BlackMamba 2.0 Ransomware – Virus Removal

Presented on this page is an explanation about BlackMamba 2.0 virus. Also included are Removal Guide, possible File Recovery of encrypted files, and Ways to Protect the Computer.

BlackMamba 2.0 ransomware is a dangerous computer threat. It is a crypto-virus and screen-locker combination type of ransomware. Several antivirus applications may identify the threat as FileCrypter, Trojan.Ransom, MSIL, or Artemis. Take note that at the moment, not all antivirus programs can detect BlackMamba 2.0 and it was able to evade a greater number of security applications. That being said, the virus can penetrate the system freely if computer users are careless and relying only on the anti-virus software for computer protection. Due to several spread mechanism of BlackMamba 2.0 ransomware, it may come from different channels that are least anticipated by users.

How BlackMamba 2.0 virus infects the computer?

There is actually no difference from spreading the common viruses and the way that ransomware is being distributed. Spam emails, pirated software, bad bots, social engineering attack, Trojan Downloader, malicious advertisements, and fake software update.

With the mentioned infection approach, it was observed that BlackMamba 2.0 and most ransomware are spreading heavily via mass-mailing campaign. The virus is attached to emails purporting as a business letter originating from a prominent organization. An influencing message is written as a way to persuade the recipients to to open the attached file. If that happens, BlackMamba 2.0 initializes the attack and begin infecting the computer.

The virus likewise spread profoundly via pirated software copies and serial key generator that comes with it. Some of these software are embedded with BlackMamba 2.0 ransomware and installing them gives the virus the chance to get executed as well. Thus, setting up the malicious software gives the opportunity for BlackMamba 2.0 to infiltrate the computer.

BlackMamba 2.0 File Encryption

When executed on the computer, the virus drops a copy of itself in Windows directory. It can also perform other malicious actions such as the following:

  • Changes the login/logoff helper via the Windows registry
  • Disables Task Manager
  • Disables Windows registry editor
  • Deletes Shadow version copies
  • Drops another malicious executable file

The virus encrypts files on the computer and suggests that victims must pay the attackers in order to get the decryption key. BlackMamba 2.0 also warns users that restarting the computer and running Widows Task manager, Cmd, and other utilities might lock the computer permanently. Here is the content of the ransom note.

Ooops! All your important files are encrypted!
What happened to my computer?
All your videos, photos, databases and other files are no longer accessible because they have been encrypted.
Can I recover my files?
Sure, but you have to pay $30 in bitcoin.
Send e-mail to us (Cobra_Locker666@protonmail.ch) we send you decryption code.
Rules:
Don’t restart your computer/
Don’t run task manager, cmd etc…

Screenshot of BlackMamba 2.0 ransom note

The screen-locker side of BlackMamba 2.0 displays the following message:

A Problem has been detected and Windows has been shutdown to prevent damage to your computer.
Never_Break_The_Rules
Your computer has been locked by BlackMamba 2.0 Ransomware
What happened to my computer?
You broke the rules! Now your computer is permanently locked.
Can I unlock my computer?
No. The only way to regain access to the computer is to reinstall the system.

[expand title=”Technical Data of BlackMamba 2.0 Ransomware”]

Technical Details
Threat NameBlackMamba 2.0 Ransomware, Cobra
Threat TypeCrypto-virus, File Locker, Encryption Virus
Ransom Amount$30 (worth of Bitcoin)
Attacker’s emailCobra_Locker666@protonmail.ch
Discovered by@SiRi
Virus AliasAd-Aware : Gen:Heur.Ransom.MSIL.1
BitDefender : Gen:Heur.Ransom.MSIL.1
Emsisoft : Gen:Heur.Ransom.MSIL.1 (B)
ESET-NOD32 : A Variant Of MSIL/Filecoder.AER
FireEye : Generic.mg.4777ca8e3e3ded9a
GData : Gen:Heur.Ransom.MSIL.1
Ikarus : Trojan-Ransom.FileCrypter
Kaspersky : HEUR:Trojan-Ransom.MSIL.Encoder.gen
McAfee : Artemis!4777CA8E3E3D
SentinelOne : Static AI – Malicious PE
ZoneAlarm : HEUR:Trojan-Ransom.MSIL.Encoder.gen
VMRay : MALWARE RANSOM

For complete details including full detection list, hash file, file names, and technical behavior (registry actions, shell commands, and processes) of BlackMamba 2.0 ransomware, please refer to this VirusTotal page.

[/expand]

Backup your files

One important step before proceeding with the procedures below is to backup your files. Ransomware are not the same. Each has its unique sets of payloads aside from encrypting the files with complex method. Others tend to delete the infected files after certain period, while others keep them concealed on hidden places. In addition, ransomware decryption tools are not guaranteed to be perfect, there are instances that files suffer from damages during the decryption process.

So, create a backup copy of your entire BlackMamba 2.0 encrypted files right now.

BlackMamba 2.0 Ransomware Removal Guide

First thing to do is remove the BlackMamba 2.0 virus before attempting the decryption. Remember that as long as the ransomware is active, it will repeatedly encrypt the files on the compromised computer.

Infection of BlackMamba 2.0 ransom virus is dangerous to the system because it can inject files that runs each time Windows starts. To prevent the malicious files from loading, Windows operating system must run with minimal process and it can be done through SafeMode With Networking.

Quick Fix - Scan the PC with Combo Cleaner for Windows

Combo Cleaner is a trusted PC security and optimization tool equipped with powerful virus and malware detection engine. This program can get rid of ransomware like BlackMamba 2.0 through this procedure.

1. Download the application from the following page:

2. Save the file to your preferred location.

3. Double-click the downloaded file CCSetup.exe and install with the default settings.

CC for Windows Installation

4. At the end of the setup process, click Finish to run Combo Cleaner.

5. The tool will update the signature file, please wait for this process to complete.

6. To begin checking for threats like BlackMamba 2.0, click on the Start Scan button. Wait for this scan to finish.

CC for Windows Start Scan

7. At the end of the scan process, click on Remove all threats to delete BlackMamba 2.0 ransomware including all malicious objects from the computer.

Free features of Combo Cleaner for Windows include Disk Cleaner, Big Files finder, Duplicate files finder, and Uninstaller. To use antivirus, privacy scanner, and to delete identified threats, users have to upgrade to a premium version.

Please continue with the succeeding removal procedures if your are comfortable to manually get rid of the threat and malicious items linked with it.

Stage 1 : Temporarily Disable System Restore on Windows OS

Because BlackMamba 2.0 and relevant virus is capable of reinstating itself by exploiting the System Restore of Windows, we suggests that you temporary disable System Restore while executing the steps. This option is also helpful to effectively run a full scan on the computer.

Do not forget to enable back System Restore after completing the removal of BlackMamba 2.0 ransomware. This feature is vital in reinstating the operating system to previous normal working condition in case of problems or conflicts occurs.

Stage 2 : Start Windows in Safe Mode With Networking

Windows 10 Guide

1. Click on Windows logo and select Power icon when options pop-ups.
2. Select Restart from the options while pressing Shift key on the keyboard.
3. Choose an Option window will appear, select the Troubleshoot button.
4. On next window, please choose Advanced Option.
5. On Advanced Option window, click on Startup Settings and then, click Restart button to reboot the computer.
6. When Windows boot on Startup Settings, press function key F5 or number 5 on keyboard.

A simpler alternative for Windows 10 users is to scan the computer with Microsoft Defender Offline. This will run a virus scan in the recovery environment.

Windows 8 Guide

1. Click Windows Start icon at the lower left section of the screen.
2. Open Search window and type Advanced in the field. It will open General PC Settings.
3. Click on Advanced Startup and then, click on Restart Now button.
4. Once the computer starts in Advanced Startup option menu, select Troubleshoot.
5. Next, click on Advanced Options to reveal the next section.
6. Click Startup settings and then, click Restart button to boot the PC in Startup Settings.
7. Use function key F5 or number key 5 to Enable Safe Mode with Networking.

Stage 3 : Scan the Computer with Sophos Antivirus

Ransomware files are placed deeply into the system and on various locations, thus, thorough scanning is vital to totally remove BlackMamba 2.0 virus. Aside from our suggested tool, you may also run your own security program.

To remove BlackMamba 2.0 automatically, scanning the computer with this efficient anti-malware tool is suggested. This scanner does not just uncover known threats like viruses or malware, it is also effective in discovering hazardous ransomware like BlackMamba 2.0.

1. Download Sophos Virus Removal Tool from the link below. Save the file on your computer where you can easily access it.

2. Once the download completes, browse the location of the file. Double-click to run the program and begin the install process.

3. On first windows of installation wizard, click Next to continue. Then, it will display the program’s License Agreement. You need to Accept the terms in order to proceed. If Windows prompts for User Account Control, please click Yes to proceed.

Screenshot of Sophos EULA Page

4. On succeeding windows, click Next or Continue to carry on with the installation. After completing the installation process, Launch Sophos Virus Removal Tool.

5. Internet connection is required when running this virus scanner in order to download important updates. Make sure that everything is up-to-date to effectively remove BlackMamba 2.0 ransomware and other relevant viruses.

6. Click the Start Scanning button to inspect the computer. This will check the system for presence of malicious objects, malware, and viruses. The tool reveals items that were found linked to BlackMamba 2.0 and other suspicious entities. Be sure to remove all identified threats.

Screenshot of Sophos Virus Scan

The above procedures should have totally eliminated BlackMamba 2.0 ransomware. However, if you found that there are still remnants of the virus, please proceed to succeeding procedures below.

Stage 4 : Double-check with Microsoft's Malicious Software Removal Tool

1. Download the free scanner called Malicious Software Removal Tool.

Download MSRT

2. The tool automatically checks the operating system and suggest appropriate download version. Click on Download button to begin. Save the file to a convenient location, preferably on Desktop.

3. After downloading the file, Windows will prompt that download has completed. Click Run to start scanning for BlackMamba 2.0 ransomware. Another option is to browse the location folder and double click on the file to run.

MSRT Icon

4. The tool will display Welcome screen, click Next. Please note the message "This tool is not a replacement for an antivirus product." You must understand that this program is made specifically to find and remove malware, viruses, Trojans, and other harmful elements on the computer. It was not designed to protect the computer.

MSRT Welcome

5. Next, you will see Scan Type. Please choose Full Scan to ensure that all BlackMamba 2.0 ransom virus entities and other harmful files left on the computer will be found and removed. For advanced computer user, you can opt for Customized Scan, if there are other drives or folders you wanted to include in this scan.

MSRT Scan

6. Full scan may take a while, please wait for Malicious Software Removal Tool to complete the tasks. However, you may cancel the scan anytime by clicking on the Cancel button.

MSRT Scan

7. After scanning, the tool will reveal all identified threats. There may be other threats that our first scan fails to detect. Please remove/delete all detected items.

8. When removal procedure is complete, you may now close Malicious Software Removal Tool. We hope that BlackMamba 2.0 ransomware have been completely deleted from the computer. Please restart Windows to proceed with the normal operation.

Recover Files from BlackMamba 2.0 Ransomware Infection

On this section, we will provide ways to decrypt files infected with BlackMamba 2.0 ransomware. Aside from dedicated decryption software and common tools, other options for file recovery are provided. As much as we can, we will update this area whenever there is new and more suitable decryption tool was made available.

Using the Decryption Key

According to malware researcher @c3rb3ru5d3d53c, the actual decryption key can be found in the memory.

Code: DaVinci

Decrypting BlackMamba 2.0 infected files with Emsisoft Tools

This service from Emsisoft is helpful in unlocking encrypted files without paying the ransom. It gives three ways to detect the ransomware and provide suitable recovery method:

Upload ransom note – This is usually the .txt or .hta files that was generated by BlackMamba 2.0 ransomware.

Upload the encrypted file – The actual encrypted file. Choose the one that is less than 8MB in size.

Contact information – Enter the email address or any links provided as it appears in the ransom note of BlackMamba 2.0 virus.

Emsisoft Tools

After submitting any of the appropriate data, Emsisoft will attempt to identify the ransomware and provide keys if there are available.

Option 1: Windows Previous Version Tool

Windows Vista and Windows 7 have a feature called Previous Versions. However, this tool is only usable if restore point was made prior to ransomware infection. To use this tool as "recovery option" for files encypted by BlackMamba 2.0 virus, please follow these steps:

1. Open My Computer or Windows Explorer.

2. Right-click on the affected files or folders. From the drop-down list, please click on Restore previous versions.

3. New window will open display all backup copy of files and folders you wanted to recover. Choose the appropriate file and click on Open, Copy, or Restore. Restoring selected files overwrites the current locked files on the computer. The tool is not actually recovering files encrypted by BlackMamba 2.0. Instead, it restores files from backup copy.

Option 2: Use ShadowExplorer to restore files encrypted by BlackMamba 2.0 Ransomware

Just like Previous Version tool, ShadowExplorer is taking advantage of shadow copy created by Windows. This tool allows you to retrieve older version of files before it was encrypted by BlackMamba 2.0 ransomware.

1. Download ShadowExplorer from the official web site.

2. Install the program with the default settings.

3. The program should run automatically after installation. If not, double-click on ShadowExplorer icon.

4. You can see the drop-down list on top of the console. Please select proper drive and the most recent point-in-time shadow copies of files you wish to restore prior to BlackMamba 2.0 ransomware infection.

shadow3

5. Right-click on the Drive, Folder, or File you wish to restore and click Export...

6. Lastly, ShadowExplorer will prompt for location where you want to save the copy of recovered files.

How to protect the computer from BlackMamba 2.0 ransomware?

After the removal of the ransomware, it is important to prevent similar incident from happening again. In order to protect the computer effectively, computer user must know how BlackMamba 2.0 ransomware was able to infect the computer. To minimize the possible infection, staying away from the common sources of this virus is crucial.

How BlackMamba 2.0 ransomware can infect your computer?

The method of infecting the computers was found to be similar as other common viruses. Though, ransomware like BlackMamba 2.0 is seen to have efficient deployment via spam email messages, web injectors, malicious software installers, misleading online advertisements, and through another virus infection.

Once the virus is executed, it immediately infects the system. Then, BlackMamba 2.0 ransomware communicates to remote server so that unique key can be generated for the specific computer. After acquiring the key, it starts to decrypt target files using a complex method that is almost unbreakable. On the last stage of the attack, BlackMamba 2.0 ransomware demands for ransom money as payment for the decryption tool. To further understand the attack scheme, we have included an infographic below.

Infographic image of ransomware attack stages
You can print, download, or share the infographic by clicking the image.

Securing the computer against ransomware attack

Do a Regular File Back-up - Always backup your data on a separate storage devices such as external hard drives, optical discs, or online backup services.

Keep Your Software Updated - Make sure that you have the latest software updates especially on the operating system. Recent updates often contain vital security patches to help protect the computer against all forms of threats.

Install a Security Program - Protect the computer with effective anti-virus application using efficient real-time scanning. Regularly run a complete scan to check the computer for presence of malware.

Protect your files with Controlled Folder Access (Windows 10)

For Windows 10 users, aside from protecting the computer using anti-virus or anti-malware programs, one way to protect against ransomware attack is by using Controlled Folder Access. This feature of Windows Defender Security Center may not prevent the BlackMamba 2.0 ransomware infection, but it can protect the folder and files in general. Follow the steps to enable Controlled Folder Access in Windows 10.

1. Go to Windows 10 Taskbar and search for Windows Defender Security Center.

2. Open Windows Defender Security Center and click on Virus & Threat Protection icon.

Virus and Threat Protection

3. On next window, please click on Ransomware Protection.

4. Under Controlled Folder Access section, switch the slider to On. That will enable the feature and protect the folder against BlackMamba 2.0 or any type of ransomware.

Controlled Folder Access

5. Click on Protected Folderslink to include additional folders. Make sure that folders where important files are located should be included in the list.

Add Protected Folder

Troubleshooting Guide

Certain programs maybe blocked by Controlled Folder Access feature. To fix the issue, simply have the specific program to be white listed.

1. Under Protected Folders, click Allow an app through controlled folder access.

2. Next, click the Add an allowed app and include the target executable file.

This Controlled Folder Access feature is one way to protect files against BlackMamba 2.0. Other important things to do in keeping files safe against ransomware is through early prevention like keeping programs updated, install an efficient security program, an do regular file backup on a separate media drive.

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