NEMTY 2.2 REVENGE ransomware removal instructions
What is NEMTY 2.2 REVENGE?
Discovered by GrujaRS, NEMTY 2.2 REVENGE is an updated variant of NEMTY REVENGE 2.0 ransomware. This malware encrypts data and demands ransom payments for decryption. During this process, all files are appended with an extension consisting of ".NEMTY_" and a unique ID, generated individually for each victim (".NEMTY_victim's ID"). For example, a filename such as "1.jpg" might appear as something similar to "1.jpg.NEMTY_JFZ9S5C", and so on for all of compromised files. Once this process is finished, NEMTY 2.2 REVENGE stores a text file on the desktop called "NEMTY_JFZ9S5C-DECRYPT.txt" (the character string is the unique ID, and therefore differs from victim to victim).
The text file informs users that their data has been encrypted and that, if they pay the ransom, they will receive decryption tools/software. Decryption is available for three months (the countdown begins from the moment they visit the NEMTY 2.2 REVENGE website). After this period, the decryption key will be deleted. As this key is necessary for recovery of the files, decryption is impossible once it becomes unavailable. Further instructions are divided into two. The first part instructs victims to open their browser, enter the specified website, upload "NEMTY_JFZ9S5C-DECRYPT.txt" onto it and rely on the instructions therein. The second part instructs them to download/install the Tor browser, open a different link though this browser, upload "NEMTY_JFZ9S5C-DECRYPT.txt" and receive more instructions. The site opened in the Tor browser reiterates that the victims' data has been encrypted and lists the date until decryption ceases being a viable option. The ransom (cost of decryption tools) is stated to be approximately $1000 in the Bitcoin cryptocurrency (currently, 0.14457759 BTC). This web page also lists recommendations/instructions concerning this transaction (where to create a cryptowallet, the cyber criminals' wallet address, etc.). After this transaction is made (the full sum has been paid), victims are instructed to reload the page and receive a link to download the necessary decryption tools/software. The website also has a chat window in case users need more details about this process. In most cases of ransomware infections, manual decryption using third party software is not possible, unless the malware is still in development and/or has certain flaws/bugs. Regardless, you are strongly advised against communicating with and/or meeting the demands of cyber criminals. Despite paying, victims often receive none of the promised tools/software, which leaves their files encrypted and useless. To prevent NEMTY 2.2 REVENGE from further encryption, it must be removed from the system, however, removal will not restore already affected data. The only solution is to recover it from a backup, if one was made before the infection and stored separately.
Screenshot of a message encouraging users to pay a ransom to decrypt their compromised data:
LockBit, BigBossRoss, and MarioLocker are some examples of other ransomware programs. All malicious programs within this category encrypt data and demand ransoms to be paid. Crucial differences between these infections include the cryptographic algorithm they use (symmetric or asymmetric) and size of the payment. To protect files against data encryption and damaging attacks, backups should be kept on remote servers and/or unplugged storage devices. Ideally, several backups should be stored in different locations.
How did ransomware infect my computer?
|Name||NEMTY 2.2 REVENGE virus|
|Threat Type||Ransomware, Crypto Virus, Files locker.|
|Encrypted Files Extension||.NEMTY_[victim's_ID] (the victim's ID consists of a random string of characters).|
|Ransom Demanding Message||NEMTY_[victim's_ID]-DECRYPT.txt|
|Ransom Amount||0.14457759 BTC (~1000$)|
|Cyber Criminals' Cryptowallet Address||35XKTbb2QRLNC3LfnUKhRgkmzoGEU8DQyg (Bitcoin)|
|Cyber Criminal Contact||Website in Tor network|
|Detection Names||AVG (FileRepMalware), BitDefender (Gen:Heur.Ransom.Imps.3), ESET-NOD32 (A Variant Of Win32/Filecoder.Nemty.A), Kaspersky (Trojan.Win32.Zenpak.saf), Full List Of Detections (VirusTotal)|
|Symptoms||Cannot open files stored on your computer, previously functional files now have a different extension (for example, my.docx.locked). A ransom demand message is displayed on your desktop. Cyber criminals demand payment of 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
Suspicious/Irrelevant emails should not be opened, especially those received from unknown senders. All attachments and links found in suspect emails must never be opened, as these files are the source of a potential infection. You are advised to use only official and verified download channels. Software should be activated and updated with tools/functions provided by legitimate developers. Illegal activation ("cracking") tools and third party updaters should not be used, due to high-risk of malware installation. It is paramount to have a reputable anti-virus/anti-spyware suite installed and kept updated. Furthermore, it should be used for regular system scans and removal of detected threats. If your computer is already infected with NEMTY 2.2 REVENGE, we recommend running a scan with Malwarebytes for Windows to automatically eliminate this ransomware.
Text presented in NEMTY 2.2 REVENGE ransomware text file ("NEMTY__victim's ID-DECRYPT.txt"):
---> NEMTY 2.2 REVENGE <---
Some (or maybe all) of your files got encryped.
We provide decryption tool if you pay a ransom.
Don't worry, if we can't help you with decrypting - other people won't trust us.
We provide test decryption, as proof that we can decrypt your data.
You have 3 month to pay (after visiting the ransom page) until decryption key will be deleted from server.
After 3 month no one, even our service can't make decryptor.
a) Open your browser.
b) Open this link: hxxp://nemty.top/public/pay.php
c) Upload this file.
d) Follow the instructions.
a) Download&Install Tor-Browser.
b) Open Tor-Browser.
c) Open this link : hxxp://zjoxyw5mkacojk5ptn2iprkivg5clow72mjkyk5ttubzxprjjnwapkad.onion/public/pay.php
d) Upload this file.
e) Follow the instruction.
Screenshot of NEMTY 2.2 REVENGE website (Tor browser):
Text presented in this page:
Payment till 01/03/2020 or private key will be deleted
NEMTY_JFZ9S5C was delivered to your system
Pay for the decryption program
and decrypt your files
Upload encrypted file
Download decrypted file
Price: 0.14457759 BTC (~1000$)
BTC wallet: 35XKTbb2QRLNC3LfnUKhRgkmzoGEU8DQyg
How to get NEMTY_JFZ9S5C decryptor?
1. Create a Bitcoin Wallet (we recommend blockchain.info)
2. Buy necessary amount of Bitcoins. Current price for buying is 0.14457759 BTC
3. Send 0.14457759 BTC to the following Bitcoin address: 35XKTbb2QRLNC3LfnUKhRgkmzoGEU8DQyg
* This receiving address was created for you, to identify your transactions
4. Wait for 3 confirmations
5. Reload current page after, and get a link to download NEMTY_JFZ9S5C decryptor
Amount: 0.14457759 BTC
Sent: 0 BTC
Screenshot of files encrypted by NEMTY 2.2 REVENGE (".NEMTY_victim's ID" extension):
Update January 3, 2020 - The Tesorion cyber security company has recently released a decryption tool capable of restoring data encrypted by NEMTY 2.2 REVENGE and NEMTY 2.3 REVENGE ransomware infections. Unfortunately, at this time, the tool is capable of restoring only certain file formats (.docx, .pptx, .xlsx). Nevertheless, it is very likely that Tesorion will continue updating this decryption tool and enhancing its capabilities. You can find the decryptor download link and user manual on the NoMoreRansom website.
Screenshot of Tesorion decrypter for NEMTY REVENGE ransomware variants (2.2 and 2.3):
NEMTY 2.2 REVENGE 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 NEMTY 2.2 REVENGE?
- STEP 1. NEMTY 2.2 REVENGE virus removal using safe mode with networking.
- STEP 2. NEMTY 2.2 REVENGE 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 NEMTY 2.2 REVENGE 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 NEMTY 2.2 REVENGE 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 NEMTY 2.2 REVENGE 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 NEMTY 2.2 REVENGE 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 NEMTY 2.2 REVENGE ransomware.
Note that 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, and 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 NEMTY 2.2 REVENGE ransomware: