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

removal by Alice Woods - - | Type: Ransomware
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Deos – a new crypto-malware that asks to pay 0.1 BTC to redeem files

Deos ransomware is a file-encrypting virus that uses AES cipher to lock various files on the affected computer. Malware appends .locked file extension to each of the following file types and make them impossible to open: .asp, .aspx, .csv, .doc, .docx, .html, .jpg, .mdb, .odt, .php, .png, .ppt, .pptx, .psd, .sln, .sql,.txt, .xls, .xlsx, .xml. Once all targeted data is strengthened with strong cipher, malware might delete Shadow Volume Copies of encrypted files. This feature makes data recovery a complicated procedure. However, developers of Deos provide a ransom-demanding message where they explain how victims can obtain the decryption key. People have to transfer 0.1 Bitcoin to the provided address. According to the crooks, the decryption key will be destroyed if victims don’t rush to make the payment. The ransom note has a timer that shows how much time people have until the irreparable disaster. However, cyber security experts warn that obtaining a decryption software from hackers might end up with money loss or installation of other malware. The main purpose of ransomware-type viruses is to swindle the money from the computer users. Thus, data recovery is just the matter of hackers’ conscience. Instead of being naive and trusting evil-minded people, we recommend scanning the computer with strong malware removal program, such as Reimage or Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus. With the help of your chosen software, you will be able to remove Deos entirely.

Ransom note by Deos ransomware virus

This cyber infection is executed from Locker.exe file that is distributed via emails. However, the malicious payload is obfuscated and delivered as a safe-looking document attached to an email. Once a victim is tricked into opening this file, malware is dropped on the system. Deos consists of many dangerous files that are installed and located in various places on the affected computer. Malicious files might be find in %AppData%, %Roaming%, %Local%, %LocalLow% and %Temp% directories. However, trying to locate and delete these entries manually is not recommended. Some files might be renamed as legitimate Windows files, or malicious code might be injected in system processes. Thus, attempts to perform manual Deos removal may end up with a damaged system. What is more, ransomware is designed to run automatically whenever a user turns on the computer. In order to do that, this file-encrypting virus creates entries in Windows Registry. Therefore, malware not only takes documents, pictures and other files to a hostage, but it also makes computer’s system vulnerable. As a result, other cyber threats might launch cyber attacks and cause other problems. Thus, if you got infected with Does, you should scroll down to the end of this article and learn more about ransomware removal.

The main ways how ransomware enters the system

Developers of Deos ransomware virus might use several distribution strategies, including spam emails, malvertising or bogus software updates. The most common way to allow a virus to enter the system is to click on an infected email attachment.[1] Indeed, cyber criminals use various social engineering techniques to convince people into opening a safe-looking document provided in the email. Additionally, ransomware might come up as a useful software or crucial update. Such fake programs and updates might be presented in pop-ups and banners, as well as in suspicious download websites and other shady online sources. In order to avoid Deos and other crypto-malware, you should be careful and look for the safe sources to download programs, avoid clicking online ads even on legitimate websites and keep all the programs updated. Some advanced cyber infections may take advantage of outdated software and security vulnerabilities[2] in order to attack the device.

Instructions for Deos virus removal

Deos removal has to be performed using professional and powerful malware removal program. As we have mentioned in the article, malware makes modifications in Registry, hides its components in various directories, and might use names of legitimate Windows processes. Thus, you can unintentionally delete wrong files. To avoid irreparable damage to the system, you should install reputable software. We recommend to install Reimage, Malwarebytes Anti Malware or Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus. Using this tools, you can remove Deos entirely. If you encounter some obstacles or look for data decryption solution, please scroll down below. Our team has prepared detailed instructions how to fight ransomware and recover your files.

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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 Deos 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 Deos virus Removal Guide:

Remove Deos 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.

Deos might prevent you from installing or accessing security program. Thus, you have to disable the virus by following these instructions.

  • 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 Deos

    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 Deos removal.

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

Remove Deos using System Restore

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

System Restore method also helps to disable the virus in order to launch automatic 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 Deos. 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 Deos removal is performed successfully.

Bonus: Recover your data

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

If you do not have backups, your chances to restore files are low. However, you should try all our suggested methods and hope for the best!

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

Try Data Recovery Pro

This professional tool has already helped plenty of people to restore deleted, corrupted and encrypted files. Thus, it may help to fix the damage caused by Deos ransomware.

Take advantage of Windows Previous Versions feature

Windows Previous Versions feature allows traveling back in computer’s time. Thus, you can access previously saved versions before ransomware attack. Bear in mind that this method works only if System Restore function has been enabled on your device before Deos attack.

  • 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”.

Deos Decryptor

We are sorry, but the official decryption software is not available yet.

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

About the author

Alice Woods
Alice Woods - Likes to teach users about virus prevention

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References