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NOBAD ransomware. How to remove? (Uninstall guide)

removal by Julie Splinters - - | Type: Ransomware

NOBAD ransomware – a file locker that uses AES and RSA to encrypt all personal data on the infected computer

NOBAD ransowmare
NOBAD ransomware is a file locking virus that belongs to Matrix ransomware family

NOBAD virus is the newest addition to the Matrix ransomware family. It was first spotted in the wild mind-October using AES-128 + RSA-2048 encryption algorithms[1] to encrypt data by adding .NOBAD file extension. The main goal of crypto-viruses is to extort money out of victims by blackmailing them and asking for a ransom for the locked file decryptor. Cybercriminals provide a lengthy ransom note #NOBAD_README#.rtf in order to make sure that users are aware of what happened, and what they should do next. NOBAD ransomware authors explain that victims need to pay ransom in Bitcoin and contact them using nobad@tutamail.com email.

SUMMARY
Name NOBAD
Type Ransomware
Variant of Matrix ransomware
Ciphers used AES-128 + RSA-2048
File extension [email].[random_combination].NOBAD
Ransom note #NOBAD_README#.rtf
Distribution Unprotected RDP, exploit kits, fake updates, spam emails, etc.
Elimination Download and install Reimage for virus elimination

NOBAD ransomware is known to break in through the unprotected RDP configuration,[2] same as latest variants of Matrix – KOK08, ITLOCK, and EMAN do. Hackers perform a special scan where poorly protected systems using Remote Desktop Protocol are detected. They then brute-force the attack and install NOBAD virus remotely.

Additionally, NOBAD ransomware is also known to be spread using phishing emails, as well as exploit kits like RIG or EITest. No matter how the virus entered, the infected users should immediately take care of NOBAD ransomware removal. While manual elimination is not recommended, users can make use of professional security software like Reimage and get rid of the infection automatically.

NOBAD ransomware shuts down and spawns certain Windows processes in order to function. It modifies Windows Registry to ensure persistence, deletes Shadow Volume Copies and scans the PC for video, audio, database, image, and other personal files to encrypt them. If modifies files the following way: [email].[random_combination].NOBAD. This means that a file called picture.jpg will be turned into something like nobad@tutamail.com.hjg68TisG-Bsa7aV.NOBAD, rendering it unusable.

Victims are then baffled – they are left with one of the two options: either pay the ransom or lose all personal data. Proceeding with the payment is definitely not the option users should pick, as money loss is highly likely (criminals can simply not provide the key, and keep the money). Instead, they should remove NOBAD ransomware and recover files using backups. Alternatively, third-party applications can be helpful as well – check the instructions below.

NOBAD virus
NOBAD virus is ransomware that usually enters users machines via unprotected RDP or spam email campaigns

Ransomware can infiltrate your PC easily if you do not take adequate protection measures

Malware authors seek to spread the virus to as many computers as possible, as it makes a perfect illegal business. Unsurprisingly, ransomware has been the most prominent and damaging cyber threat of 2017, and, while crypto mining malware is also establishing itself well, ransomware is here to stay, and users, as well as organizations, should take care of their computer safety.

There are several ways ransomware can compromise the PC, including:

  • Breaking through via the poorly protected RDP
  • With the help of spam emails
  • Abusing software vulnerabilities
  • Using exploit kits
  • Infiltrating as a drive-by download, etc.

While there is no means of 100% online protection, precaution measures can make a significant difference and reduce the infection rate drastically. According to experts,[3] users should always pay attention to suspicious emails, as the link or attachment inside can carry the malicious payload.

Using strong passwords, updating all installed programs on time, using an up-to-date security software with the real-time feature can significantly reduce the chance of ransomware infection. Additionally, keeping backups on the cloud or remote server is always a good idea.

Eliminate NOBAD ransomware using comprehensive anti-virus software

NOBAD ransomware removal might not be that easy, especially for those who never had to deal with cyber infections before. One thing is clear: users should not delay the process, as it might indicate multiple infections on the machine.

Thus, download anti-malware software, such as Reimage and perform a full system scan. Be aware that the virus might prevent security software from operating correctly. In such a case, enter Safe Mode with Networking and remove NOBAD virus safely. Only after the elimination procedure you can go ahead and attempt file recovery. In case you did not keep any backups, check for alternative options below.

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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 NOBAD virus, follow these steps:

Remove NOBAD using Safe Mode with Networking

To remove NOBAD virus from your machine, enter 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 NOBAD

    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 NOBAD removal.

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

Remove NOBAD using System Restore

You can also disable the virus by using System Restore:

  • 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 NOBAD. 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 NOBAD removal is performed successfully.

Bonus: Recover your data

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

Make use of Data Recovery Pro

Data Recovery Pro is a great tool when it comes to corrupt or accidentally deleted files. Nevertheless, it was also observed to help users whose files were encrypted by ransomware.

  • 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 NOBAD ransomware;
  • Restore them.

Windows Previous Versions feature might help you recover files encrypted by NOBAD virus

This method will only work if System Restore was enabled before the ransomware 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”.

ShadowExplorer can be the answer

As we already mentioned, NOBAD attempts to eliminate Shadow Volume copies. However, in some cases, it might fail to do so, providing an opportunity to completely recover encrypted data.

  • 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.

No decryptor is available yet

Finally, you should always think about the protection of crypto-ransomwares. In order to protect your computer from NOBAD 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