RobbinHood ransomware removal instructions
What is RobbinHood?
Ransomware-type programs are computer infections that cyber criminals use to prevent people from accessing their files and to blackmail them by making ransom demands. RobbinHood was discovered by Michael Gillespie and is an example of one of these programs. It encrypts data stored on the system, rendering files unusable. To regain access to their files, people are encouraged to purchase a specific decryption tool. RobbinHood renames each encrypted file with the following format: "Encrypted_random.enc_robbinhood" (the word "random" is replaced with a string of random numbers and characters). For example, "1.jpg" might be renamed to a filename such as "Encrypted_1y5u5msd65321fd2.enc_robbinhood", and so on. This program creates an HTML file ("_Decryption_ReadMe.html") containing a ransom message, which provides instructions about how to make payment and receive a decryption tool.
As mentioned, the "_Decryption_ReadMe.html" HTML file contains instructions about how to contact cyber criminals, make payment, and so on. It states that RobbinHood encrypted files with the RSA-4096 cryptography algorithm. To acquire a decryption tool (key), ransomware victims must pay 0.8 or 13 Bitcoins using a Bitcoin wallet address presented in the HTML file. The cost depends on the number of infected systems. It goes on to state that the cost is increased by $10,000 for each day following the fourth day since encryption. Therefore, people are encouraged to make payment in no less than four days after encryption. There are three email addresses provided to make contact with the cyber criminals who developed RobbinHood. There is also an alternative method using a contact form that can be accessed through a Tor browser. People who have their data encrypted by RobbinHood are offered free decryption of three files (no larger than 10 MB in total) as 'proof' that these cyber criminals have a decryption tool/key, however, they promise to send it only when their ransom demands are met. Unfortunately, no cyber criminals (ransomware developers) can be trusted. In many cases, people are scammed: they pay for decryption tools/keys and receive nothing in return. Therefore, cyber criminals often start to ignore victims once their demands are met. In most cases, only the ransomware developers have decryption tools/keys. Ransomware-type programs encrypt data with cryptography algorithms that make decryption without the involvement of cyber criminals impossible. The only way to restore files without paying is to use a data backup that was created before encryption.
Screenshot of a message encouraging users to pay a ransom to decrypt their compromised data:
There are many ransomware-type programs online (such as CMG, L1LL, and Prus). Most encrypt data and encourage victims to pay ransoms. Essential differences between these programs are usually cost of decryption and cryptography algorithm used to encrypt data. Decryption without contacting cyber criminals is usually impossible, unless the program contains bugs/flaws or is not fully developed. Therefore, we recommend that you generate regular data backups and store them on remote servers or storage devices that are not connected to your system (otherwise, ransomware-type programs are capable of encrypting backups together with other data stored on the computer).
How did ransomware infect my computer?
|Threat Type||Ransomware, Crypto Virus, Files locker|
|Encrypted Files Extension||"Encrypted_random.enc_robbinhood" filename (the word "random" is replaced with a string of random numbers and characters)|
|Ransom Demanding Message||_Decryption_ReadMe.html file|
|Ransom Amount||0.8 - 13 Bitcoins (the price increases by $10,000 every day).|
|Detection Names||Avast (Win32:Trojan-gen), BitDefender (Trojan.GenericKD.31919436), ESET-NOD32 (Win32/Filecoder.RobbinHood.A), Kaspersky (Trojan-Ransom.Win32.Robin.a), Full List Of Detections (VirusTotal)|
|Symptoms||Can't open files stored on your computer, previously functional files now have a different extension, for example my.docx.locked. A ransom demanding message is displayed on your desktop. Cyber criminals are asking to pay a ransom (usually in bitcoins) to unlock your files.|
|Distribution methods||Infected email attachments (macros), torrent websites, malicious ads.|
|Damage||All files are encrypted and cannot be opened without paying a ransom. Additional password stealing trojans and malware infections can be installed together with a ransomware infection.|
|Malware Removal (Windows)||
To eliminate possible malware infections, scan your computer with legitimate antivirus software. Our security researchers recommend using Malwarebytes.
How to protect yourself from ransomware infections?
To avoid computer infection with ransomware-type and other high-risk infections, take the following precautions. If a received email contains an attachment and is sent from an unknown, untrustworthy, or suspicious email address, do not open the attachment or website link without making sure it is safe to do so. These emails are often irrelevant, although they are presented as important and official. Keep installed programs updated, however, use only implemented functions or tools provided by official developers. Do not download software from untrustworthy/unofficial websites, using third party downloaders, or the other dubious sources mentioned above. Use official, reputable websites and direct links. Do not activate installed software using third party tools ('cracks'), since this is a cyber crime. Furthermore, these tools cause computer infections. Keep your computer safe by having reputable anti-spyware or anti-virus software installed. If your computer is already infected with RobbinHood, we recommend running a scan with Malwarebytes for Windows to automatically eliminate this ransomware.
Screenshots of "_Decryption_ReadMe.html" HTML file:
Text presented in RobbinHood ransomware HTML file:
What happened to your files?
All your files are encrypted with RSA-4096, Read more on https://en.wikipedia.org/wiki/RSA_(cryptosystem)
RSA is an algorithm used by modern computers to encrypt and decrypt the data. RSA is an asymmetric cryptographic algorithm. Asymmetric means that there are two different keys. This is also called public key cryptography, because one of the keys can be given to anyone:
1 - We encrypted your files with our "Public key"
2 - You can decrypt, the encrypted files with specific "Private key" and your private key is in our hands ( It's not possible to recover your files without our private key )
Is it possible to get back your data?
Yes, We have a decrypter with all your private keys. We have two options to get all your data back.
Follow the instructions to get all your data back:
Step 1 : You must send us 0.8 Bitcoin(s) for each affected system
Step 2 : Inform us in panel with hostname(s) of the system you want, wait for confirmation and get your decrypter
Step 1 : You must send us 13 Bitcoin(s) for all affected system
Step 2 : Inform us in panel, wait for confirmation and get all your decrypters
Our Bitcoin address is: 132wg6kkJJ4MpNKnuhVoptYPmYHf6C5xHE
BE CAREFUL, THE COST OF YOUR PAYMENT INCREASES $10,000 EACH DAY AFTER THE FOURTH DAY
Access to the panel ( Contact us )
The panel address: http://xbt4titax4pzza6w.onion/EvcNuvq4gckb/
Access to the panel using Tor Browser
If non of our links are accessible you can try tor browser to get in touch with us:
Step 1: Download Tor Browser from here: https://www.torproject.org/download/download.html.en
Step 2: Run Tor Browser and wait to connect
Step 3: Visit our website at: panel address
If you're having a problem with using Tor Browser, Ask Google: how to use tor browser
Wants to make sure we have your decrypter?
To make sure we have your decrypter you can upload at most 3 files (maximum size allowance is 10 MB in total) and get your data back as a demo.
Where to buy Bitcoin?
The easiest way is LocalBitcoins, but you can find more websites to buy bitcoin using Google Search: buy bitcoin online
Screenshot of files encrypted by RobbinHood ("Encrypted_random.enc_robbinhood" extension):
Update February 6, 2020 - Crooks have recently released an updated version of RobbinHood ransomware, which appends a slightly different extension (".enc_robbin_hood") and drops different ransom notes (four copies, named "_Readme_Decrypt__Files.html", "_Readme_Help_Important.html", "_Readme_Help_Help_Help.html" and "_Readme_Recovery_ReadMe.html").
Screenshot of the updated Robinhood ransomware's note:
Text presented within this file:
How to recovery your files
Your network targeted by RobbinHood ransomware.
We've been watching you for days and we've worked on your systems to gain full access to your company and bypass all of your protections.
You must pay us in 4 days, if you don't pay in the speficied duration, the price increases $10,000 each day after the period. After 10 days your keys and your panel will be removed automatically and you won't be able to get your data back. We're watching you, if you want to know who we are, just ask google, don't upload your files to virustotal or services like that, don't call FBI or other security organizations. For security reasons don't shutdown your systems, don't recover your computer, don't rename your files, it will damage your files. All procedures are automated so don't ask for more times or somthings like that we won't talk more, all we know is MONEY. If you don't care about yourself we won't too. So do not waste your time and hurry up! Tik Tak, Tik Tak, Tik Tak!
What happened to your files?
All of your files locked and protected by a strong encryption with RSA-4096 ciphers.
More information about the RSA can be found here:
In summery you can't read or work with your files, But with our help you can recover them.
It's impossible to recover your files without private key and our unlocking software ( You can google: Baltimore city, Greenville city and RobbinHood ransomware )
Just pay the ransomware and end the suffering then get better cybersecurity
How to get private key or unlocking software?
The only way is to contact us: Click here
How much you must pay ?
The only way is to contact us: Click here
How To Access To Our Website?
For accessing to our website you must install Tor browser:
1 - Open your internet browser (If you don't know run internet explorer or firefox or chrome)
2 - Go to this address: hxxps://www.torproject.org/download/download.html.en
3 - Click on the windows logo and Download Tor Browser
4 - Follow the instruction and install it
5 - Run Tor-Browser with clicking on connect
6 - After initializing a normal internet browser will be opened (similar internet explorer window)
7 - Enter our web site address: -
8 - Now you are in our website and we are accessible there!
If you have any problem yet to accessing our web site, Ask Google: " how to use tor browser "
Appearance of this file (GIF):
Screenshot of files encrypted by the updated RobbinHood ransomware (".enc_robbin_hood" ransom note):
Update 19 February, 2020 - Cyber criminals have recently started spreading RobbinHood ransomware in a very unusual way. They're using a driver vulnerability (to be more specific, Gygabyte driver) in order to infiltrate the system and remove/disable the existing anti-virus software so that there wouldn't be any interferences while injecting the actual malware. More information regarding this malware campaign can be found in our news article.
Update April 20, 2020 - Crooks have released yet another variant of Robbinhood ransomware which appends ".rbhd" extension (e.g., "1.jpg" would be renamed to "1.jpg.rbhd" and so on so forth).
RobbinHood ransomware removal:
Instant automatic malware removal:
Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Malwarebytes is a professional automatic malware removal tool that is recommended to get rid of malware. Download it by clicking the button below:
- What is RobbinHood?
- STEP 1. RobbinHood virus removal using safe mode with networking.
- STEP 2. RobbinHood ransomware removal using System Restore.
Windows XP and Windows 7 users: Start your computer in Safe Mode. Click Start, click Shut Down, click Restart, click OK. During your computer start process, press the F8 key on your keyboard multiple times until you see the Windows Advanced Option menu, and then select Safe Mode with Networking from the list.
Video showing how to start Windows 7 in "Safe Mode with Networking":
Windows 8 users: Start Windows 8 is Safe Mode with Networking - Go to Windows 8 Start Screen, type Advanced, in the search results select Settings. Click Advanced startup options, in the opened "General PC Settings" window, select Advanced startup. Click the "Restart now" button. Your computer will now restart into the "Advanced Startup options menu". Click the "Troubleshoot" button, and then click the "Advanced options" button. In the advanced option screen, click "Startup settings". Click the "Restart" button. Your PC will restart into the Startup Settings screen. Press F5 to boot in Safe Mode with Networking.
Video showing how to start Windows 8 in "Safe Mode with Networking":
Windows 10 users: Click the Windows logo and select the Power icon. In the opened menu click "Restart" while holding "Shift" button on your keyboard. In the "choose an option" window click on the "Troubleshoot", next select "Advanced options". In the advanced options menu select "Startup Settings" and click on the "Restart" button. In the following window you should click the "F5" button on your keyboard. This will restart your operating system in safe mode with networking.
Video showing how to start Windows 10 in "Safe Mode with Networking":
Log in to the account infected with the RobbinHood virus. Start your Internet browser and download a legitimate anti-spyware program. Update the anti-spyware software and start a full system scan. Remove all entries detected.
If you cannot start your computer in Safe Mode with Networking, try performing a System Restore.
Video showing how to remove ransomware virus using "Safe Mode with Command Prompt" and "System Restore":
1. During your computer start process, press the F8 key on your keyboard multiple times until the Windows Advanced Options menu appears, and then select Safe Mode with Command Prompt from the list and press ENTER.
2. When Command Prompt mode loads, enter the following line: cd restore and press ENTER.
3. Next, type this line: rstrui.exe and press ENTER.
4. In the opened window, click "Next".
5. Select one of the available Restore Points and click "Next" (this will restore your computer system to an earlier time and date, prior to the RobbinHood ransomware virus infiltrating your PC).
6. In the opened window, click "Yes".
7. After restoring your computer to a previous date, download and scan your PC with recommended malware removal software to eliminate any remaining RobbinHood ransomware files.
To restore individual files encrypted by this ransomware, try using Windows Previous Versions feature. This method is only effective if the System Restore function was enabled on an infected operating system. Note that some variants of RobbinHood are known to remove Shadow Volume Copies of the files, so this method may not work on all computers.
To restore a file, right-click over it, go into Properties, and select the Previous Versions tab. If the relevant file has a Restore Point, select it and click the "Restore" button.
If you cannot start your computer in Safe Mode with Networking (or with Command Prompt), boot your computer using a rescue disk. Some variants of ransomware disable Safe Mode making its removal complicated. For this step, you require access to another computer.
To protect your computer from file encryption ransomware such as this, use reputable antivirus and anti-spyware programs. As an extra protection method, you can use programs called HitmanPro.Alert and EasySync CryptoMonitor, which artificially implant group policy objects into the registry to block rogue programs such as RobbinHood ransomware.
Note that the Windows 10 Fall Creators Update includes a "Controlled Folder Access" feature that blocks ransomware attempts to encrypt your files. By default, this feature automatically protects files stored in the Documents, Pictures, Videos, Music, Favorites as well as Desktop folders.
Windows 10 users should install this update to protect their data from ransomware attacks. Here is more information on how to get this update and add an additional protection layer from ransomware infections.
HitmanPro.Alert CryptoGuard - detects encryption of files and neutralises any attempts without need for user-intervention:
Malwarebytes Anti-Ransomware Beta uses advanced proactive technology that monitors ransomware activity and terminates it immediately - before reaching users' files:
- The best way to avoid damage from ransomware infections is to maintain regular up-to-date backups. More information on online backup solutions and data recovery software Here.
Other tools known to remove RobbinHood ransomware: