers to join the ransomware market. Adylkuzz virus is known as another virus which exploited the same vulnerability and is expected to rise in the future[6]. Thus, before we proceed to “Oops your files have been encrypted” removal section, get acquainted with its prevention options.

Malware prevention measures

This malware confirms that having professional anti-malware tools is not sufficient in battling crypto-malware threats. Therefore your participation is of high importance in the prevention of “Oops your files have been encrypted” infiltration. To stay at least a little safer, you should follow some basic rules:

  • Install Windows OS updates right after they are issues.
  • Keep system applications up-to-date.
  • Avoid opening email attachments without confirming the identity of a sender, restrain from visiting websites which are crammed with ads do not get tempted to click on fishy links on similar domains.

It has been observed that early versions of WannaCry spread via spam messages, so these prevention tips are applicable. These tips will help you limit the risk of “Oops your files have been encrypted” hijack.

Ways to delete “Oops your files have been encrypted” virus

Despite how menacing this virus may be, remove “Oops your files have been encrypted” virus as soon as you notice its marks of activity on the computer. For the successful elimination, you may use malware removal tools such as Reimage or Malwarebytes Anti Malware. Only when “Oops your files have been encrypted” removal is completed, you may start thinking about data recovery procedure. On the final note, we encourage you to remain rational and vigilant and avoid diverting to panic or inadequate precautions methods.

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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 “Oops your files have been encrypted” 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 “Oops your files have been encrypted” virus Removal Guide:

Remove “Oops your files have been encrypted” 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.

Safe Mode should grant you access to the computer. Later on, you should be able to eliminate “Oops your files have been encrypted” virus.

  • 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 “Oops your files have been encrypted”

    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 “Oops your files have been encrypted” removal.

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

Remove “Oops your files have been encrypted” 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 “Oops your files have been encrypted”. 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 “Oops your files have been encrypted” removal is performed successfully.

Bonus: Recover your data

Guide which is presented above is supposed to help you remove “Oops your files have been encrypted” 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 “Oops your files have been encrypted”, you can use several methods to restore them:

Data Recovery Pro method

This is one of the few methods to decrypt files. Since the application is designed for recovering files after a system crash, there is no 100% guarantee that you will succeed in recovering files.

”Oops your files have been encrypted” Decrypter

On torrent sites, “Oops your files have been encrypted” decryption tools may appear. However, note that it might be only corrupted tools released by the hackers themselves. You may need to wait until IT specialists release such program for free.

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

About the author

Julie Splinters - Malware removal specialist

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