Hhqa file virus: what it is and how to remove it
Hhqa ransomware is a devastating computer virus that encrypts all non-system files on an infected device and demands a ransom to be paid in Bitcoins. The assailants behind the cyber infection are demanding to forward them $980 to receive the decryption software.
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.
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Hhqa file virus: summary
| Distribution | Downloads from file-sharing platforms |
|---|---|
| name | Hhqa file virus |
| Type | Ransomware, file-locking parasite |
| Family | Djvu/STOP |
| Infection symptoms | Documents, pictures, archives, and other personal files are renamed and locked; a ransom note appears on the desktop and in affected folders; can't open security-related websites and certain installed software |
| Appended file extension | Non-system data is renamed by appending the .hhqa extension to original filenames |
| 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 15 more facts
| Ransom note | _readme.txt |
|---|---|
| Data recovery | Possible decryption software is described in the article |
| Detection names | No Microsoft detection name is known |
| Contact | manager@mailtemp.ch, helpmanager@airmail.cc |
| Encrypted file extension | .hhqa |
| Decryptor | No free decryptor is known for this variant; check No More Ransom (nomoreransom.org) for updates |
| Damage | Not recorded in the old report |
| Name | Hhqa file virus |
| 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 | .hhqa |
| Attacker contacts | manager@mailtemp.ch |
| Free decryptor | No free decryptor is known (checked 6 October 2026) |
| First seen | 22 July 2021 |
| Facts checked | 6 October 2026 |
- File extension:
.hhqa - Note file:
_readme.txt - Contact:
manager@mailtemp.ch
From our report of Jul 2021 · not reviewed since
More from our earlier report on Hhqa file virus
- You have to repair virus-caused damages, or the PC won't run smoothly after the ransomware removal.
- We highly recommend using the system diagnostics software for this task
How Hhqa file virus behaves
From our report of Jul 2021 · not reviewed since
Hhqa ransomware – a file-locking parasite that asks for $980 as a ransom
Hhqa ransomware is a devastating computer virus that encrypts all non-system files on an infected device and demands a ransom to be paid in Bitcoins.
The assailants behind the cyber infection are demanding to forward them $980 to receive the decryption software.
Although this amount might not seem much to some of our readers to get their files, you should never reach out to the criminals or forward them any money, as that would only encourage them to attack more innocent people. And there's no point in paying, as you can try and recover the locked data for free.
Before doing that, you will need to remove Hhqa ransomware, and we'll show you how to do that with our illustrated guides. We've been helping people out to resolve computer infections and various issues for over 20 years now, so don't worry, you're in good hands.
It might not say much to you, but Hhqa file virus belongs to the Djvu ransomware family. It's the most prevalent lineage of such types of malware as in the first quarter of 2021, it was responsible for more than half of all ransomware attacks around the world.
While distributors from other criminal gangs might use RDP attacks or phishing emails to distribute their vile creations, Djvu/STOP family relies on file-sharing platforms. New ransomware strains are created at least a few times per week and uploaded to the most popular torrent sites disguised as software cracks (especially for the latest, most anticipated games).
Therefore, if your files are renamed by appointing the .hhqa extension, there's a pretty good chance that you or someone else who might have been using your device has recently downloaded something from a file-sharing platform. Please be advised that the infection has already done its deed. Now all that matters is how you respond to it.
Within the _readme.txt text file, you'll see that the criminals are bending over backward to persuade you into meeting their demands. They provide a link where the supposed decryption software is seen in action and even offer a 50% discount for victims that establish contact via email (manager@mailtemp.ch, helpmanager@airmail.cc) within three days of the attack.
All these persuasion techniques are meant to push you into making rash decisions. Please don't succumb to the demands of the criminals and forward them any money. There's no guarantee that you'll ever receive the promised decryption software, so you'd be losing your data and your money.
Furthermore, as we said earlier, Hhqa virus belongs to the most common ransomware strain in the world, and thus, some companies are striving to help people decrypt their software without losing a dime and enriching the criminals.
Criminals send this message to every victim:


The Hhqa file virus ransom note
ATTENTION!
Don't worry, you can return all your files!
All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key.
The only method of recovering files is to purchase decrypt tool and unique key for you.
This software will decrypt all your encrypted files.
What guarantees you have?
You can send one of your encrypted file from 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 and look video overview decrypt tool:
hxxps://we.tl/t-fhnNOAYC8Z
Price of private key and decrypt software is $980.
Discount 50% available if you contact us first 72 hours, that's price for you is $490.
Please note that you'll never restore your data without payment.
Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours.
To get this software you need write on our e-mail:
manager@mailtemp.ch
Reserve e-mail address to contact us:
helpmanager@airmail.cc
Your personal ID:
How to remove Hhqa 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 Hhqa 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.
Step 1: Disconnect the PC and unplug backup drives
Unplug the network cable or turn off Wi-Fi, and disconnect USB drives, external disks and network shares, so Hhqa file virus cannot reach more files. Pause OneDrive, Google Drive or Dropbox sync, because synced folders upload the encrypted copies over the good ones.
Leave the PC on but offline while you read the next steps, since a restart can let the ransomware run again. This applies to Windows 11 and Windows 10 alike.

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
Your files now end in
.hhqaand the instructions are in_readme.txt. Save both to a USB stick, a copy of the note and two small encrypted files, before anything else.On another device, check them with ID Ransomware or Crypto Sheriff: the family name decides which decryptor, if any, can help. Keep the note's ID and contact line for your report.

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
Our last check found that for Hhqa file virus, no free decryptor is known (checked 6 October 2026). Look again yourself in the No More Ransom list and the free decryptor pages of Emsisoft, Avast and Kaspersky, which add new families every year.
A decryptor needs the ransomware gone first, or it encrypts the files again. Keep at least one copy of the encrypted files on an external drive, even if no tool works yet.
Full procedure with screenshots: Ransomware: first steps, finding a decryptor and recovering files
Step 4: Remove the ransomware before you restore or decrypt
Removing Hhqa file virus does not bring the files back, but it has to come first. Start with Defender's Full scan, then the offline scan from the same Scan options page, which checks the disk before Windows loads.
If the scan cannot start, use Safe Mode with Networking. Delete the ransom notes only after you have saved a copy, because removal tools sometimes leave them behind on Windows 11 and 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
Windows keeps shadow copies for restore points and backups, and some ransomware fails to delete them.
vssadmin list shadowsin an administrator Command Prompt tells you at once whether any exist.If they do, right-click the folder that held your files, open Properties > Previous Versions, select a version from before the attack, and click Open to check it before you Restore or copy the files out. Windows 11 and Windows 10 both have the tab.

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
A backup made before the attack is the surest way back. Connect it only once the PC is clean, then restore from File History, Windows Backup, OneDrive's Restore your OneDrive or your own external copies.
Without a backup, try file recovery: the originals that Hhqa file virus deleted may still be on the disk until something overwrites them. Install nothing new on the drive you want to recover from on the Windows 11 or Windows 10 PC.
Full procedure with screenshots: Recover deleted files (Recycle Bin, backups, OneDrive) On uGetFix
From our report of Jul 2021 · not reviewed since
Remove Hhqa ransomware and repair the affected system sectors
This chapter will tell you all you need to know about the file virus removal and repairing the damaged system files and settings, as this virus doesn't encrypt system files but does extensive modifications to them. That might lead to crashes, severe lag, or complete system failure.
Before we proceed with Hhqa ransomware removal, you have to copy essential or all encrypted files onto an external, offline storage device. The encrypted data doesn't hold any malicious scripts, so it's safe to extract it into a USB flash drive, SSD, or similar devices.
Once that's done, you have to reboot your infected PC in Safe Mode with Networking and download a reliable anti-malware tool that's capable of removing any cyber infections. If you need help with accessing the said Windows OS mode, here's how it's done:
You have to access this mode as Hhqa file virus might have altered the host file, which wouldn't let you visit security-related sites and download trustworthy anti-malware software like the . Once you access the Safe Mode with Networking, you can download any security software.
After downloading either one of our recommended tools or one of your choice, install it and update its virus definition database with the latest malware signatures. This ensures that the security tool is able to locate, isolate, and remove the most recent computer infections.
Once that's done, perform a full system scan. The security software should automatically identify the infection with all of its components and suggest eliminating it. Please do that to remove the Hhqa virus once and for all. Updated anti-malware software isn't enough to keep you and your computer safe.
It would be best if you refrained from visiting and using the services of high-risk websites, as they're a hotbed for various kinds of malware. In addition, make a habit of updating such software and performing full system scans with it at least twice per week.
When you remove Hhqa file virus, the next step is to take care of your PC's health. You won't be able to accomplish this task manually as well, as there's impossible to know which system settings and files were damaged and to what extent. That's why we highly recommend entrusting this task to the system diagnostics tool.
After scanning your Windows computer with this reliable PC optimizer, its patented technology will reveal all affected sectors and suggest repairing them with a push of a button. Our cybersecurity colleagues from France also recommend using this software, so here's what you need to do:
Using the system optimizer at least once a week is important to keep all system files and settings in check. It's even more essential to use it after Hhqa ransomware removal to undo the modifications it might have done. Otherwise, Blue Screens of Death, severe lag, and other system failures will become common.
- Right-click on the Start button and select Settings.
- On the left side of the window, pick Recovery.
- 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.
- 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


From our report of Jul 2021 · not reviewed since
Detailed and illustrated guidelines to recover .hhqa files
Once the computer is virus-free and you've repaired its system sectors, it's time to recover your data.
If you had backups stored prior to the incident, now you can safely recover data from them, as there's no chance that the infection would renew itself and encrypt your files again.
If you haven't kept data backups, the road will be a bit bumpy, but you may eventually regain access to your files. The first and foremost tool that we'll show how to use is Emsisoft's free decryption software that's made specifically for the Djvu ransomware family.
However, that doesn't mean that it will recover .hhqa files immediately or at all. But it's your best shot at retrieving your precious files for free. The decryption tool is pretty easy to use, but we still provide instructions to make the whole process go without any hiccups:
After pressing it, there are three viable outcomes:
Luckily, there's one more method that could help you with data recovery. However, since the article's culprit is a brand new infection, we can't guarantee 100% that the recommended software will help. But we've received positive feedback from past ransomware victims, so if the previous free decryptor could help you, follow these step-by-step instructions to recover your data:
We hope that this journey through Hhqa file virus removal and data recovery was successful. If you have any questions about any of the steps, please feel free to contact us. Please remember that it's very important to keep backups in this day and age and use professional anti-malware software.
and are excellent tools that prevent users from visiting high-risk websites, block them from installing potentially unwanted programs, and keep their computers safe from various cyber infections that are getting more aggressive and devastating.
- After pressing the 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.
- "Decrypted!" is shown under files that were decrypted successfully - you can use them again.
- "Error: Unable to decrypt file with ID:" means that the keys for this version of the virus have not yet been retrieved. Therefore, you should wait a couple of days or weeks until the company receives the samples and decrypts them.
- "This ID appears to be an online ID, decryption is impossible" - if this prompt appears; unfortunately, Emsisoft's decryptor won't be able to help your recover .hhqa files.
- Download .
- Double-click the installer to launch it.
- Follow on-screen instructions to install the software.
- As soon as you press Finish, you can use the app.
- Select Everything or pick individual folders where you want the files to be recovered from.
- Press Next.
- At the bottom, enable Deep scan and pick which Disks you want to be scanned.
- Press Scan and wait till it is complete.
- You can now pick which folders/files to recover - don't forget you also have the option to search by the file name!
- Press Recover to retrieve your files.


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
Hhqa file virus could only hurt the files that had no second copy, and the signs (files that end in .hhqa 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 Hhqa file virus
Should I pay the ransom in _readme.txt?
Not before you have tried everything else. Identify the family from _readme.txt and one encrypted file, check No More Ransom for a free decryptor, and look for clean copies in OneDrive, backups and Previous Versions.
Paying funds further attacks, may be illegal if the group is sanctioned, and is no promise of a working key: many victims get partial or broken decryption. If you consider paying for business-critical data, involve the police and a professional incident responder first, and never pay through intermediaries who promise their own decryption.
How do I open .hhqa files?
You cannot open them by renaming or by choosing another program. The .hhqa ending shows that Hhqa file virus 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 Hhqa file virus. Store the encrypted files on an external disk until then.
Are ransomware recovery services legitimate?
Some are, but read the offer carefully. Genuine data-recovery firms recover deleted originals from disks or rebuild damaged files, and they say so. Others promise to "decrypt any ransomware" for a fixed price, which is impossible without the key; they quietly pay the attackers and keep a margin, sometimes without telling the victim.
Be especially careful with services that contact you after you post about the attack online. Ask for references, a written method and a no-result-no-fee clause, and check the free tools on No More Ransom first.
How did Hhqa file virus get on my computer?
The way Hhqa 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 .hhqa 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 Hhqa file virus decryptor?
We last checked on 6 October 2026, and for Hhqa 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 "Hhqa 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.
Did Hhqa file virus steal my files or passwords?
We do not know yet. Nothing published so far shows data theft by Hhqa file virus, but the only confirmed sign is files that end in .hhqa 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 Hhqa 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.
Can I just remove .hhqa from the file names?
You can try it on a copy, but for real ransomware it will not help. The .hhqa extension is only a label; the file content has been scrambled with a key the attackers hold.
If a renamed copy opens normally, the malware only renamed files, which happens with some fake ransomware, and you can rename the rest back. If it does not open, leave the files as they are. Renaming encrypted files can confuse a decryptor later, so always work on copies.
Can I delete _readme.txt?
Yes, the note itself is harmless text and deleting it does not affect your files. Keep at least one copy first, outside the infected PC. _readme.txt contains your personal ID and the attackers' contact details, which identification services use to tell which family encrypted your files, and which a decryptor may need later.
Police reports also ask for it. Once you have saved a copy, you can remove the notes from every folder after the ransomware program has been removed and your files are restored or backed up.
Will Fortect remove Hhqa 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 Hhqa 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
- Emsisoft: Ransomware statistics for 2021: Q1 report (read October 6, 2026)
- VirusTotal: Virus detection (read October 6, 2026)
- Csoonline: 9 types of malware and how to recognize them (read October 6, 2026)
- Lesvirus: Lesvirus (read October 6, 2026)
- CISA: StopRansomware (read October 6, 2026)