XPan ransomware virus: what it is and how to remove it
Xpan virus operates as a file-encrypting virus which is affiliated to Team XRat or Xorist ransomware family . Its key characteristics include appending .one file extension and providing one@proxy.tg email address.
Facts checked October 6, 2026. Removal steps tested on Windows 11 (26H2) and checked against Microsoft's and the browser makers' current documentation. Sections marked as our earlier report are the original text: they describe the threat as it was then and have not been reviewed since. The 2026 status, the removal steps and the questions are current.
Automatic
Get a free scan and check if your PC is infected.
Fortect finds malware, unwanted programs and the Windows damage they leave behind, and repairs it in one pass.
A free scan checks for the encryptor still on the PC; it does not decrypt .one files.
Do it yourself · free Remove XPan ransomware virus yourself 6 steps, about 18 minutes, no software needed.
Start the steps
XPan ransomware virus: summary
| Detection names | No Microsoft detection name is known |
|---|---|
| Ransom note | Not recorded in our earlier report |
| Contact | one@proxy.tg |
| Encrypted file extension | .one |
| Decryptor | No free decryptor is known for this variant; check No More Ransom (nomoreransom.org) for updates |
| Distribution | Not recorded in the old report |
| 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 9 more facts
| Damage | Not recorded in the old report |
|---|---|
| Name | XPan ransomware virus |
| Type | File-encrypting ransomware |
| Symptoms | Files renamed with a new extension |
| Evidence | 6 write-ups by security sites; details still limited |
| Encrypted files | .one |
| Free decryptor | No free decryptor is known (checked 6 October 2026) |
| First seen | 25 April 2017 |
| Facts checked | 6 October 2026 |
Traces of XPan ransomware virus you can check
- File extension:
.one
How XPan ransomware virus behaves
From our report of Apr 2017 · not reviewed since
XPan ransomware strikes again with new encryption features
Xpan virus operates as a file-encrypting virus which is affiliated to Team XRat or Xorist ransomware family .
Its key characteristics include appending .one file extension and providing one@proxy.tg email address. Much attention to this virus group was attributed last year . The current version is not new. It has been detected in September 2016.
One of its distinctive features is that it was devised by Brazilian hackers. It uses AES-256 encryption algorithm. However, due to bugs in the programming code, it is decryptable. Its distribution technique sparks interest as well.
Hardly it is spread via spam emails and exploit kits, in fact, it is spread manually. Once the malware is placed on a system, it would encrypt a wide range of personal documents and then mark them with .____xratteamLucked and .one file extensions.
It is known that the malware would also examine the default language of the infected device in HKLM\SYSTEM\CONTROLSET001\CONTROL\NLS\LOCALE . Thus, it suggests that it targets only certain countries. More information about its distribution and Xpan removal sections is provided in further questions.
Taking into account that the ransomware is loaded manually into the device , it is able to locate and identify other geographical details which allow pinpointing the exact location of a victim. The malware operates in the form of a trojan -- Trojan-Ransom.Win32.Xpan. Specifically, the AES-256 public key is used for encrypting data.
This encryption strategy is more elaborate in contrast to previously employed TEA (Tiny Encryption Algorithm), thus, it falls into the category of troublesome threats. Nonetheless, IT specialists have found a way to decrypt the files without the necessity for victims to pay the money.
Interestingly, that the programming code contains hints and messages for IT experts. Among the lines, there are just notes as "eusoudejesus" meaning "I am from Jesus". In addition, it also refers to celebrities and the electronic game which was popular in the 1990s which might suggest the identity of cyber crooks.
During the encryption, XPan malware also copies its files into the registry editor and initiates changes via Command Prompt. Victims are expected to contact the crooks and then receive the decryption key. Nonetheless, whether users receive the files after transmitting the money remains still an answered question.
The malware contains striking similarities to the variation of AiraCrop – version of NMoreira. Furthermore, the ransom message does not contain clear indication how much the crooks require. Individual cases reveal that the prevalent requirement is 0.3 BTC (approximately $377). Thus, it would be wiser to remove XPan rather rely on crooks' conscience.
From our report of Apr 2017 · not reviewed since
Transmitting the malware
Its distribution method clearly stands out from other infections.
Unlike other crypto-malware, this virus is installed manually via RDP (Remote Desktop Protocol) brute force assaults . In short, it operates as the protocol for Windows Remote Desktop. Its key function is to allow remote administrative access to the computer.
Thus, the brute force includes scanning for vulnerable IT ranges and RDP servers. Likewise, the cyber villain accesses the device as a "administrator." It is also known that this variation prefers targeting business companies.
However, it would be futile to think that the malware would not shift its attention to the broader virtual community. In that case, in order to limit the possible risk XPan hijack, install an anti-spyware, for instance, or . They are also practical in dealing with less destructive but more sneaky PUPs.
From our report of Apr 2017 · not reviewed since
The eradication guide of Xpan ransomware
Time plays a significant factor in dealing with malware.
Thus, launch malware removal utility and start XPan removal. If you notice that some system functions ceased working, use the below instructions. Only when this procedure is completed, you may advance towards data decryption stage. Do not attempt to remove Xpan virus manually as you may only leave more vulnerabilities for future cyber attacks.
[GI=method-1]Launch Safe Mode with Networking to gain access to the computer. Then you will be able to terminate Xpan ransomware
This is one of the alternative solutions to recover the data unless you failed to backup your files in advance.
The benefit of Shadow Explorer
If you encounter ransomware in the future, you might benefit from this program. It uses shadow volume copies. Certainly, this method works as long as the virus does not delete shadow volume copies beforehand.
You might find the decrypter here.
How to remove XPan ransomware 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 XPan ransomware 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
XPan ransomware 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: 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 identify the family
Find the ransom note, usually a
.txt,.htmlor .hta file in every folder or on the desktop, and copy it with one or two encrypted files to a USB stick.From another device, upload them to ID Ransomware or No More Ransom's Crypto Sheriff, which name the family from the note and the file extension. Write down the contact address and your personal ID from the note for the report.
Warning: Never contact the attackers from the infected Windows 11 or Windows 10 PC.
Windows 11: the ransom note and encrypted files to copy for identification. Full procedure with screenshots: Ransomware: first steps, finding a decryptor and recovering files
Step 3: Check for a free decryptor
For XPan ransomware virus, no free decryptor is known (checked 6 October 2026). Search the family name in the No More Ransom decryption tools list and in the free decryptors of Emsisoft, Avast and Kaspersky, because new tools appear years after an attack.
Important: Keep the encrypted files even if nothing works today, and do not pay before every free option is ruled out: payment does not guarantee a working key.
Decryptors run on Windows 11 and Windows 10, but only after the ransomware itself is removed.
Full procedure with screenshots: Ransomware: first steps, finding a decryptor and recovering files
Step 4: Remove the ransomware before you restore or decrypt
Restoring or decrypting files while XPan ransomware 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 11: Windows Security > Virus & threat protection > Scan options. Full procedure with screenshots: Run a Microsoft Defender Offline scan
Step 5: Look for shadow copies of the files
Open Command Prompt as administrator and run
vssadmin list shadows. If it lists copies dated before the attack, right-click a folder with encrypted files in File Explorer, choose Properties > Previous Versions, and open or restore a version from before that date.ShadowExplorer, a free tool, shows the same copies when the tab is empty or hidden. Most current families delete shadow copies, so an empty list is normal, but the check takes two minutes on Windows 11 or Windows 10.
Windows 11: vssadmin list shadows shows whether shadow copies exist. Full procedure with screenshots: Ransomware: first steps, finding a decryptor and recovering files
Step 6: Restore the files from a backup or recover deleted originals
Restore from an external backup, File History or OneDrive's version history, choosing a date before the attack. Connect the backup drive only after the scans are clean, or the ransomware encrypts it too.
If there is no backup, file recovery software can sometimes find the deleted originals, because some ransomware writes an encrypted copy and deletes the original file.
Stop writing to the drive and try recovery on Windows 11 or Windows 10 before new files overwrite the space.
Full procedure with screenshots: Recover deleted files (Recycle Bin, backups, OneDrive) On uGetFix
Instructions for each browser and system
The detailed steps for every browser and system this guide covers. Open the one you use.
Manual removal using Safe Mode
Important! →
Manual removal guide might be too complicated for regular computer users. It requires advanced IT knowledge to be performed correctly (if vital system files are removed or damaged, it might result in full Windows compromise), and it also might take hours to complete. Therefore, we highly advise using the automatic method provided above instead.
Step 1. Access Safe Mode with Networking
Manual malware removal should be best performed in the Safe Mode environment.
Windows 7 / Vista / XP
- Click Start > Shutdown > Restart > OK.
- When your computer becomes active, start pressing F8 button (if that does not work, try F2, F12, Del, etc. - it all depends on your motherboard model) multiple times until you see the Advanced Boot Options window.
- Select Safe Mode with Networking from the list.
Windows 10 / Windows 8
- Right-click on Start button and select Settings.
- Scroll down to pick Update & Security.
- On the left side of the window, pick Recovery.
- Now scroll down to find Advanced Startup section.
- Click Restart now.
- Select Troubleshoot.
- Go to Advanced options.
- Select Startup Settings.
- Press Restart.
- Now press 5 or click 5) Enable Safe Mode with Networking.
Step 2. Shut down suspicious processes
Windows Task Manager is a useful tool that shows all the processes running in the background. If malware is running a process, you need to shut it down:
- Press Ctrl + Shift + Esc on your keyboard to open Windows Task Manager.
- Click on More details.
- Scroll down to Background processes section, and look for anything suspicious.
- Right-click and select Open file location.
- Go back to the process, right-click and pick End Task.
- Delete the contents of the malicious folder.
Step 3. Check program Startup
- Press Ctrl + Shift + Esc on your keyboard to open Windows Task Manager.
- Go to Startup tab.
- Right-click on the suspicious program and pick Disable.
Step 4. Delete virus files
Malware-related files can be found in various places within your computer. Here are instructions that could help you find them:
- Type in Disk Cleanup in Windows search and press Enter.
- Select the drive you want to clean (C: is your main drive by default and is likely to be the one that has malicious files in).
- Scroll through the Files to delete list and select the following:
Temporary Internet Files
Downloads
Recycle Bin
Temporary files - Pick Clean up system files.
- You can also look for other malicious files hidden in the following folders (type these entries in Windows Search and press Enter):
%AppData%
%LocalAppData%
%ProgramData%
%WinDir%
After you are finished, reboot the PC in normal mode.
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
XPan ransomware virus could only hurt the files that had no second copy, and the signs (files that end in .one 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.
Protect your privacy - employ a VPN
There are several ways how to make your online time more private - you can access an incognito tab.
However, there is no secret that even in this mode, you are tracked for advertising purposes. There is a way to add an extra layer of protection and create a completely anonymous web browsing practice with the help of VPN. This software reroutes traffic through different servers, thus leaving your IP address and geolocation in disguise.
Besides, it is based on a strict no-log policy, meaning that no data will be recorded, leaked, and available for both first and third parties. The combination of a secure web browser and VPN will let you browse the Internet without a feeling of being spied or targeted by criminals.
No backups? No problem. Use a data recovery tool
If you wonder how data loss can occur, you should not look any further for answers - human errors, malware attacks, hardware failures, power cuts, natural disasters, or even simple negligence.
In some cases, lost files are extremely important, and many straight out panic when such an unfortunate course of events happen. Due to this, you should always ensure that you prepare proper data backups on a regular basis.
If you were caught by surprise and did not have any backups to restore your files from, not everything is lost. is one of the leading file recovery solutions you can find on the market - it is likely to restore even lost emails or data located on an external device.
Questions about XPan ransomware virus
Is there a decryptor for .one files?
That depends on the family behind the .one extension, which this guide cannot confirm yet from the reports alone. Check No More Ransom and ID Ransomware with your ransom note and one encrypted file; they list families with free tools.
If none exists today, keep the encrypted files and a copy of the note on a separate drive, because decryptors are sometimes published months later after flaws are found or servers are seized. Never buy a decryptor from a website that is not the security company that made it.
How do I open .one files?
You cannot open them by renaming or by choosing another program. The .one ending shows that XPan ransomware 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 XPan ransomware virus. Store the encrypted files on an external disk until then.
Did XPan ransomware virus steal my files or passwords?
We do not know yet. Nothing published so far shows data theft by XPan ransomware virus, but the only confirmed sign is files that end in .one 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.
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.
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.
How did XPan ransomware virus get on my computer?
The way XPan ransomware 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 .one 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 XPan ransomware 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 reinstall Windows after the .one attack?
Reinstalling removes the ransomware but not the encryption: your files ending in .one stay encrypted afterwards. So first copy the encrypted files and the ransom note to a separate drive, in case a decryptor appears later. Then decide:
- a clean-up with an offline scan is often enough for home PCs
- while a full reset is safer if remote access was involved
- scans keep finding new items
Restore your backups only after the PC is clean, and change passwords from another device.
If I delete XPan ransomware virus, do my files come back?
Unfortunately not. Deleting the program only ends the attack; every file that already has the .one ending stays encrypted, because decryption needs a key that only the attackers hold.
That is why this guide separates removal from recovery. First make sure XPan ransomware virus is gone with an offline scan, then work through the recovery list:
- backups
- OneDrive history
- Previous Versions
- copies on other devices and
- if one exists
- a decryptor
Do not rename or edit the encrypted files in the meantime, and keep them even if nothing works today.
Will Fortect remove XPan ransomware 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 XPan ransomware 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
- SecureList: XPan, I am your father (read October 6, 2026)
- ZDnet: Brute force RDP attacks depend on your mistakes (read October 6, 2026)
- CISA: StopRansomware (read October 6, 2026)
- No More Ransom (read October 6, 2026)
- FTC: How to recognize, remove and avoid malware (read October 6, 2026)