qTox Ransomware Exposed: How to Remove It and Recover Your Locked Files

A folder still contains the files you recognize, but their names now end in .qtox. Double-clicking one no longer opens the document you need.

Nearby is a text file called readme.txt. Before reacting to the qTox ransomware note, it helps to understand what changed and what remains recoverable.

Illustrative Windows folder containing documents renamed with the .qtox extension and a readme.txt note

Overview

What identifies this ransomware

qTox ransomware encrypts files and appends .qtox to their names. In the analyzed sample, it also creates a ransom note named readme.txt.

A file such as budget.xlsx may become budget.xlsx.qtox. The new name is a clue, but the file contents are no longer readable.

The note claims the attackers took confidential information before encryption. That is a serious assertion requiring investigation, not proof of what was actually removed from every affected system.

The malware’s name should not be confused with the qTox messaging application. The note asks victims to use that application to contact the attackers.

Encryption and data exposure are separate problems

A clean backup can solve the availability problem if it was not reached by the ransomware. It does not automatically answer whether data was copied before files were locked.

The note threatens publication through a ransomware leak site. Responders should preserve logs and assess possible exfiltration without treating the threat text as verified evidence.

Payment is not a reliable safety control. Attackers can take money without providing a working decryptor or keeping a promise to delete stolen data.

Removing the malware also does not decrypt files already affected. The two tasks, stopping the infection and recovering data, must be handled in the right order.

The first decisions to make

  • Isolate the affected computer and any reachable storage.
  • Preserve readme.txt and a small sample encrypted file for identification.
  • Do not connect a backup to a machine that may still be infected.
  • Check whether clean offline backups or cloud version history exist.
  • Assess whether the data-theft claim has supporting evidence.

For a business, involve the incident-response team early. Shared drives, cloud synchronization, and disclosure obligations can make the scope larger than one desktop.

The interface images here illustrate the extension and note without including a real attacker contact identifier.

How to Recognize qTox Without Mistaking a Filename for Proof

The .qtox extension and readme.txt are useful indicators. However, filenames alone are not a complete malware identification.

Other software can rename files, and criminals can copy a note’s wording. Use the extension, note contents, sample hashes, and endpoint telemetry together.

A document that still appears in File Explorer may not be usable. Its usual application may report an invalid format because the underlying bytes were encrypted.

Do not delete the encrypted copy because you cannot open it today. A future decryptor, forensic analysis, or discovered backup may still make it useful.

Keep at least one original affected file untouched. Work on copies when testing identification or recovery tools, so a failed experiment does not reduce your options.

The ransom note may tell you not to rename files or restore from backups. Such instructions serve the attacker’s leverage and should not govern a professional recovery plan.

At the same time, changing filenames at random will not reverse encryption. Preserve the evidence before trying any repair.

On a corporate network, an apparent single-system infection can indicate access to mapped drives or shared folders. Check whether the same extension appears elsewhere.

Illustrative redacted qTox ransomware note claiming encrypted files and data theft

How qTox Ransomware Operates

Step 1: The attacker gets code onto a Windows system

The analyzed sample establishes what qTox does after execution, not a single proven delivery route for every infection.

Ransomware can arrive through malicious attachments, untrusted software, exposed remote access, or another compromise. Treat those as investigative possibilities until logs identify your entry point.

Before changing the system, preserve suspicious emails, download records, and security alerts that might explain how the attacker gained access.

Step 2: Files become unreadable and gain .qtox

The ransomware encrypts targeted data and adds its extension. The original file type may remain visible earlier in the name, but the application cannot read encrypted contents.

Encryption can affect different file types and storage locations depending on access. A shared drive may be exposed if the infected account can write to it.

Do not assume that an unaffected folder means the attack stopped on its own. Scope requires a systematic check across connected systems.

Step 3: The note claims a second form of leverage

The readme.txt note says confidential information was taken and threatens publication if the victim refuses to communicate.

This is a double-extortion claim. It combines unavailable files with fear of exposure, even when a backup might allow technical restoration.

Investigators need outbound network, access, archive, and identity logs to evaluate that claim. The wording of the note alone cannot prove exfiltration.

Step 4: Contact is routed through qTox messenger

The note directs victims toward the qTox application and a contact ID. This gives the attackers a private channel for negotiations.

Installing the messenger does not restore files. It only opens communication with the people who caused the problem.

If legal counsel or responders decide communication is necessary, keep it controlled and documented. An individual employee should not negotiate from the affected device.

Step 5: Recovery depends on a clean source

Removing active ransomware prevents further damage but leaves existing encrypted files locked. Restoring backups onto an unclean machine can result in another loss.

Use verified offline or immutable backups when available. Check version history and reputable decryptor databases, but do not trust sites promising universal qTox decryption.

A public decryptor may not exist for this variant. That status can change, so verify it through trustworthy recovery projects rather than assuming a dated article remains current.

Variant, Scope, Backup, and Disclosure Checks

Confirm the variant before choosing a tool

Record the exact extension, note filename, and representative encrypted file. Use a trusted identification service or incident-response specialist on copies.

Do not upload sensitive files to an unknown “free decryptor” page. Such sites can collect data, charge a fee, or deliver additional malware.

Map every system the attacker could reach

Review shared folders, network drives, synchronization clients, and accounts used on the infected computer. Look for encryption timing and suspicious logins.

An organization should preserve firewall, identity, endpoint, and cloud logs before their retention window closes. Those records may identify lateral movement or data transfer.

Validate backups before restoring them

Check a backup’s creation time, integrity, and isolation. A backup connected during the attack may already contain encrypted versions.

Cloud version history can help for individual files, but restore cautiously and inspect whether synchronization has overwritten clean copies.

Assess the claimed data theft separately

List the sensitive information accessible to affected accounts. Look for unusual archives, large transfers, staging folders, or access to high-value repositories.

Bring legal, privacy, and communications teams into the decision if regulated or customer data might be involved. Do not promise that paying would prevent disclosure.

What to Do if qTox Ransomware Infected Your Computer

  1. Disconnect the affected system. Remove network access and isolate mapped drives. If this is a business computer, notify IT rather than trying to clean several machines independently.
  2. Keep evidence intact. Save readme.txt, a small encrypted file, event timestamps, and any suspicious email. Avoid reformatting or deleting files before responders review them.
  3. Protect your backups. Disconnect external storage and pause cloud synchronization where appropriate. Never connect a clean backup to a system with active ransomware.
  4. Determine the scope. Check other endpoints, shared folders, and accounts for encryption or suspicious access. Preserve logs before they expire.
  5. Remove active malicious components. On a home computer, a Malwarebytes scan and Windows Security can help identify ransomware and related payloads. Organizations should follow their incident-response plan.
  6. Recover from clean sources. After confirming the system is clean, restore verified offline backups or clean cloud versions. Check No More Ransom for an applicable free decryptor.
  7. Change credentials from a clean device. Reset accounts used on the affected machine, revoke sessions, and examine privileged access if a business network was involved.
  8. Investigate possible exposure. Treat the note’s theft claim seriously, but verify it through evidence. Seek legal advice about notification duties instead of relying on attacker statements.

Remove qTox Ransomware and Recover the Files

Carry out removal and restoration in sequence. Scanner results are not a decryptor, and a successful restoration is not proof that the attacker’s access is gone.

Removal phase 1: Start from a controlled environment

Use a trusted recovery environment or Safe Mode when appropriate. If the device is part of a company network, allow the security team to collect forensic evidence first.

Windows 11Windows 10Windows 7
Safe Mode with Networking starts Windows with only the essential drivers and services, which stops most malware from loading — making it much easier to remove. First, we’ll open the Windows Recovery Environment (winRE):

  1. Press Windows key + I to open Settings. If that doesn’t work, right-click the Start button and select Settings. Then, in the right-hand pane, click Recovery.
    Go to Windows Settings
  2. Under Advanced startup, click Restart now. Save any open work first — your PC will restart immediately.
    Recovery window in Windows 10

Your PC will restart into the Windows Recovery Environment. From there, follow these steps to reach Safe Mode:

  1. On the Choose an option screen, select Troubleshoot.
    Windows 11 - Start in Safe Mode with Network
  2. On the Troubleshoot screen, click Advanced Options.
    Windows 11 - Start in Safe Mode with Network - Step 2
  3. On the Advanced Options page, click Startup Settings.
    Windows 11 - Start in Safe Mode with Network - Step 3
  4. On the Startup Settings page, click Restart.
    Windows 11 - Start in Safe Mode with Network - Step 4
  5. After your PC restarts, you’ll see a list of startup options. Press 5 or F5 to start Safe Mode with Networking.
    Boot in Safe Mode Windows 11
  6. You’ll know you’re in Safe Mode when “Safe Mode” appears in the corners of the screen. Now continue with the next step of this guide — downloading and running Malwarebytes (explained in Step 2).
Safe Mode with Networking starts Windows with only the essential drivers and services, which stops most malware from loading — making it much easier to remove. First, we’ll open the Windows Recovery Environment (winRE):

  1. Press Windows key + I to open Settings. If that doesn’t work, click the Start button and select Settings (the gear icon).
    Go to Windows Settings
  2. In the Windows Settings window, select Update & Security, then click Recovery.
    Recovery window in Windows 10
  3. Under Advanced startup, click Restart now. Save any open work first — your PC will restart immediately.
    Open Advance Startup

Your PC will restart into the Windows Recovery Environment. From there, follow these steps to reach Safe Mode:

  1. On the Choose an option screen, select Troubleshoot.
    Windows 10 - Start in Safe Mode with Network
  2. On the Troubleshoot screen, click Advanced Options.
    Windows 10 - Start in Safe Mode with Network - Step 2
  3. On the Advanced Options page, click Startup Settings. (On Windows 8, this option is labeled Windows Startup Settings.)
    Windows 10 - Start in Safe Mode with Network - Step 3
  4. On the Startup Settings page, click Restart.
    Windows 10 - Start in Safe Mode with Network - Step 4
  5. After your PC restarts, you’ll see a list of startup options. Press 5 or F5 to start Safe Mode with Networking.
    Boot in Safe Mode Windows 10
  6. You’ll know you’re in Safe Mode when “Safe Mode” appears in the corners of the screen. Now continue with the next step of this guide — downloading and running Malwarebytes (explained in Step 2).
Safe Mode with Networking starts Windows with only the essential drivers and services, which stops most malware from loading — making it much easier to remove. Here’s how to get there on Windows 7:

  1. Remove any CDs, DVDs, or USB drives from your computer, then restart it.
  2. As soon as the computer starts (when the hardware information appears on screen), press the F8 key repeatedly until the Advanced Boot Options menu appears. If Windows starts normally instead, you pressed F8 too late — restart and try again.
    F8 Safe Mode
  3. On the Advanced Boot Options screen, use the arrow keys to highlight Safe Mode with Networking, then press Enter.
    Safe Mode with Networking screen
  4. Once you’re in Safe Mode with Networking, continue with the next step of this guide — downloading and running Malwarebytes (explained in Step 2).
    Can’t get into Safe Mode with Networking? No problem — you can run the Malwarebytes scan in normal mode instead and continue the guide from there.

Removal phase 2: Scan for the ransomware and related payloads

Update Malwarebytes from an official source and run a full scan. Review detections rather than assuming the .qtox extension identifies every malicious component.

Malwarebytes is one of the most popular and trusted anti-malware tools for Windows — and it’s completely free for removing infections. It catches threats that many antivirus programs miss, including adware, browser hijackers, and trojans. Follow the steps below to scan and clean your PC in just a few minutes.

  1. Download Malwarebytes

    Click the button below to download the latest version of Malwarebytes for Windows from the official source. The free version is all you need — it will scan your computer and remove adware, browser hijackers, and other malicious software at no cost.

    DOWNLOAD MALWAREBYTES FOR WINDOWS (FREE)

    (The link opens in a new page where your download will start)
  2. Install Malwarebytes

    When the download finishes, open your Downloads folder and double-click the MBSetup file. If Windows shows a User Account Control pop-up, click “Yes” to allow the installation.

    MBAM1
  3. Follow the On-Screen Prompts to Install Malwarebytes

    The setup wizard will walk you through a few quick screens:

    • Choose where you’re installing the program — “Personal Computer” or “Work Computer” — then click Next.

      MBAM3 1
    • Malwarebytes will now install on your device. This usually takes under a minute.

      MBAM4
    • When installation is complete, the “Welcome to Malwarebytes” screen will open automatically.

      MBAM6 1
    • On the final screen, click Open Malwarebytes to launch the program.

      MBAM5 1
  4. Enable “Scan for Rootkits”

    Before scanning, turn on rootkit detection so Malwarebytes can find even the most hidden threats. Click the Settings gear icon on the left side of the screen.

    MBAM8

    In the settings menu, find “Scan for rootkits” and click the toggle so it turns blue.

    MBAM9

    Done? Click “Dashboard” in the left pane to return to the main screen.

  5. Start the Scan

    Click the blue Scan button. Malwarebytes will automatically update its virus database and start checking your computer for malware.

    MBAM10
  6. Wait for the Scan to Finish

    The scan checks your entire system for browser hijackers and other malicious programs, so it can take several minutes. Feel free to do something else — just check back occasionally to see the progress.

    MBAM11
  7. Quarantine the Detected Threats

    When the scan is done, you’ll see a list of everything Malwarebytes found — malware, adware, and potentially unwanted programs. Click the “Quarantine” button to remove all of them at once.

    MBAM12

    Malwarebytes will now remove the malicious files and registry entries and move them safely into quarantine.

    MBAM13

  8. Restart Your Computer

    Some threats can only be fully removed after a reboot. If Malwarebytes asks you to restart, click Yes. Once you’re logged back in, your PC is clean and you can continue with the next steps in this guide.

    MBAM14

Removal phase 3: Run an independent second-opinion scan

Use a separate reputable scanner to look for remnants and downloaders. Business machines may need professional review before tools quarantine custom software.

HitmanPro is a second-opinion scanner — it’s designed to catch what your main antivirus might have missed. Instead of relying on a single detection engine, it checks the behavior of files in the locations where malware usually hides. Anything suspicious gets sent to the cloud, where it’s analyzed by two of the best antivirus engines available: Bitdefender and Kaspersky.

Good news: scanning is completely free, with no limits. You only need a license when it’s time to remove what was found — and even then, you can activate a free one-time 30-day trial to clean your PC at no cost. (A full license is $24.95 per year for 1 PC.)

  1. Download HitmanPro

    Click the button below to download HitmanPro. Remember — the scan is free, so you have nothing to lose by checking your PC.

    DOWNLOAD HITMANPRO (FREE SCAN)
    (The link opens in a new page where your download will start)
  2. Install HitmanPro

    When the download finishes, open your Downloads folder and double-click the file: “hitmanpro.exe” on 32-bit Windows, or “hitmanpro_x64.exe” on 64-bit Windows.

    Double-click on the HitmanPro file

    If a User Account Control pop-up asks whether HitmanPro can make changes to your device, click “Yes” to continue.

    Windows asking for permissions to run the HitmanPro setup

  3. Follow the On-Screen Prompts

    On the HitmanPro start screen, click “Next” to begin the system scan. No lengthy setup required — it goes straight to work.

    Click Next to install HitmanPro on your PC

    HitmanPro final installer screen

  4. Wait for the Scan to Finish

    HitmanPro will now check your computer for malicious programs. This usually takes just a few minutes thanks to its cloud-based scanning.
    HitmanPro scans your computer for any infections, adware, or potentially unwanted programs that may be present

  5. Review the Results and Click “Next”

    When the scan is done, HitmanPro will show you everything it found. Click “Next” to remove the detected threats.

    HitmanPro scan summary. Click Next to remove malware

  6. Click “Activate Free License”

    To remove the malicious files, click the “Activate free license” button. This starts your free 30-day trial — no payment details needed — and unlocks the full cleanup.
    Click on the Activate free license button

    When the removal is complete, HitmanPro will show a summary of everything it cleaned. Click Next, then click Reboot if prompted. If there’s no reboot prompt, just click Close — your PC is clean.

Removal phase 4: Confirm the endpoint is clean

Check startup entries, security logs, and other endpoints. A second scan helps, but network-wide compromise requires more than a single clean result.

ESET Online Scanner is a free second-opinion scanner that performs a deep, full-system check for viruses, trojans, rootkits, and other malware. We use it as the final step because it’s thorough — if anything slipped past the previous scans, ESET will find it. A clean result here means your computer is malware-free.

  1. Download ESET Online Scanner

    Click the button below to download ESET Online Scanner.

    DOWNLOAD ESET ONLINE SCANNER (FREE)

    (The link opens in a new page where your download will start)
  2. Run the Installer

    When the download finishes, open your Downloads folder and double-click “esetonlinescanner.exe“.
    Image - Double-click on the ESET Online Scanner setup file

  3. Install ESET Online Scanner

    On the start screen, select your language from the drop-down menu and click Get started.

    Image - Click Get Started to install ESET Online Scanner

    On the Terms of use screen, click Accept.
    Image - Accept Terms to Install ESET Online Scanner

    Choose your preferences for the Customer Experience Improvement Program and the Detection feedback system (either choice is fine), then click Continue.
    Image - Follow the on-screen prompts

  4. Start a Full Scan

    Click Full Scan — this checks your entire computer, not just the common hiding spots.

    Start a Full Scan with ESET Online Scanner

    Select Enable for Detection of Potentially Unwanted Applications — this lets ESET catch adware and bundled junk programs, not just viruses. Then click Start scan.

    Image - Enable PUA Detection and Start Scan

  5. Wait for the Scan to Finish

    ESET will now check every file on your computer. Because it’s a full scan, this can take a while — often an hour or more, depending on how much data you have. Leave it running in the background and check on it from time to time.

    Image- Wait for the ESET Online Scanner scan to finish

  6. Review the Results

    When the scan completes, the Found and resolved detections screen appears. Any threats found were automatically cleaned and quarantined — there’s nothing extra you need to do. Click View detailed results if you want to see exactly what was removed.
    Image - ESET Online Scanner malware removal

    If ESET found nothing — congratulations, your computer has passed the final check and is malware-free.

Recovery phase 5: Restore only verified data

Test one small restore first. Use an offline backup, immutable snapshot, or clean version history, and keep original encrypted files until recovery is complete.

Unfortunately, in most cases, it’s not possible to recover the files encrypted by this ransomware virus because the private key which is needed to unlock the encrypted files is only available through the attackers. However, below we’ve listed three options you can use to try and recover your files.

Make sure you remove the malware from your computer first, otherwise, it will repeatedly lock your system or encrypt files. If you suspect that your computer is still infected with malware, you can run a free scan with Emsisoft Emergency Kit.

Option 1: Search a decryption tool for this ransomware

The cybersecurity community is constantly working to create ransomware decryption tools, so you can try to search these sites for updates:

Option 2: Use EaseUS Data Recovery Wizard Free to recover the encrypted files

EaseUS Data Recovery Wizard Free can restore files and repair corrupted files with simple clicks. Its powerful scanning algorithms can identify and retrieve huge file type library, including all of the popular video files, audio files, photos, and document formats.
While the free version only allows you to recover 2 GB of data, this can be helpful to see if the recovery is possible and restore back the most important files from your computer.

  1. Download EaseUS Data Recovery Wizard Free.

    You can download EaseUS Data Recovery Wizard Free by clicking the link below.

    EASEUS DATA RECOVERY WIZARD FREE DOWNLOAD LINK

    (The above link will open a new page from where you can download EaseUS Data Recovery Wizard)
  2. Double-click on the EaseUS Data Recovery Wizard Free setup file.

    When EaseUS Data Recovery Wizard Free has finished downloading, double-click on the setup file to install EaseUS Data Recovery Wizard on your computer. In most cases, downloaded files are saved to the Downloads folder.

    Image: EaseUS Data Recovery Wizard Free Installer

    You may be presented with a User Account Control pop-up asking if you want to allow EaseUS to make changes to your device. If this happens, you should click “Yes” to continue with the EaseUS Data Recovery Wizard Free installation.

  3. Follow the on-screen prompts to install EaseUS Data Recovery Wizard.

    When the EaseUS Data Recovery Wizard installation begins, click on the “Install Now” as seen in the image below.
    EaseUS Data Recovery Wizard Free Install Now

    When your EaseUS Data Recovery Wizard installation completes, click the “Start Now” button to start the program.
    Image: Click Start Now

  4. Select a location to start recovering the encrypted files.

    Choose the drive or folder where you are the encrypted files that you want to recover and click “Scan“.
    Select a location to start recovering the encrypted files

  5. Wait for the EaseUS Data Recovery Wizard scan to complete.

    EaseUS Data Recovery Wizard will now scan your computer files that can be restored. This process can take a few minutes, so we suggest you do something else and periodically check on the status of the scan to see when it is finished.
    Image: Wait for the EaseUS Data Recovery Wizard scan to complete.

  6. Find the files you want to recover.

    When the EaseUS Data Recovery Wizard scan is finished scanning it will show a screen that displays the files that can be recovered. This tool can recover a lot of data, use the “Filter” button to quickly filter specific file types and find the files that you want to recover.
    Filter the Files by Type

    Click the “Preview” button or double-click on a file for a full preview.
    Image: Click Preview to view the file

  7. Select your files and click “Recover”.

    Finally, select the the files you want to recover and click “Recover“.
    Select your files and click Recover
    Choose a safe location to save all the files.
    Select a safe location
    The free version only allow you to recover 2 GB of data, however, this will allow you to recover the most important files and see if EaseUS Data Recovery Wizard can correctly recover them.
    Image: View Recovered Files

Option 3: Try to restore your files with ShadowExplorer

This ransomware will attempt to delete all shadow copies when you first start any executable on your computer after becoming infected. Thankfully, the infection is not always able to remove the shadow copies, so you should continue to try restoring your files using this method.

  1. Download ShadowExplorer.

    You can download ShadowExplorer from the below link.

    SHADOW EXPLORER DOWNLOAD LINK
    (This link will open a new web page from where you can download “ShadowExplorer”)
  2. Install ShadowExplorer.

    Double-click on the ShadowExplorer-x.x-setup file to start the installation process, then follow the on-screen promts to install this program.
    Install Shadow Defender

  3. Select snapshot date.

    Open ShadowExplorer and then from the top bar select the drive where the files that you want to save are located, then select from the snapshot available one previous to this infection.

    Select drive and date to recover the files encrypted by this ransomware

  4. Export the files that you want to recover.

    Once you have found a copy of the original file or folder, right-click on it and the select “Export”. A window will prompt you where you want to save the file or folder.
    Find copy then click on Expor to recover the files encrypted by this ransomware

How to Reduce the Chance of a Repeat Attack

Keep at least one backup disconnected from ordinary user accounts. Test restoration before an emergency, not when the only remaining copy has failed.

Apply operating system and application updates promptly. Limit administrator rights and remove remote-access services that nobody uses.

Protect email and remote accounts with multifactor authentication. Review sign-in alerts, especially for accounts able to reach shared drives.

Train staff to report suspicious attachments without embarrassment. A quick report can protect the rest of the network before encryption spreads.

When There Is No Usable Backup

A missing backup is a painful discovery, but it does not make an attacker-controlled decryptor the only possible next step.

First preserve the encrypted files and note. A future public decryptor could become available if researchers find a flaw or keys are recovered.

Check whether the same documents exist in email attachments, shared drives, old laptops, collaboration platforms, or cloud version history.

Do not connect those sources to the infected machine. Copy them only after a clean recovery environment has been prepared.

Some applications keep their own export files or automatic versions. Accounting platforms, photo libraries, and office suites may have recovery paths outside Windows File History.

Professional data recovery cannot usually break sound encryption. A service promising guaranteed qTox decryption without explaining its method deserves skepticism.

Beware of a company that simply forwards your payment to the criminals and adds a fee. That can leave you with the same risk at greater expense.

Keep the original storage image when possible. Repeated writes and improvised repair utilities can destroy artifacts that might help a later investigation.

Why the Data-Theft Threat Needs Its Own Investigation

The note’s publication threat is designed to make even a well-backed-up victim feel trapped. Backups solve access, not confidentiality.

Review which accounts had permission to read sensitive folders. A shared drive may contain far more than the files visibly encrypted on one computer.

Check for unusual compression tools, archives, transfers, and cloud access near the attack time. A lack of such evidence may narrow the concern, but log gaps matter.

Do not base a notification decision only on the attacker’s claim or denial. Ask an incident-response professional and legal adviser to evaluate the available evidence.

For a household, exposure can include tax returns, identity documents, and saved passwords. For an organization, customer and employee records may be involved.

Change exposed credentials and watch for targeted follow-up messages. The attackers may use information they saw to make later phishing more credible.

If the note names a leak site, avoid visiting unfamiliar criminal infrastructure from the infected machine. Let responders collect any necessary evidence safely.

The goal is a defensible picture of what happened, not an instant yes-or-no answer produced by the ransom note.

Frequently Asked Questions

Can I open a file by removing .qtox from its name?

No. Renaming does not undo encryption. Keep the original file unchanged and investigate backups or trusted decryptors.

Does qTox ransomware mean the qTox messaging app infected me?

No. The name also appears in the attacker’s contact instructions. A messaging app is not the same thing as the ransomware sample.

Will antivirus restore my locked documents?

Security software can remove active malware, but it cannot ordinarily reverse encryption. File recovery is a separate step.

Is the note’s data-theft claim definitely true?

Not solely because the note says so. Investigate access and transfer evidence while treating the possibility as a serious incident.

Should I pay for a decryptor?

Payment provides no guarantee of a working key or deleted data. Consult responders and legal advisers before any decision, especially for a business.

Where can I check for a free decryptor?

Use a reputable project such as No More Ransom and confirm the variant first. Avoid search ads promising an instant universal fix.

The Bottom Line

qTox ransomware locks files with a .qtox extension and leaves readme.txt with a claimed data-theft threat. The note’s claims require investigation, not automatic acceptance.

Isolate the system, preserve evidence, remove the infection, and restore from a clean source. Handle any possible data exposure as a separate question.

If your current antivirus allowed this malicious program on your computer, you may want to consider purchasing the full-featured version of Malwarebytes Anti-Malware to protect against these types of threats in the future.
If you are still having problems with your computer after completing these instructions, then please follow one of the steps:

10 Rules to Avoid Online Scams

Here are 10 practical safety rules to help you avoid malware, online shopping scams, crypto scams, and other online fraud. Each tip includes a quick “if you already got hit” action.

  1. Stop and verify before you click, log in, download, or pay.

    warning sign

    Most scams win by creating urgency. Verify using a trusted method: type the website address yourself, use the official app, or call a known number (not the one in the message).

    If you already clicked: close the page, do not enter passwords, and run a malware scan.

  2. Keep your operating system, browser, and apps updated.

    updates guide

    Updates patch security holes used by malware and malicious ads. Turn on automatic updates where possible.

    If you saw a scary “update now” pop-up: close it and update only through your device settings or the official app store.

  3. Use layered protection: antivirus plus an ad blocker.

    shield guide

    Antivirus helps block malware. An ad blocker reduces scam redirects, phishing pages, and malvertising.

    If your browser is acting weird: remove unknown extensions, reset the browser, then run a full scan.

  4. Install apps, software, and extensions only from official sources.

    install guide

    Avoid cracked software, “keygens,” and random downloads. During installs, choose Custom/Advanced and decline bundled offers you do not recognize.

    If you already installed something suspicious: uninstall it, restart, and scan again.

  5. Treat links and attachments as untrusted by default.

    cursor sign

    Phishing often impersonates delivery services, banks, and popular brands. If it is unexpected, do not open attachments or log in through the message.

    If you entered credentials: change the password immediately and enable 2FA.

  6. Shop safely: research the store, then pay with protection.

    trojan horse

    Be cautious with brand-new stores, “closing sale” stories, and prices that make no sense. Prefer credit cards or PayPal for dispute options. Avoid wire transfers, gift cards, and crypto payments.

    If you already paid: contact your card issuer or PayPal quickly to dispute the transaction.

  7. Crypto rule: never pay a “fee” to withdraw or recover money.

    lock sign

    Common patterns include fake profits, then “tax,” “gas,” or “verification” fees. Another is a “recovery agent” who demands upfront crypto.

    If you already sent crypto: stop paying, save evidence (wallet addresses, TXIDs, chats), and report the scam to the platform used.

  8. Secure your accounts with unique passwords and 2FA (start with email).

    lock sign

    Use a password manager and unique passwords for every account. Enable 2FA using an authenticator app when possible.

    If you suspect an account takeover: change passwords, sign out of all devices, and review recent logins and recovery settings.

  9. Back up important files and keep one backup offline.

    backup sign

    Backups protect you from ransomware and device failure. Keep at least one backup on an external drive that is not always connected.

    If you suspect infection: do not connect backup drives until the system is clean.

  10. If you think you are a victim: stop losses, document evidence, and escalate fast.

    warning sign

    Move quickly. Speed matters for disputes, account recovery, and limiting damage.

    • Stop payments and contact: do not send more money or respond to the scammer.
    • Call your bank or card issuer: block transactions, replace the card if needed, and start a dispute or chargeback.
    • Secure your email first: change the email password, enable 2FA, and remove unfamiliar recovery options.
    • Secure other accounts: change passwords, enable 2FA, and log out of all sessions.
    • Scan your device: remove suspicious apps or extensions, then run a full malware scan.
    • Save evidence: screenshots, emails, order pages, tracking pages, wallet addresses, TXIDs, and chat logs.
    • Report it: to the payment provider, marketplace, social platform, exchange, or wallet service involved.

These rules are intentionally simple. Most online losses happen when decisions are rushed. Slow down, verify independently, and use payment methods and account controls that give you recourse.

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