Norvas ransomware: what it is and how to remove it
Norvas virus – ransomware that marks data with .norvas appendix when the original code of the file gets changed. This process is called encryption, and it is the primary purpose of such malware.
Facts checked October 6, 2026. Removal steps tested on Windows 11 (26H2) and checked against Microsoft's and the browser makers' current documentation. Sections marked as our earlier report are the original text: they describe the threat as it was then and have not been reviewed since. The 2026 status, the removal steps and the questions are current.
Automatic
Get a free scan and check if your PC is infected.
Fortect finds malware, unwanted programs and the Windows damage they leave behind, and repairs it in one pass.
A free scan checks for the encryptor still on the PC; it does not decrypt .norvas files.
Do it yourself · free Remove Norvas ransomware yourself 6 steps, about 18 minutes, no software needed.
Start the steps
Norvas ransomware: summary
| Distribution | Spam email attachments with infected documents |
|---|---|
| Name | Norvas ransomware |
| Type | Cryptovirus |
| File marker | .norvas |
| Family | Djvu ransomware |
| Contact emails | vengisto@india.com, vengisto@firemail.cc |
| Removal | Scan the PC with security software to find and remove the malware and anything installed with it. Fortect scans Windows for malware and repairs the system files and settings it damaged. Remove it nowTo use the full-featured product, you have to purchase a license for Fortect. The scan is free. |
Show 14 more facts
| Ransom note | _readme.txt |
|---|---|
| Ransom amount | $980 |
| Decryption | STOP virus decryptor is often updated with new offline IDs, so check the possibility to reverse affected files |
| Detection names | No Microsoft detection name is known |
| Encrypted file extension | .norvas |
| Decryptor | No free decryptor is known for this variant; check No More Ransom (nomoreransom.org) for updates |
| Damage | Not recorded in the old report |
| Symptoms | Files renamed with a new extension and a ransom note left in folders |
| Evidence | 5 write-ups by security sites; no sample analysed yet |
| Encrypted files | .norvas |
| Attacker contacts | vengisto@india.com |
| Free decryptor | No free decryptor is known (checked 6 October 2026) |
| First seen | 30 April 2019 |
| Facts checked | 6 October 2026 |
- File extension:
.norvas - Note file:
_readme.txt - Contact:
vengisto@india.com
From our report of Apr 2019 · not reviewed since
More from our earlier report on Norvas ransomware
- Remove Norvas ransomware with reputable anti-malware, clean the machine and virus damage with
How Norvas ransomware behaves
From our report of Apr 2019 · not reviewed since
Norvas is the ransomware that encourages victims to pay the ransom by lowering the price as other recent STOP virus versions
Norvas virus – ransomware that marks data with .norvas appendix when the original code of the file gets changed.
This process is called encryption, and it is the primary purpose of such malware. However, cryptovirus has more functions than the file-locking itself. Since this is a version of a well-known Djvu ransomware, it hails from the family of STOP ransomware.
Norvas files virus has been quite active since its release, so there is no surprise that cybersecurity experts are working on the decryption key which is highly awaited by the virus victims. Thanks to Michael Gillespie, you can try using STOPDecryptor to recover encrypted files. However, some users claim that the tool is working only with Offline ID keys.
The one significant similarity between other versions from the same virus family is the ransom note - _readme.txt. It gets delivered together with the same message offering to 50% off discount for the ransom. Filename and the content haven't changed since March.
However, the thing that keeps changing is contact information. Norvas virus developers can be contacted via vengisto@india.com, vengisto@firemail.cc emails. However, we are not recommending to reach these people since it may lead to data loss or infiltration of more significant malware.
Norvas ransomware virus is the cyber threat that focuses on encrypting pictures, documents, databases, video, audio files or even data stored on a cloud service. When the encoding process goes as planned .norvas extension marks every file that got affected. It indicates which data became useless and unreachable.
The file encryption is the first but not the only process that Norvas ransomware performs on the affected machine. When data gets locked, ransom note gets delivered in every folder containing encrypted files and the _readme.txt file shows the following message:
However, after that Norvas ransomware focuses on system alterations. To ensure the prominent infiltration, this threat alters existing registry keys or even adds new, so every time the machine is reloaded the malware runs uninterrupted. Also, adding or removing those meanings can affect processes like security programs and AV tools.
All of these changes make Norvas ransomware removal difficult and makes victims believe that paying is the only solution. Unfortunately, paying the demanded amount may not help with your files because often cybercriminals as such disappear after the payment and data remain locked and useless. Experts note that paying shouldn't be considered as a first option.
Although Norvas ransomware is not much changed from the other versions in the family, developers have unique features added to every new variant. This time, in the ransom note cybercriminals note their Telegram account handle @datarestore and this way offers victims to contact malware creators.
Avoid any contact between you and virus developers because these criminals can send you a file with malicious script and infect the system with other malware or demand more money. You better remove Norvas ransomware with anti-malware tools and then focus on data recovery.
For data recovery, you either need file backups on an external device or cloud service or file restoring software. Make sure to remove all Norvas ransomware virus damage, fix possible issues and clean the system thoroughly with . Then your files cannot get affected by the ransomware again.
The Norvas ransomware note
ATTENTION!
Do not worry my friend, you can return all your files!
All your files are encrypted with the unique key.
Decrypt tool for you.
This software will decrypt all your encrypted files.
What guarantees you have?
You can send your PC and we decrypt it for free.
But we can decrypt only 1 file for free. File must not contain valuable information.
You can get a video of the decrypt tool:
https://we.tl/t-pPLXOv9XTI
Price is $ 980.
Discount 50% available if you contact us first 72 hours, that's price for you is $ 490.
Please note that you never restore your data without payment.
Check your e-mail "Spam" or "Junk" folder if you don't get it answer more than 6 hours.
To get this software you need to write on our e-mail:
vengisto@firemail.cc
Reserve e-mail address to contact us:
vengisto@india.com
Support Telegram account:
@datarestore
Your personal ID:
How to remove Norvas ransomware
Tools you'll need
All of these are free except where noted. Download them on a clean device if the infected PC is offline.
- A USB stick: to keep the ransom note, two or three encrypted files and screenshots off the infected PC.
- Microsoft Defender Offline: built into Windows 11 and Windows 10; scans before Windows starts, so running malware cannot hide.
- Microsoft Safety Scanner: a second, portable scanner with current signatures; each download works for 10 days.
- ID Ransomware: identifies the family from the note and one encrypted file and says whether a decryptor exists.
- No More Ransom: the free decryptors from police and security companies; check it again every few months.
- Fortect (optional): scans Windows for malware and repairs the system files and settings it damaged. The free scan is in the box above.
How to remove Norvas ransomware and get your files back
Work in this order.
Disconnecting comes first, removal comes before any restore, and nothing here asks you to contact the attackers.
Step 1: Disconnect the PC and unplug backup drives
Norvas ransomware encrypts everything it can reach, including drives and shares you connect later. Cut the network first: cable out, or Wi-Fi off from the taskbar.
Then unplug every USB stick and backup disk and pause cloud sync, so the encrypted versions do not replace your online copies. Do not reconnect any of them until the ransomware is removed from the Windows 11 or Windows 10 PC.
Windows 11: turn off Wi-Fi to take the PC offline. Full procedure with screenshots: Ransomware: first steps, finding a decryptor and recovering files
Step 2: Save the ransom note and confirm the family
Copy
_readme.txtand one or two files ending in.norvasto a USB stick, and leave the originals where they are.From another device, upload the note and a sample file to ID Ransomware or No More Ransom's Crypto Sheriff, which name the family from the note, the extension and the file structure.
Write down the contact address and your personal ID from the note, because a decryptor or the police may ask for them.
Warning: Never contact the attackers from the infected Windows 11 or Windows 10 PC.
Windows 11: the ransom note and encrypted files to copy for identification. Full procedure with screenshots: Ransomware: first steps, finding a decryptor and recovering files
Step 3: Check for a free decryptor
For Norvas ransomware, no free decryptor is known (checked 6 October 2026). Search the family name in the No More Ransom decryption tools list and in the free decryptors of Emsisoft, Avast and Kaspersky, because new tools appear years after an attack.
Important: Keep the encrypted files even if nothing works today, and do not pay before every free option is ruled out: payment does not guarantee a working key.
Decryptors run on Windows 11 and Windows 10, but only after the ransomware itself is removed.
Full procedure with screenshots: Ransomware: first steps, finding a decryptor and recovering files
Step 4: Remove the ransomware before you restore or decrypt
Restoring or decrypting files while Norvas ransomware still runs lets it encrypt them again. Run a Full scan in Windows Security > Virus & threat protection > Scan options, then the Microsoft Defender Antivirus (offline scan).
If the ransomware blocks Windows Security, start Safe Mode with Networking and scan from there. Some families install a password stealer as well, so let both scans finish on Windows 11 or Windows 10.
Windows 11: Windows Security > Virus & threat protection > Scan options. Full procedure with screenshots: Run a Microsoft Defender Offline scan
Step 5: Look for shadow copies of the files
Open Command Prompt as administrator and run
vssadmin list shadows. If it lists copies dated before the attack, right-click a folder with encrypted files in File Explorer, choose Properties > Previous Versions, and open or restore a version from before that date.ShadowExplorer, a free tool, shows the same copies when the tab is empty or hidden. Most current families delete shadow copies, so an empty list is normal, but the check takes two minutes on Windows 11 or Windows 10.
Windows 11: vssadmin list shadows shows whether shadow copies exist. Full procedure with screenshots: Ransomware: first steps, finding a decryptor and recovering files
Step 6: Restore the files from a backup or recover deleted originals
Restore from an external backup, File History or OneDrive's version history, choosing a date before the attack. Connect the backup drive only after the scans are clean, or the ransomware encrypts it too.
If there is no backup, file recovery software can sometimes find the deleted originals, because some ransomware writes an encrypted copy and deletes the original file.
Stop writing to the drive and try recovery on Windows 11 or Windows 10 before new files overwrite the space.
Full procedure with screenshots: Recover deleted files (Recycle Bin, backups, OneDrive) On uGetFix
Instructions for each browser and system
The detailed steps for every browser and system this guide covers. Open the one you use.
Manual removal using Safe Mode
Important! →
Manual removal guide might be too complicated for regular computer users. It requires advanced IT knowledge to be performed correctly (if vital system files are removed or damaged, it might result in full Windows compromise), and it also might take hours to complete. Therefore, we highly advise using the automatic method provided above instead.
Step 1. Access Safe Mode with Networking
Manual malware removal should be best performed in the Safe Mode environment.
Windows 7 / Vista / XP
- Click Start > Shutdown > Restart > OK.
- When your computer becomes active, start pressing F8 button (if that does not work, try F2, F12, Del, etc. - it all depends on your motherboard model) multiple times until you see the Advanced Boot Options window.
- Select Safe Mode with Networking from the list.
Windows 10 / Windows 8
- Right-click on Start button and select Settings.
- Scroll down to pick Update & Security.
- On the left side of the window, pick Recovery.
- Now scroll down to find Advanced Startup section.
- Click Restart now.
- Select Troubleshoot.
- Go to Advanced options.
- Select Startup Settings.
- Press Restart.
- Now press 5 or click 5) Enable Safe Mode with Networking.
Step 2. Shut down suspicious processes
Windows Task Manager is a useful tool that shows all the processes running in the background. If malware is running a process, you need to shut it down:
- Press Ctrl + Shift + Esc on your keyboard to open Windows Task Manager.
- Click on More details.
- Scroll down to Background processes section, and look for anything suspicious.
- Right-click and select Open file location.
- Go back to the process, right-click and pick End Task.
- Delete the contents of the malicious folder.
Step 3. Check program Startup
- Press Ctrl + Shift + Esc on your keyboard to open Windows Task Manager.
- Go to Startup tab.
- Right-click on the suspicious program and pick Disable.
Step 4. Delete virus files
Malware-related files can be found in various places within your computer. Here are instructions that could help you find them:
- Type in Disk Cleanup in Windows search and press Enter.
- Select the drive you want to clean (C: is your main drive by default and is likely to be the one that has malicious files in).
- Scroll through the Files to delete list and select the following:
Temporary Internet Files
Downloads
Recycle Bin
Temporary files - Pick Clean up system files.
- You can also look for other malicious files hidden in the following folders (type these entries in Windows Search and press Enter):
%AppData%
%LocalAppData%
%ProgramData%
%WinDir%
After you are finished, reboot the PC in normal mode.
From our report of Apr 2019 · not reviewed since
Norvas virus decryption?
Data recovery after Norvas ransomware removal can be achieved with data backups, file recovery software or similar tools and features.
Also, STOP virus decryptor can be helpful for virus decryption because researchers keep an eye on these virus developers and their activity. Malware victims submit samples and ID keys, so more victims can get help. This tool works for Offline ID: 1OcNMvbG9a2vBz0BdsXRX88kjuVX9ku4EmR64St1 with .norvas file appendix.
When the version of a virus that affected your machine is newer than the researcher submissions the tool may not work at first. Especially when Spring 2019 is a busy time for developers behind this malware because they release a version every week or so.
In the meantime, while you wait for the needed update, you should focus on learning about the particular threat and trying to remove Norvas ransomware from the machine.
From our report of Apr 2019 · not reviewed since
Spam emails containing infected attachments distribute malware
Exploiting system vulnerabilities, using exploit kits or installing harmful software can also be considered ways to spread cryptovirus.
However, the primary technique still is considered to be spam emails and macro-filled documents as attachments.
Malicious actors send emails with forged information tricking users into believing that the email is from a company like DHL, FedEx, or eBay and contains important financial information. However, the minute received email gets opened and attachment downloaded on the computer, the malicious script gets loaded on the system.
Notification may claim that the package is not coming to you and you can see all the details if you pres enable the content on the PDF file or a link. When you do so malicious macros get triggered, and the computer gets infected with direct ransomware or malware designed to spread crypto malware further.
If you want to avoid such infiltrations, you should pay more attention to emails you receive and open. Clean the email box more often and delete emails you weren't expecting to get or that seem suspicious and contains questionable attachments.
From our report of Apr 2019 · not reviewed since
Stop Norvas ransomware virus and clean the system fully
Make sure to remove Norvas ransomware as soon as possible, so it affects less significant parts of your machine.
When relevant registries or programs get altered or deleted your system starts working sluggishly or even crashes when critical processes cannot be launched.
Norvas ransomware virus can install other programs on the affected computer, so automatic system cleaning processes are recommended instead of manual virus termination. You need to find all associated files, so get , , and clean the machine entirely.
This automatic Norvas ransomware removal method with anti-malware tools and professional tools helps to check the system entirely and to terminate all threats at once. Scan the system twice or use a few different tools to make sure the machine is cleaned completely.
[GI=method-1]Use anti-virus program to remove Norvas ransomware, but first reboot the machine in Safe Mode with Networking
[GI=method-2]System Restore can also give the advantage while removing Norvas ransomware. This feature can recover a machine to the previous point
When Norvas ransomware encrypts files, it makes them useless and locked.
Restore data using Windows Previous Versions feature
You should enable System Restore first if you want Windows Previous Versions feature to work for Norvas ransomware affected files
ShadowExplorer method for file restoring
Get rid of Norvas ransomware and recover data using ShadowExplorer. This works when ransomware leaves Shadow Volume Copies untouched
Try the decryption tool for Norvas ransomware
Thanks to security researcher Michael Gillespie, victims of this ransomware virus version can now try recovering their files with the help of STOPDecrypter (direct download link). However, note that the virus does not work with every version as its developers keep changing the code of the malware.
Report it and recover your files
Report it
Report the attack even if you do not expect the files back: insurers and banks ask for the report number, and police use the contacts in the note to link cases.
- United States
- FBI IC3 · FTC ReportFraud
- United Kingdom
- Report Fraud (formerly Action Fraud) · NCSC
- Australia
- ReportCyber (ASD)
- EU countries
- Europol: national reporting sites
Give the victim ID, the note and the date the files were encrypted. A business that holds personal data may also have to notify its data protection authority, in the EU within 72 hours.
Make the next attack harmless
Norvas ransomware could only hurt the files that had no second copy, and the signs (files that end in .norvas and no longer open) showed exactly which ones those were.
The 3-2-1 rule fixes that:
- three copies
- two media
- one disconnected
A practical version for a home PC: OneDrive or another cloud backup with version history, plus an external disk that you plug in once a week for File History and then unplug. Test a restore now and then by opening a few files from the backup on another device.
Details, schedules and what not to back up are in our 3-2-1 backup guide for Windows.
Do not let government spy on you
The government has many issues in regards to tracking users' data and spying on citizens, so you should take this into consideration and learn more about shady information gathering practices.
Avoid any unwanted government tracking or spying by going totally anonymous on the internet.
You can choose a different location when you go online and access any material you want without particular content restrictions. You can easily enjoy internet connection without any risks of being hacked by using VPN.
Control the information that can be accessed by government any other unwanted party and surf online without being spied on. Even if you are not involved in illegal activities or trust your selection of services, platforms, be suspicious for your own security and take precautionary measures by using the VPN service.
Backup files for the later use, in case of the malware attack
Computer users can suffer from data losses due to cyber infections or their own faulty doings.
Ransomware can encrypt and hold files hostage, while unforeseen power cuts might cause a loss of important documents. If you have proper up-to-date backups, you can easily recover after such an incident and get back to work. It is also equally important to update backups on a regular basis so that the newest information remains intact - you can set this process to be performed automatically.
When you have the previous version of every important document or project you can avoid frustration and breakdowns. It comes in handy when malware strikes out of nowhere. Use for the data restoration process.
Questions about Norvas ransomware
Is there a decryptor for .norvas files?
That depends on the family behind the .norvas extension, which this guide cannot confirm yet from the reports alone. Check No More Ransom and ID Ransomware with your ransom note and one encrypted file; they list families with free tools.
If none exists today, keep the encrypted files and a copy of the note on a separate drive, because decryptors are sometimes published months later after flaws are found or servers are seized. Never buy a decryptor from a website that is not the security company that made it.
How do I open .norvas files?
You cannot open them by renaming or by choosing another program. The .norvas ending shows that Norvas ransomware encrypted the content, and only the matching key can reverse it. Renaming a file back to .docx or .jpg changes nothing except the icon, and it can confuse a future decryptor, so leave the names as they are.
To get the content back, use a backup, an unencrypted copy elsewhere, or a decryptor listed on No More Ransom if one exists for Norvas ransomware. Store the encrypted files on an external disk until then.
How did Norvas ransomware get on my computer?
The way Norvas ransomware spreads has not been documented yet, so look at your own recent activity. On home PCs, ransomware most often comes with cracked programs, game cheats, key generators and fake updates, or with an e-mail attachment that was opened. On business networks, attackers usually log in through Remote Desktop with a stolen or guessed password.
Think back to what was downloaded or installed in the days before files that end in .norvas and no longer open, and check the Downloads folder and Installed apps sorted by date. Keep anything suspicious for your report, but do not run it again.
Should I pay the ransom?
We advise against it, and so do the FBI, Europol and national cyber agencies. Payment does not guarantee a working tool: some attackers never reply, some tools damage files, and some variants have no decryptor at all. Paying also funds further attacks and can make you a target again.
Before considering payment, try every recovery option in this guide and report the attack. Companies must involve their legal adviser and insurer, because payments to sanctioned groups can be illegal. If files are truly irreplaceable, store the encrypted copies and wait; decryptors sometimes appear later.
Can a data-recovery company decrypt my files for a fee?
Only if a decryptor already exists or the company pays the attackers for you. Some "ransomware recovery" services advertise that they can decrypt families with no known flaw; in practice they negotiate with the attackers and add their own fee. Others use the same free tools listed on No More Ransom.
Before you hire anyone, ask in writing how they will recover the files, whether they will contact the attackers and what happens if they fail. A legitimate service answers clearly. If a free decryptor exists for your family, you can run it yourself.
Did Norvas ransomware steal my files or passwords?
We do not know yet. Nothing published so far shows data theft by Norvas ransomware, but the only confirmed sign is files that end in .norvas and no longer open, which says nothing about what happened before. Many current ransomware attacks copy files or run a password stealer first, so it is wise to act as if they did.
From a clean device, change the passwords that were saved in the browsers on this PC, starting with e-mail and banking, sign out of all sessions and turn on two-step verification. Watch bank statements and account activity for the next few weeks.
Is Norvas ransomware the same as other ransomware with a similar name?
Not necessarily. Ransomware names come from the file extension, the note or a word in the code, so unrelated families often end up with similar names, and one family can appear under several names. The difference matters: a decryptor or advice for one family does not fit another and can damage files.
Compare the ending added to your files and the exact name of the note with the summary table at the top of this guide, then upload the note and one encrypted file to ID Ransomware from a clean device. If the result names another family, follow the guide for that family instead.
Should I open _readme.txt?
Reading it is fine if you open it in Notepad. A plain text _readme.txt cannot harm the PC. Be careful with notes in HTA or HTML format: double-clicking those runs them in a window that can contain scripts, so right-click and choose Open with > Notepad instead.
The note tells you the contact addresses, the claimed amount and the deadline. Do not visit links or write to the addresses from this PC. Use the note to identify the family and check for a free decryptor first.
Will .norvas spread to my other drives?
It can. Ransomware encrypts every drive and network share it can reach while it runs, so external disks, USB sticks and shared folders connected during the attack may also have files ending in .norvas. Disconnect everything now, then check each device from a clean computer.
Do not plug a backup drive into the infected PC until the ransomware has been removed with an offline scan. Cloud folders such as OneDrive sync the encrypted versions, but they keep earlier versions you can usually restore.
Will Fortect remove Norvas ransomware?
Fortect scans Windows for malware and unwanted programs and repairs the system files and settings they change, and its free scan shows what it finds on your PC before you decide anything.
For Norvas ransomware, follow the plan above as well: the browser steps take back permissions and settings that no scanner treats as a threat, and uninstalling the program that brought it removes the source.
Run Microsoft Defender's full scan and, if anything was found, its offline scan as a second opinion. If the symptoms are gone after the plan and both scans are clean, there is nothing more to do.
Sources
- Wikipedia: Encryption (read October 6, 2026)
- Virusai: Virusai (read October 6, 2026)
- Howtogeek: Macros explained: why Microsoft Office files can be dangerous (read October 6, 2026)
- CISA: StopRansomware (read October 6, 2026)
- No More Ransom (read October 6, 2026)