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Mamba ransomware virus. How to Remove? (Uninstall Guide)

removal by - -   | Type: Ransomware
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Current status of Mamba ransomware and latest news about it

Speaking of Mamba virus (also known as HDD Cryptor ransomware), it is just as venomous as its namesake snake species. This is the infamous virus that allowed San Francisco locals enjoy free rides via SF Municipal Railway system because it has corrupted company's computers and demanded a ransom of $73,000[1]. This computer virus belongs to the crypto-ransomware group, a category of viruses that destroy victim’s personal files and demand a ransom payment. It has been discovered that Mamba ransomware uses a similar disk encryption technique that reminds of Petya’s modus operandi. However, this new ransomware targets to encrypt data and not the master file table like Petya does. For that, it utilizes DiskCryptor software. Reportedly, the virus drops 152.exe or 141.exe files on the computer, which are responsible for carrying out the encryption process. After encrypting victim’s files, the virus reboots the computer and displays the following message on the boot screen:

"You are Hacked ! H.D.D. Encrypted , Contact Us For Decryption Key (w889901665@yandex.com)

YOURID: [Victim’s ID]"

The victim can enter the decryption password on the boot screen; however, he or she needs to get one first. Sadly, this malware cannot be defeated that simply. The email that is provided on the compromised PC’s screen is meant to get in touch with malware authors and get information on how to decrypt data and get access to the computer again. This virus asks to pay a ransom of 1BTC per 1 host. The money should be transferred to a provided Bitcoin wallet. However, we always recommend users NOT to pay the ransom since it gives no guarantee that files will be decrypted[2]. Mamba removal it at utmost importance, and it should be completed using anti-malware tools, for example, Reimage or PlumbytesWebroot SecureAnywhere AntiVirus. Please do not try to remove Mamba malware manually because this virus could have brought additional viruses to your PC that you might miss.

Mamba ransomware lock screen

How does the virus infect target computers?

This virus enters the victim’s PC silently. It spreads like a Trojan horse, so the user can install it while thinking that it is a harmless file. You might download it from email after opening an infectious email attachment, or launching a malicious software update. Consequently, it is highly recommended to stay away from sites that provide questionable downloads or show pop-up alerts stating that you need to update your software urgently. Such bogus updates typically contain malware. Besides, ransomware threats frequently spread with the help of exploit kits. To prevent ransomware attacks, users should protect their computers in advance by installing anti-malware programs, creating data backups, and bypassing questionable sites on the Internet.

Mamba ransomware hits public transit system of San Fransisco: locals allowed to ride for free

At the end of November of 2016, Mamba ransomware managed to find its way to San Fransisco Municipal railway system servers and corrupt essential records with unbreakable encryption. According to reports, the virus did hit 2,112 computers out of 8,656, blocking the email system, payment system and also railway scheduling system. The virus displayed the same message on all railway system computers: You hacked, all data encrypted, contact for key (cryptom27@yandex.ru)[3]. Ransomware managed to take down ticket dispensers, too. What is more, the author of the ransomware has responded to some journalists from San Fransisco newspaper, saying that he didn't intend to infect the railway system, but since it has already happened, the organization has to pay 100 Bitcoin ($73,000) to get the decryption software. The author calls himself Any Saolis, but obviously, that is not the real perpetrator's name. What is more, the attacker disclosed that he has gained access to private company's documents and that he is going to publish them online if the railway company refuses to pay the ransom[4]. However, the company has already restored the system and confirmed that attackers didn't manage to access any sensitive data at all[5]. The ransom wasn't paid.

Mamba ransomware removal tutorial

To remove Mamba virus, just as we have said, it is strongly advisable to use anti-malware utility. We recommend using it because it is programmed by IT experts who analyze each virus individually and create algorithms capable of detecting all files belonging to viruses and removing them. Unless you are an advanced IT expert, you should not try to carry out Mamba removal manually, because you risk to delete wrong files, leave virus’ components and other unwanted components on the computer system. Currently, the free Mamba decryption tool has not been found; therefore, the only way to restore files is to copy and past them on the computer from a backup.

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What to do if failed?
If you failed to remove infection using Reimage Reimage, submit a question to our support team and provide as much details as possible.
Reimage is recommended to uninstall Mamba 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.
Reimage is recommended to uninstall Mamba 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.
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References

Mamba ransomware virus screenshot
Muni Railway System affected by Mamba ransomware attack snapshot

Method 1. Remove Mamba using Safe Mode with Networking

Step 1: Reboot your computer to Safe Mode with Networking
Windows 7 / Vista / XP
  • Click Start Shutdown Restart OK.
  • When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
  • Select Safe Mode with Networking from the list
Select 'Safe Mode with Networking'
Windows 10 / Windows 8
  • Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
  • Now select Troubleshoot Advanced options Startup Settings and finally press Restart.
  • Once your computer becomes active, select Enable Safe Mode with Networking in Startup Settings window.
Select 'Enable Safe Mode with Networking'
Step 2: Remove Mamba

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 Mamba removal.

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

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

Method 2. Remove Mamba using System Restore

Step 1: Reboot your computer to Safe Mode with Command Prompt
Windows 7 / Vista / XP
  • Click Start Shutdown Restart OK.
  • When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
  • Select Command Prompt from the list
Select 'Safe Mode with Command Prompt'
Windows 10 / Windows 8
  • Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
  • Now select Troubleshoot Advanced options Startup Settings and finally press Restart.
  • 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
  • Once the Command Prompt window shows up, enter cd restore and click Enter. Enter 'cd restore' without quotes and press 'Enter'
  • Now type rstrui.exe and press Enter again.. Enter 'rstrui.exe' without quotes and press 'Enter'
  • When a new window shows up, click Next and select your restore point that is prior the infiltration of Mamba. After doing that, click Next. When 'System Restore' window shows up, select 'Next' Select your restore point and click 'Next'
  • 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 Mamba removal is performed successfully.
Reimage is a tool to detect malware. You need to purchase full version to remove infections.
More information about Reimage
Reimage is a tool to detect malware. You need to purchase full version to remove infections. More information about Reimage

Bonus: Recover your data

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

Although there is no free decryption tool released, please, do not panic and do not rush to pay the ransom. Criminals might send you an infectious file together with the decryption software, or provide no decryption tool at all. You can wait, if you want - sometimes security experts manage to come up with free decryption tools in case they succeed to crack the ransomware code. Of course, you can recover files from backup disk or drive - just remove Mamba virus first.

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

Data Recovery Pro might help to recover your data

If your files have been encrypted by Mamba, you can try Data Recovery Pro service. Install this program using these instructions:

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

Linas Kiguolis
Linas Kiguolis - Expert in fighting against malware, viruses and spyware

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Information updated:

Comments on Mamba ransomware virus

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Manthye
Literally just got my computer encrypted with this malware, I dont know what happened!!! I was browsing through the Internet, clicking on search results and exploring funny videos. Then I left my PC for like half an hour and this happened!
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Rosie
Why my antivirus didnt block mamba virus ??
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Maison
Mine didnt block it too, i think because I have never updated it, I have read that somewhere
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Ulric
Mamba has infected my PC today, wheres the decryption software?

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