Wesker Encrypter ransomware virus - removal and decryption options
Written by Tomas Meskauskas on (updated)
What kind of malware is Wesker Encrypter?
Wesker Encrypter is malicious software (ransomware) that prevents victims from accessing their files by encoding them with strong encryption.
Therefore, victims cannot access files unless a cryptocurrency ransom is paid. Unlike most programs of this type, Wesker Encrypter does not rename any encrypted files. It simply creates a ransom message in the "!!!INSTRUCTION_RNSMW!!!.txt" text file, which contains instructions about how to recover files.
Screenshot of files encrypted by Wesker Encrypter:
Ransom note overview
The ransom message states that files were not damaged, but were modified and can be decrypted - victims are encouraged to download and install the Tor browser and use it to open a website link provided. The message contains a warning stating that victims should not try to reinstall the operating system or try to restore or decrypt files.
The decryption tool can be purchased only by using the link provided. The website contains information about the decryption tool cost and some other details. The tool is called "Wesker Decryptor" and costs the equivalent of 0.72270001 in the Dash (cryptocurrency). After seven days, however, the cost doubles to 1.44540002 Dash.
To purchase the tool, victims must click "Get Dash Address" and transfer funds with the cryptocurrency wallet address provided. Once payment is made, the website generates a download link for the decryption tool. This may seem to be an easy way to recover files, however, most cyber criminals (ransomware developers) do not keep their promises and cannot be trusted.
Typically, they ignore victims once they receive the cryptocurrency payment. Unfortunately, encryptions caused by ransomware-type programs are impossible to decrypt without using tools held only by ransomware developers. Generally, the only way to regain access to files stored on the computer is to use data backup and restore everything from there.
Ransomware in general
Wesker Encrypter is one of many programs of this type. There are hundreds and the number is growing daily. SYSTEM FAILURE, DrWeb, and Bufas are examples of other ransomware-type programs similar to this one. Typically, these programs are created to encrypt data and keep it in that state until a ransom is paid.
Two main differences are cost of decryption (tool/key) and cryptography algorithm that ransomware employs to encrypt files.
Despite any similarities and differences, most of these programs cause encryptions that cannot be decrypted without the involvement of cyber criminals. Therefore, have a backup created and keep it stored on a remote server or unplugged storage device.
How did ransomware infect my computer?
It is unknown which method Wesker Encrypter developers use to proliferate this ransomware, however, most cyber criminals employ spam campaigns, trojans, dubious software download sources, software cracking tools and unofficial (fake) software updaters. With spam campaigns, they send countless emails with attached malicious files (or web links that lead to them).
If opened, the files download and install malware. Most commonly used attachments are Microsoft Office and PDF documents, ZIP, RAR and other archives, executables (like .exe files), JavaScript files, and so on. Trojans can be used to proliferate malicious programs only if they are already installed. If installed, they proliferate ransomware and other malicious software.
Malicious programs can also be distributed through untrustworthy software download channels. Some examples are freeware download websites, free file hosting sites, third party downloaders, P2P (Peer-to-Peer) networks such as eMule, and torrent clients. When people download files from these sources, they risk download of malicious files, which are disguised as harmless.
When opened, they install malware. Software 'cracking' tools often install malicious programs rather than allowing users to bypass paid software activation. Fake software updaters usually cause damage by exploiting bugs/flaws of outdated software, or by downloading and installing malicious programs rather than the expected software fixes/updates.
| Name | Wesker Encrypter virus |
| Threat Type | Ransomware, Crypto Virus, Files locker |
| Encrypted Files Extension | No extension. |
| Ransom Demanding Message | !!!INSTRUCTION_RNSMW!!!.txt text file, official website. |
| Ransom Amount | $100/$200 |
| Detection Names | Avast (Win32:RansomX-gen [Ransom]), Combo Cleaner (Gen:Variant.Lazy.279013), ESET-NOD32 (A Variant Of Win32/Filecoder.Wesker.A), Kaspersky (HEUR:Trojan.Win32.Generic), Microsoft (Trojan:Win32/Leonem), 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 Combo Cleaner. |
How to protect yourself from ransomware infections?
Do not open irrelevant emails that contain attachments/web links and are sent from unknown, suspicious addresses. These emails may seem to be legitimate and important, however, this is not enough for them to be trusted.
Various third party downloaders, installers, unofficial websites, Peer-to-Peer networks (and other similar sources) should not be used to download or install software. Download using official websites and direct links. Installed software should be updated, however, the only safe way to achieve this is by using tools/implemented functions provided by official software developers.
Using software cracking tools is a cyber crime and, therefore, these tools should not be used to bypass paid activation. Furthermore, they can be used to proliferate viruses. Finally, have reputable anti-virus or anti-spyware software installed and enabled to prevent various threats.
If your computer is already infected with Wesker Encrypter, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate this ransomware.
Screenshot the "!!!INSTRUCTION_RNSMW!!!.txt" file:
Text presented in Wesker Encrypter ransomware text file "!!!INSTRUCTION_RNSMW!!!.txt":
________________
Hello, dear friend ?
All your work and personal files have been encrypted by the
W E S K E R E N C R Y P T E R.Your files are NOT damaged, they are modified only. They can be decrypted.
How to decrypt files?
You have to buy special software ó ´Wesker Decryptorª.
The method of payment, the cost of the decryptor and other answers to the questions, you can find on your unique page.
For this:
[1] Download ´Tor-browserª ( https://www.torproject.org/download/download-easy.html )
[2] Install and run it
[3] Open the website in the ´Tor-browserª: http://wesker7b27uikjn3.onion/index.php?
[4] Follow the further instructions.
IMPORTANT:
* Do not try to reinstall the OS, restore and decrypt the files yourself. All attempts will be unsuccessful.
** You can get the decryptor ONLY on the specified link.
*** If you do not have the ability to use ´Tor-browserª, use the ´Telegramª to get the actual list of web mirrors: hxxps://t.me/tor2web_wesker_______________
Screenshot of Wesker Encrypter website opened with Tor browser:
Text presented in this website:
Attention!
All your documents, databases, photos and other files have been encrypted!
To decrypt your files you need to buy the special software ´Wesker Decryptorª. After the expiration of 7 days, the cost is doubled.
Current price is: 0.72270001 DASH ~ 100$
We are accepting payment to Dash Coin wallet:You have paid: 0 DASH (0.72270001 DASH is left)
Next price will be (x2): 1.44540002 DASH ~ 200$ after
FAQs
What happened to my files?
Your files are encrypted. They are NOT damaged, they are modified only. They can be decrypted.
I don't know what is DASH. How can I pay?
Dash - this digital cash, cryptocurrency. The list of the most popular exchange services.
Buying cryptocurrency in my country is illegal, I do not want to break the law. What should I do?
DASH - completely anonymous cryptocurrency, the state cannot control in it the movement of funds. In addition, you can buy cryptocurrency in services that are located in another country.
The support is not responding to my chat messages. Why?
The operator may have chosen not to respond to any messages, or at the moment he is busy.
Why do I have to pay for something?
You or your company have insufficient security in network. You pay for decrypting your files.
I have no money. Can I get the decryptor for free?
No. The provision of free decryption is not provided.
Do you guarantee that I can decrypt the files after pay?
Yes. Getting the decryptor and decrypting files is a fully automatic process.
You need:
replenish address the DASH-wallet specified on the landing page
wait for the confirmation of the transaction
After which you will be given a link to download the decryptor. It remains to run the decryptor on the infected machine and wait for the files decryption operation to complete.
The address DASH-wallet has changed to another. I was going to pay. What happened?
Within 30 minutes you must pay the required amount to the address of the DASH-wallet. If this has not been done, in 30 minutes this address will be transferred to another client.
To get the address again, press the button - Get Dash Address.
There are 5 minutes left on the timer. Can I pay, the payment will not be lost?
You can pay, your account will be linked to the address DASH-wallet immediately after commit the transaction (and also, time will be added to confirm the transaction).
But, to make transaction 1-3 minutes before the end of the timer is not recommended!
I paid, but did not receive the decryptor. ???
It is possible, ONLY if you have paid lower amount than specified in the request.
See value: You have paid x.x DASH (x.x DASH is left)
Appearance of Wesker Encrypter website (GIF):
Wesker Encrypter ransomware removal:
Instant automatic malware removal:
Manual threat removal might be a lengthy and complicated process that requires advanced IT skills. Combo Cleaner is a professional automatic malware removal tool that is recommended to get rid of malware. Download it by clicking the button below:
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Video suggesting what steps should be taken in case of a ransomware infection:
Quick menu:
- What is Wesker Encrypter virus?
- STEP 1. Reporting ransomware to authorities.
- STEP 2. Isolating the infected device.
- STEP 3. Identifying the ransomware infection.
- STEP 4. Searching for ransomware decryption tools.
- STEP 5. Restoring files with data recovery tools.
- STEP 6. Creating data backups.
If you are a victim of a ransomware attack we recommend reporting this incident to authorities. By providing information to law enforcement agencies you will help track cybercrime and potentially assist in the prosecution of the attackers. Here's a list of authorities where you should report a ransomware attack. For the complete list of local cybersecurity centers and information on why you should report ransomware attacks, read this article.
List of local authorities where ransomware attacks should be reported (choose one depending on your residence address):
USA - Internet Crime Complaint Centre IC3
United Kingdom - Action Fraud
Spain - Policía Nacional
France - Ministère de l'Intérieur
Germany - Polizei
Italy - Polizia di Stato
The Netherlands - Politie
Poland - Policja
Portugal - Polícia Judiciária
Isolating the infected device:
Some ransomware-type infections are designed to encrypt files within external storage devices, infect them, and even spread throughout the entire local network. For this reason, it is very important to isolate the infected device (computer) as soon as possible.
Step 1: Disconnect from the internet.
The easiest way to disconnect a computer from the internet is to unplug the Ethernet cable from the motherboard, however, some devices are connected via a wireless network and for some users (especially those who are not particularly tech-savvy), disconnecting cables may seem troublesome. Therefore, you can also disconnect the system manually via Control Panel:
Navigate to the "Control Panel", click the search bar in the upper-right corner of the screen, enter "Network and Sharing Center" and select search result: 
Click the "Change adapter settings" option in the upper-left corner of the window: 
Right-click on each connection point and select "Disable". Once disabled, the system will no longer be connected to the internet. To re-enable the connection points, simply right-click again and select "Enable". 
Step 2: Unplug all storage devices.
As mentioned above, ransomware might encrypt data and infiltrate all storage devices that are connected to the computer. For this reason, all external storage devices (flash drives, portable hard drives, etc.) should be disconnected immediately, however, we strongly advise you to eject each device before disconnecting to prevent data corruption:
Navigate to "My Computer", right-click on each connected device, and select "Eject": 
Step 3: Log-out of cloud storage accounts.
Some ransomware-type might be able to hijack software that handles data stored within "the Cloud". Therefore, the data could be corrupted/encrypted. For this reason, you should log-out of all cloud storage accounts within browsers and other related software. You should also consider temporarily uninstalling the cloud-management software until the infection is completely removed.
Identify the ransomware infection:
To properly handle an infection, one must first identify it. Some ransomware infections use ransom-demand messages as an introduction (see the WALDO ransomware text file below).
This, however, is rare. In most cases, ransomware infections deliver more direct messages simply stating that data is encrypted and that victims must pay some sort of ransom. Note that ransomware-type infections typically generate messages with different file names (for example, "_readme.txt", "READ-ME.txt", "DECRYPTION_INSTRUCTIONS.txt", "DECRYPT_FILES.html", etc.). Therefore, using the name of a ransom message may seem like a good way to identify the infection. The problem is that most of these names are generic and some infections use the same names, even though the delivered messages are different and the infections themselves are unrelated. Therefore, using the message filename alone can be ineffective and even lead to permanent data loss (for example, by attempting to decrypt data using tools designed for different ransomware infections, users are likely to end up permanently damaging files and decryption will no longer be possible even with the correct tool).
Another way to identify a ransomware infection is to check the file extension, which is appended to each encrypted file. Ransomware infections are often named by the extensions they append (see files encrypted by Qewe ransomware below).
This method is only effective, however, when the appended extension is unique - many ransomware infections append a generic extension (for example, ".encrypted", ".enc", ".crypted", ".locked", etc.). In these cases, identifying ransomware by its appended extension becomes impossible.
One of the easiest and quickest ways to identify a ransomware infection is to use the ID Ransomware website. This service supports most existing ransomware infections. Victims simply upload a ransom message and/or one encrypted file (we advise you to upload both if possible).
The ransomware will be identified within seconds and you will be provided with various details, such as the name of the malware family to which the infection belongs, whether it is decryptable, and so on.
Example 1 (Qewe [Stop/Djvu] ransomware):
Example 2 (.iso [Phobos] ransomware):
If your data happens to be encrypted by ransomware that is not supported by ID Ransomware, you can always try searching the internet by using certain keywords (for example, a ransom message title, file extension, provided contact emails, crypto wallet addresses, etc.).
Search for ransomware decryption tools:
Encryption algorithms used by most ransomware-type infections are extremely sophisticated and, if the encryption is performed properly, only the developer is capable of restoring data. This is because decryption requires a specific key, which is generated during the encryption. Restoring data without the key is impossible. In most cases, cybercriminals store keys on a remote server, rather than using the infected machine as a host. Dharma (CrySis), Phobos, and other families of high-end ransomware infections are virtually flawless, and thus restoring data encrypted without the developers' involvement is simply impossible. Despite this, there are dozens of ransomware-type infections that are poorly developed and contain a number of flaws (for example, the use of identical encryption/decryption keys for each victim, keys stored locally, etc.). Therefore, always check for available decryption tools for any ransomware that infiltrates your computer.
Finding the correct decryption tool on the internet can be very frustrating. For this reason, we recommend that you use the No More Ransom Project and this is where identifying the ransomware infection is useful. The No More Ransom Project website contains a "Decryption Tools" section with a search bar. Enter the name of the identified ransomware, and all available decryptors (if there are any) will be listed.
Restore files with data recovery tools:
Depending on the situation (quality of ransomware infection, type of encryption algorithm used, etc.), restoring data with certain third-party tools might be possible. Therefore, we advise you to use the Recuva tool developed by CCleaner. This tool supports over a thousand data types (graphics, video, audio, documents, etc.) and it is very intuitive (little knowledge is necessary to recover data). In addition, the recovery feature is completely free.
Step 1: Perform a scan.
Run the Recuva application and follow the wizard. You will be prompted with several windows allowing you to choose what file types to look for, which locations should be scanned, etc. All you need to do is select the options you're looking for and start the scan. We advise you to enable the "Deep Scan" before starting, otherwise, the application's scanning capabilities will be restricted.
Wait for Recuva to complete the scan. The scanning duration depends on the volume of files (both in quantity and size) that you are scanning (for example, several hundred gigabytes could take over an hour to scan). Therefore, be patient during the scanning process. We also advise against modifying or deleting existing files, since this might interfere with the scan. If you add additional data (for example, downloading files/content) while scanning, this will prolong the process:
Step 2: Recover data.
Once the process is complete, select the folders/files you wish to restore and simply click "Recover". Note that some free space on your storage drive is necessary to restore data:
Create data backups:
Proper file management and creating backups is essential for data security. Therefore, always be very careful and think ahead.
Partition management: We recommend that you store your data in multiple partitions and avoid storing important files within the partition that contains the entire operating system. If you fall into a situation whereby you cannot boot the system and are forced to format the disk on which the operating system is installed (in most cases, this is where malware infections hide), you will lose all data stored within that drive. This is the advantage of having multiple partitions: if you have the entire storage device assigned to a single partition, you will be forced to delete everything, however, creating multiple partitions and allocating the data properly allows you to prevent such problems. You can easily format a single partition without affecting the others - therefore, one will be cleaned and the others will remain untouched, and your data will be saved. Managing partitions is quite simple and you can find all the necessary information on Microsoft's documentation web page.
Data backups: One of the most reliable backup methods is to use an external storage device and keep it unplugged. Copy your data to an external hard drive, flash (thumb) drive, SSD, HDD, or any other storage device, unplug it and store it in a dry place away from the sun and extreme temperatures. This method is, however, quite inefficient, since data backups and updates need to be made regularly. You can also use a cloud service or remote server. Here, an internet connection is required and there is always the chance of a security breach, although it's a really rare occasion.
We recommend using Microsoft OneDrive for backing up your files. OneDrive lets you store your personal files and data in the cloud, sync files across computers and mobile devices, allowing you to access and edit your files from all of your Windows devices. OneDrive lets you save, share and preview files, access download history, move, delete, and rename files, as well as create new folders, and much more.
You can back up your most important folders and files on your PC (your Desktop, Documents, and Pictures folders). Some of OneDrive’s more notable features include file versioning, which keeps older versions of files for up to 30 days. OneDrive features a recycling bin in which all of your deleted files are stored for a limited time. Deleted files are not counted as part of the user’s allocation.
The service is built using HTML5 technologies and allows you to upload files up to 300 MB via drag and drop into the web browser or up to 10 GB via the OneDrive desktop application. With OneDrive, you can download entire folders as a single ZIP file with up to 10,000 files, although it can’t exceed 15 GB per single download.
OneDrive comes with 5 GB of free storage out of the box, with an additional 100 GB, 1 TB, and 6 TB storage options available for a subscription-based fee. You can get one of these storage plans by either purchasing additional storage separately or with Office 365 subscription.
Creating a data backup:
The backup process is the same for all file types and folders. Here’s how you can back up your files using Microsoft OneDrive
Step 1: Choose the files/folders you want to backup.
Click the OneDrive cloud icon to open the OneDrive menu. While in this menu, you can customize your file backup settings.
Click Help & Settings and then select Settings from the drop-down menu.
Go to the Backup tab and click Manage backup.
In this menu, you can choose to backup the Desktop and all of the files on it, and Documents and Pictures folders, again, with all of the files in them. Click Start backup.
Now, when you add a file or folder in the Desktop and Documents and Pictures folders, they will be automatically backed up on OneDrive.
To add folders and files, not in the locations shown above, you have to add them manually.
Open File Explorer and navigate to the location of the folder/file you want to backup. Select the item, right-click it, and click Copy.
Then, navigate to OneDrive, right-click anywhere in the window and click Paste. Alternatively, you can just drag and drop a file into OneDrive. OneDrive will automatically create a backup of the folder/file.
All of the files added to the OneDrive folder are backed up in the cloud automatically. The green circle with the checkmark in it indicates that the file is available both locally and on OneDrive and that the file version is the same on both. The blue cloud icon indicates that the file has not been synced and is available only on OneDrive. The sync icon indicates that the file is currently syncing.
To access files only located on OneDrive online, go to the Help & Settings drop-down menu and select View online.
Step 2: Restore corrupted files.
OneDrive makes sure that the files stay in sync, so the version of the file on the computer is the same version on the cloud. However, if ransomware has encrypted your files, you can take advantage of OneDrive’s Version history feature that will allow you to restore the file versions prior to encryption.
Microsoft 365 has a ransomware detection feature that notifies you when your OneDrive files have been attacked and guide you through the process of restoring your files. It must be noted, however, that if you don’t have a paid Microsoft 365 subscription, you only get one detection and file recovery for free.
If your OneDrive files get deleted, corrupted, or infected by malware, you can restore your entire OneDrive to a previous state. Here’s how you can restore your entire OneDrive:
1. If you're signed in with a personal account, click the Settings cog at the top of the page. Then, click Options and select Restore your OneDrive.
If you're signed in with a work or school account, click the Settings cog at the top of the page. Then, click Restore your OneDrive.
2. On the Restore your OneDrive page, select a date from the drop-down list. Note that if you're restoring your files after automatic ransomware detection, a restore date will be selected for you.
3. After configuring all of the file restoration options, click Restore to undo all the activities you selected.
The best way to avoid damage from ransomware infections is to maintain regular up-to-date backups.
Frequently Asked Questions (FAQ)
How was my computer hacked and how did hackers encrypt my files?
Typically, users infect computers with ransomware via links or files received via email, websites hosting pirated software, fake installers, files downloaded from P2P networks, third-party downloaders, free file hosting sites, etc. Threat actors use different ways to trick users into downloading and executing ransomware.
How to open files encrypted by Wesker Encrypter?
These files cannot be opened until they are decrypted with the right decryption tool.
Where should I look for free decryption tools for Wesker Encrypter ransomware?
In case of a ransomware attack you should check the No More Ransom project website (more information above).
I can pay you a lot of money, can you decrypt files for me?
We do not provide a decryption service. Unfortunately, it is rarely possible to decrypt files without tools purchased from cybercriminals. Free data decryption is only possible when ransomware is flawed. It is strongly recommended not to pay third parties for data decryption. Usually, they act as a man-in-the-middle or attempt to scam victims.
Will Combo Cleaner help me remove Wesker Encrypter ransomware?
Yes, Combo Cleaner will scan your computer and remove active ransomware. It is important to remove ransomware because it prevents further encryptions. Unfortunately, antivirus programs cannot decrypt encrypted files. These files remain encrypted even after ransomware removal.
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