Fopa file virus: what it is and how to remove it

Fopa ransomware is a virus that attacks Windows computers by using various infiltration methods. Once inside, it uses an encryption algorithm to lock up all documents, archives, videos, music, and other files, adding .fopa extension to them.

Facts checked October 7, 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 .fopa files.

Remove it nowTo use the full-featured product, you have to purchase a license for Fortect. The scan is free.

Do it yourself · free Remove Fopa file virus yourself 6 steps, about 18 minutes, no software needed.

Start the steps
Fopa file virus: fopa ransomware virus
Fopa file virus as our 2022 report showed it.

Fopa file virus: summary

DistributionFiles triggering the payload launch can be spread with pirating software and via spam email campaigns and the attachments
NameFopa file virus
TypeRansomware, crypto-virus, file locking virus
Malware familyDjvu ransomware
ExtensionFiles appended with .fopa
Ransom note_readmetxt; the text of the note is not in our records
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 12 more facts
Contactsupport@sysmail.ch, helprestoremanager@airmail.cc
Detection namesNo Microsoft detection name is known
Encrypted file extension.fopa
DecryptorNo free decryptor is known for this variant; check No More Ransom (nomoreransom.org) for updates
DamageNot recorded in the old report
SymptomsFiles renamed with a new extension and a ransom note left in folders
Evidence4 write-ups by security sites; no sample analysed yet
Encrypted files.fopa
Attacker contactssupport@sysmail.ch
Free decryptorNo free decryptor is known (checked 7 October 2026)
First seen7 March 2022
Facts checked7 October 2026
  • File extension: .fopa
  • Note file: _readme.txt
  • Contact: support@sysmail.ch

From our report of Mar 2022 · not reviewed since

More from our earlier report on Fopa file virus

  • Perform a full system scan with powerful security software, such as anti-malware tools and antivirus applications.
  • Such programs can find the threat and related files.
  • Malware can seriously tamper with Windows systems, causing errors, crashes, lag, and other stability issues after it is terminated.

How Fopa file virus behaves

From our report of Mar 2022 · not reviewed since

Fopa ransomware is a cyber infection that might result in complete data compromise

Fopa ransomware is a virus that attacks Windows computers by using various infiltration methods.

Once inside, it uses an encryption algorithm to lock up all documents, archives, videos, music, and other files, adding .fopa extension to them. After that, ransomware delivers a ransom note _readme.txt text file, which includes instructions on how to recover the encrypted data.

According to Fopa virus authors, victims need to contact them via support@sysmail.ch, helprestoremanager@airmail.cc email, and provide their personal ID. Once that is done, users should receive further instructions to proceed with the payment, provided in bitcoin cryptocurrency. Nonetheless, we do not recommend contacting the attackers because they might not deliver the required decryption tool. Check out the alternative methods we provide below instead.

Fopa ransomware is a cryptovirus that belongs to a malware family known as Djvu ransomware. This malware encrypts all the important files on a Windows computer and restricts access to them. While it is true that Fopa virus files require a unique decryption key to unlock them, experts recommend not paying the ransom, as cybercriminals might not keep their promises, resulting in financial losses.

Especially when the family is known for creating new versions that are no longer decryptable. Criminals controlling the behavior can create various issues and are evolving.

Fopa file virus: fopa ransomware virus
Fopa file virus in our 2022 report.

From our report of Mar 2022 · not reviewed since

Details on the infection and the virus family

Fopa is a type of virus that is classified as ransomware.

These threats are known for accessing user machines without permission and encrypting all files on them. This way, cybercriminals behind the attack can ask for a ransom payment in return for a unique key.

Fopa ransomware - a computer infection that encrypts all personal files found on the machine and marks them with the unique extension, restricting access to them. Malware then drops a ransom note with a direct message from criminals, which claims that the only way to securely return data is by paying a ransom - it should be delivered using digital bitcoin currency.

The criminal group even offers a discount to trick people or scare them into paying the ransom amount of $980 or $490 in the form of Bitcoin cryptocurrency. These threat families nowadays even use triple or double extortion methods to ensure that people are paying them and criminals can make money from victims worldwide.

This virus derives from a well-known family Djvu/STOP, which was first spotted in 2019 and since then released multiple variants, including Iiof, Qbaa, Vyia.

Fopa file virus: screenshot
Fopa file virus in our 2022 report.

The Fopa file virus ransom note

The note is called _readme.txt.

We did not record the full text of the ransom note in our report.

How to remove Fopa file virus

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 Fopa file virus 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.

  1. Step 1: Disconnect the PC and unplug backup drives

    Fopa file virus 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 quick settings with Wi-Fi turned off
    Windows 11: turn off Wi-Fi to take the PC offline.

    Full procedure with screenshots: Ransomware: first steps, finding a decryptor and recovering files

  2. Step 2: Save the ransom note and confirm the family

    Copy _readme.txt and one or two files ending in .fopa to 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.

    A ransom note text file next to encrypted files in File Explorer
    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

  3. Step 3: Check for a free decryptor

    For Fopa file virus, no free decryptor is known (checked 7 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

  4. Step 4: Remove the ransomware before you restore or decrypt

    Restoring or decrypting files while Fopa file virus 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 Security Scan options with Microsoft Defender Antivirus offline scan selected
    Windows 11: Windows Security > Virus & threat protection > Scan options.

    Full procedure with screenshots: Run a Microsoft Defender Offline scan

  5. 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.

    Command Prompt running vssadmin list shadows
    Windows 11: vssadmin list shadows shows whether shadow copies exist.

    Full procedure with screenshots: Ransomware: first steps, finding a decryptor and recovering files

  6. 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.

Restore Windows "hosts" file to its original state

Some ransomware might modify Windows hosts file in order to prevent users from accessing certain websites online. For example, Djvu ransomware variants add dozens of entries containing URLs of security-related websites, such as 2-spyware.com. Each of the entries means that users will not be able to access the listed web addresses and will receive an error instead.

Here's an example of "hosts" file entries that were injected by ransomware:

Hosts file

In order to restore your ability to access all websites without restrictions, you should either delete the file (Windows will automatically recreate it) or remove all the malware-created entries. If you have never touched the "hosts" file before, you should simply delete it by marking it and pressing Shift + Del on your keyboard. For that, navigate to the following location:

C:\\Windows\\System32\\drivers\\etc\\

Delete Windows "hosts" file

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

  1. Click Start > Shutdown > Restart > OK.
  2. 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.
  3. Select Safe Mode with Networking from the list.Windows 7/XP

Windows 10 / Windows 8

  1. Right-click on Start button and select Settings.
    Settings
  2. Scroll down to pick Update & Security.
    Update and security
  3. On the left side of the window, pick Recovery.
  4. Now scroll down to find Advanced Startup section.
  5. Click Restart now.
    Reboot
  6. Select Troubleshoot.Choose an option
  7. Go to Advanced options.Advanced options
  8. Select Startup Settings.Startup settings
  9. Press Restart.
  10. Now press 5 or click 5) Enable Safe Mode with Networking.Enable safe mode

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:

  1. Press Ctrl + Shift + Esc on your keyboard to open Windows Task Manager.
  2. Click on More details.
    Open task manager
  3. Scroll down to Background processes section, and look for anything suspicious.
  4. Right-click and select Open file location.
    Open file location
  5. Go back to the process, right-click and pick End Task.
    End task
  6. Delete the contents of the malicious folder.

Step 3. Check program Startup

  1. Press Ctrl + Shift + Esc on your keyboard to open Windows Task Manager.
  2. Go to Startup tab.
  3. Right-click on the suspicious program and pick Disable.
    Startup

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:

  1. Type in Disk Cleanup in Windows search and press Enter.
    Disk cleanup
  2. 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).
  3. Scroll through the Files to delete list and select the following: Temporary Internet Files
    Downloads
    Recycle Bin
    Temporary files
  4. Pick Clean up system files.
    Delete temp files
  5. 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.

Important steps to take before you begin malware removal

File encryption is one component of a ransomware infection, which may also include credential theft, persistence mechanisms, and lateral movement. However, it is important to understand that malware may perform various changes within a Windows operating system, including persistence, scheduled tasks, registry modifications, and security feature tampering.

IMPORTANT for those without backups! →
If you attempt to use security or recovery software immediately, you might permanently damage your files, and even a working decryptor then would not be able to save them.

Before you proceed with the removal instructions below, you should copy the encrypted files onto a separate medium, such as USB flash drive or SSD, and then disconnect them from your computer. The storage device should remain disconnected after copying to prevent accidental modification or deletion. Encrypted data itself does not contain active malicious code, but only the encrypted files—not executables or scripts—should be transferred.

The instructions below might initially seem overwhelming and complicated, but they are not difficult to understand as long as you follow each step in the appropriate order. This comprehensive free guide will help you to handle the malware removal and data recovery process correctly.

If you have any questions, comments, or are having troubles with following the instructions, please do not hesitate to contact us via the Ask Us section.

IMPORTANT! →
It is vital to eliminate malware infection from the computer fully before starting the data recovery process, otherwise ransomware might re-encrypt retrieved files from backups repeatedly.

Restore files using data recovery software

Since many users do not prepare proper data backups prior to being attacked by ransomware, they might often lose access to their files permanently. Paying criminals is also very risky, as they might not fulfill the promises and never send back the required decryption tool.

While this might sound terrible, not all is lost - data recovery software might be able to help you in some situations (it highly depends on the encryption algorithm used, whether ransomware managed to complete the programmed tasks, etc.). Since there are thousands of different ransomware strains, it is immediately impossible to tell whether third-party software will work for you.

Therefore, we suggest trying regardless of which ransomware attacked your computer. Before you begin, several pointers are important while dealing with this situation:

  • Since the encrypted data on your computer might permanently be damaged by security or data recovery software, you should first make backups of it - use a USB flash drive or another storage.
  • Only attempt to recover your files using this method after you perform a scan with anti-malware software.

Install data recovery software

  1. Download .
  2. Double-click the installer to launch it.
  3. Follow on-screen instructions to install the software.Install program
  4. As soon as you press Finish, you can use the app.
  5. Select Everything or pick individual folders where you want the files to be recovered from.Select what to recover
  6. Press Next.
  7. At the bottom, enable Deep scan and pick which Disks you want to be scanned.Select Deep scan
  8. Press Scan and wait till it is complete.Scan
  9. You can now pick which folders/files to recover - don't forget you also have the option to search by the file name!
  10. Press Recover to retrieve your files.Recover files
Create data backups to avoid file loss in the future
Report the incident to your local authorities

Ransomware is a lucrative, highly illegal business, and authorities are actively targeting ransomware operators. The level of investigation and follow-up depends on the country, the scale of the incident, and whether the attack is linked to known ransomware groups. To increase the likelihood of identifying the culprits, the agencies need information. In many cases, reports are used primarily for intelligence gathering, trend analysis, and victim support rather than immediate identification of attackers.

Therefore, by reporting the crime, you could help stop the cybercriminal activities and catch the threat actors. Reporting does not guarantee investigation or recovery of data, but it contributes to broader efforts to track ransomware campaigns. Make sure you include all the possible details, including how did you notice the attack, when it happened, etc. Relevant details may also include affected systems, ransom demands, cryptocurrency wallet addresses, and any communication with the attackers. Additionally, providing documents such as ransom notes, encrypted files, or malware executables would be beneficial.

Law enforcement agencies typically deal with online fraud and cybercrime, although it depends on where you live. Here is the list of local authority groups that handle incidents like ransomware attacks, sorted by country:

  • USA - Internet Crime Complaint Center IC3
  • United Kingdom - ActionFraud
  • Canada - Canadian Anti-Fraud Centre
  • Australia - ScamWatch
  • New Zealand - ConsumerProtection
  • Germany - Polizei
  • France - Ministère de l'Intérieur

Internet Crime Complaint Center IC3

If your country is not listed above, you should contact the local police department or communications center.

From our report of Mar 2022 · not reviewed since

Decryption possibility is slim, but there for some users

The family of Djvu viruses is one that has been known for years now, and it's no stranger to threats.

The new versions come out each week with different names or infection methods, which makes tracking them down difficult as well. The newer types of encryption are more secure than their predecessors because they affect how you can decipher data.

However, both offline keys and online ones may be in use. There's a difference between them that determines the recovery success, though.

When servers cannot communicate with the virus, offline ids become necessary, which means each version has one ID used by all devices affected by it. The different versions of Dis are created when the file virus relies on online IDs. This is the case with Fopa ransomware.

You can try to check if the version that you encountered is possible to decrypt or not. The tool below is still working sometimes. This file virus might not connect to servers and use offline ids for your device, so it's important to know how these work before starting anything else!

If your computer got infected with one of the Djvu variants, you should try using Emsisoft decryptor for Djvu/STOP. It is important to mention that this tool will not work for everyone - it only works if data was locked with an offline ID due to malware failing to communicate with its remote servers.

Even if your case meets this condition, somebody from the victims has to pay criminals, retrieve an offline key, and then share it with security researchers at Emsisoft. As a result, you might not be able to restore the encrypted files immediately.

Thus, if the decryptor says your data was locked with an offline ID but cannot be recovered currently, you should try later. You also need to upload a set of files - one encrypted and a healthy one to the company's servers before you proceed.

  • After pressing Download button, a small pop-up at the bottom, titled decrypt_STOPDjvu.exe should show up - click it.
  • If User Account Control (UAC) message shows up, press Yes.
  • Agree to License Terms by pressing Yes.
  • After Disclaimer shows up, press OK.
  • The tool should automatically populate the affected folders, although you can also do it by pressing Add folder at the bottom.
  • Press Decrypt.
Fopa file virus: emsisoft1
Fopa file virus in our 2022 report.
Fopa file virus: emsisoft2
Fopa file virus in our 2022 report.

From our report of Mar 2022 · not reviewed since

Removing the threat should be a priority

The infection is created with the main purpose of getting funds from victims, so there is no guarantee that payment transfer could help with file recovery.

However, consider the threat as dangerous and extremely malicious. You need to remove the Fopa file virus first before you even attempt file recovery using backups or third-party programs for data recovery.

Removing the infection is not the same as decrypting data or repairing system issues, so you need anti-malware tools like or and a full system scan. Detection rates can indicate that VA engines are successful in such operations, so you can eliminate the threat and properly clear the machine from any leftovers of the virus.

However, there are additional issues related to the infection of this sort because Fopa ransomware can damage processes, disable programs, features to keep the infection running on the machine and trigger the particular background processes. This program is capable of damaging various programs and keeping them from running to ensure that Fopa virus and other malware are not affecting the machine.

Not only can it fix virus damage after the infection, but it is also capable of removing malware that has already broken into the system thanks to several engines used by the program. Besides, the application is also capable of fixing various Windows-related issues that are not caused by malware infections, for example, Blue Screen errors, freezes, registry errors, damaged DLLs, etc.

  • Download the application by clicking on the link above
  • Click on the ReimageRepair.exe
  • If User Account Control (UAC) shows up, select Yes
  • Press Install and wait till the program finishes the installation process
  • The analysis of your machine will begin immediately
  • Once complete, check the results - they will be listed in the Summary
  • You can now click on each of the issues and fix them manually
Fopa file virus: 2 2
Fopa file virus in our 2022 report.
Fopa file virus: 3 6
Fopa file virus in our 2022 report.

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

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

Fopa file virus could only hurt the files that had no second copy, and the signs (files that end in .fopa 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.

Choose a proper web browser and improve your safety with a VPN tool

Online spying has got momentum in recent years and people are getting more and more interested in how to protect their privacy online.

One of the basic means to add a layer of security - choose the most private and secure web browser. Although web browsers can't grant full privacy protection and security, some of them are much better at sandboxing, HTTPS upgrading, active content blocking, tracking blocking, phishing protection, and similar privacy-oriented features.

However, if you want true anonymity, we suggest you employ a powerful VPN - it can encrypt all the traffic that comes and goes out of your computer, preventing tracking completely.

Lost your files? Use data recovery software

While some files located on any computer are replaceable or useless, others can be extremely valuable.

Family photos, work documents, school projects - these are types of files that we don't want to lose. Unfortunately, there are many ways how unexpected data loss can occur:

  • power cuts
  • Blue Screen of Death errors
  • hardware failures
  • crypto-malware attack
  • even accidental deletion

To ensure that all the files remain intact, you should prepare regular data backups. You can choose cloud-based or physical copies you could restore from later in case of a disaster. If your backups were lost as well or you never bothered to prepare any, can be your only hope to retrieve your invaluable files.

Questions about Fopa file virus

How do I open .fopa files?

You cannot open them by renaming or with another program, because the content of files ending in .fopa has been encrypted. The only ways back are a working decryptor for the family, or clean copies from elsewhere:

  • OneDrive versions
  • File History
  • an offline backup drive
  • Previous Versions if the ransomware did not delete them

Identify the family first by uploading the ransom note and one encrypted file to ID Ransomware or No More Ransom. Avoid websites and programs that promise to open any encrypted file; they do not work and some are scams.

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.

How did Fopa file virus get on my computer?

The way Fopa file virus 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 .fopa 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.

Is there a free Fopa file virus decryptor?

We last checked on 7 October 2026, and for Fopa file virus no free decryptor is known. We check No More Ransom, which collects free tools from police and security companies, and the decryptor pages of the major antivirus vendors. A working decryptor exists only when the encryption has a flaw or the keys were leaked or seized.

Ignore sites and videos that offer a "Fopa file virus decryptor" for download or for a fee: these are usually scams or malware. Real decryptors are free and come from known security companies or law enforcement. Keep the encrypted files in case a tool appears later.

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.

Did Fopa file virus steal my files or passwords?

We do not know yet. Nothing published so far shows data theft by Fopa file virus, but the only confirmed sign is files that end in .fopa 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 Fopa file virus 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 .fopa 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 .fopa. 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 Fopa file virus?

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 Fopa file virus, 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

  1. Dieviren: Dieviren (read October 7, 2026)
  2. Nsfocusglobal: The New Trend of Ransomware: Triple Extortion (read October 7, 2026)
  3. VirusTotal: Virus detection rate (read October 7, 2026)
  4. CISA: StopRansomware (read October 7, 2026)
  5. No More Ransom (read October 7, 2026)

More removal guides

Questions and experiences: Fopa file virus

Still seeing it, or found something we did not cover? Ask here: members and our editors answer. Reading is open; writing needs a free account.

0 comments

…

5,614 members already hereReading, writing, commenting and voting. 0 verified · 339 joined this year