Cryptolocker Portuguese ransomware virus: what it is and how to remove it
CryptoLocker Portuguese virus, just like its predecessor, belongs to ransomware category. Once installed on a target computer system, it works silently and unnoticeably encrypts all victim's files one after another, adding .id-[victim's ID]_steaveiwalker@india.com_ file extensions to files on its way.
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.
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Cryptolocker Portuguese ransomware virus: summary
| Detection names | No Microsoft detection name is known |
|---|---|
| Ransom note | Not named in our report; the text of the note is not in our records |
| Contact | steaveiwalker@india.com, steveiwalker@163.com |
| Encrypted file extension | Not recorded in our earlier report |
| 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 8 more facts
| Damage | Not recorded in the old report |
|---|---|
| Name | Cryptolocker Portuguese ransomware virus |
| Type | File-encrypting ransomware |
| Symptoms | An unknown program in Installed apps |
| Evidence | 6 write-ups by security sites; details still limited |
| Free decryptor | No free decryptor is known (checked 7 October 2026) |
| First seen | 14 February 2017 |
| Facts checked | 7 October 2026 |
How Cryptolocker Portuguese ransomware virus behaves
From our report of Feb 2017 · not reviewed since
What is CryptoLocker Portuguese virus and how does it function?
CryptoLocker Portuguese virus, just like its predecessor, belongs to ransomware category.
Once installed on a target computer system, it works silently and unnoticeably encrypts all victim's files one after another, adding .id-[victim's ID]_steaveiwalker@india.com_ file extensions to files on its way. We call this CryptoLocker version Portuguese because it refers to its victims in this language – the ransom note is written not in English, but in the Portuguese language.
The ransom note itself is called COMO_ABRIR_ARQUIVOS.txt. In this text document, the victim finds information about the virus and what has it done to the computer and files stored in it.
The ransomware crooks who created CryptoLocker Portuguese ransomware want to get 1 Bitcoin; otherwise, they refuse to give up the decryption key, which is securely stored on their private servers. According to them, there is no way to recover files without a special decryption software, which only they can provide. They claim to be using Rijndael encryption, which is simply a different name to AES encryption.
They want 1 Bitcoin transferred to their Bitcoin wallet, and they ask the victim to make a photo or a screenshot of a completed transaction. Then the victim is supposed to send this screenshot to steaveiwalker@india.com or steveiwalker@163.com email address and wait for decryption instructions. However, ransomware crooks give you no guarantees that they will fulfill their promises after your transfer that 1 BTC to them.
They can quickly make off and take your money with them, leaving no decryption solution to you. The best way to retrieve your files is to use a backup after CryptoLocker Portuguese virus removal is finished. If you do not have a program to remove CryptoLocker Portuguese virus, we highly recommend using or .
From our report of Feb 2017 · not reviewed since
How did I get infected?
Ransomware similar to CryptoLocker Portuguese virus spreads via email spam, malvertising , phishing websites and pirated software.
You must avoid these ransomware infection sources if you want to keep your computer safe and sound. Please stay away from emails coming from unknown people and never agree to install any type of programs sent to you via email, and of course keep clear of any files transferred to you by suspicious individuals or companies.
To keep your PC protected, use anti-malware program and of course update all software regularly. Creating backups is a must, so if you do not have them yet, take care of this matter immediately!
The Cryptolocker Portuguese ransomware virus ransom note
We did not record the full text of the ransom note in our report.
How to remove Cryptolocker Portuguese 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 Cryptolocker Portuguese 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
Cryptolocker Portuguese 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 Cryptolocker Portuguese ransomware 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
Step 4: Remove the ransomware before you restore or decrypt
Restoring or decrypting files while Cryptolocker Portuguese 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.
From our report of Feb 2017 · not reviewed since
How to remove CryptoLocker Portuguese virus?
It is imperative to remove CryptoLocker Portuguese virus correctly.
This task is essential to make your computer safe to use again, so please do not try to do it in a rush. We advise you to rely on professional malware removal tools for a successful CryptoLocker Portuguese ransomware removal. Instructions on how to do it are given down below.
[GI=method-1]Restart your PC using instructions provided here. To remove CryptoLocker Portuguese virus, install a proper anti-malware software first.
This is how you use it:
ShadowExplorer helps to find Volume Shadow Copies (if the virus didn't delete them) and use them for data restoration.
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
Cryptolocker Portuguese ransomware virus could only hurt the files that had no second copy, and the signs (cryptolocker Portuguese ransomware virus in the list of installed apps) 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.
Stream videos without limitations, no matter where you are
There are multiple parties that could find out almost anything about you by checking your online activity.
While this is highly unlikely, advertisers and tech companies are constantly tracking you online. The first step to privacy should be a secure browser that focuses on tracker reduction to a minimum.
Even if you employ a secure browser, you will not be able to access websites that are restricted due to local government laws or other reasons. In other words, you may not be able to stream Disney+ or US-based Netflix in some countries. To bypass these restrictions, you can employ a powerful VPN, which provides dedicated servers for torrenting and streaming, not slowing you down in the process.
Data backups are important - recover your lost files
Ransomware is one of the biggest threats to personal data.
Once it is executed on a machine, it launches a sophisticated encryption algorithm that locks all your files, although it does not destroy them. The most common misconception is that anti-malware software can return files to their previous states. This is not true, however, and data remains locked after the malicious payload is deleted.
While regular data backups are the only secure method to recover your files after a ransomware attack, tools such as can also be effective and restore at least some of your lost data.
Questions about Cryptolocker Portuguese ransomware virus
When will a decryptor for Cryptolocker Portuguese ransomware virus be released?
Nobody can promise a date. When we last checked, on 7 October 2026, no free decryptor is known. Decryptors usually appear after one of three events:
- police seize the attackers' servers and keys
- the authors leak or publish the master keys
- researchers find a mistake in how the ransomware generates keys
Some families got a tool within weeks, others never. Keep the encrypted files and the note on an external drive, check No More Ransom every few months, and follow news about the Cryptolocker Portuguese ransomware virus family. A decryptor may need an original file, so keep any unencrypted copies too.
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 Cryptolocker Portuguese ransomware virus get on my computer?
The way Cryptolocker Portuguese 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 cryptolocker Portuguese ransomware virus in the list of installed apps, and check the Downloads folder and Installed apps sorted by date. Keep anything suspicious for your report, but do not run it again.
Did Cryptolocker Portuguese ransomware virus steal my files or passwords?
We do not know yet. Nothing published so far shows data theft by Cryptolocker Portuguese ransomware virus, but the only confirmed sign is cryptolocker Portuguese ransomware virus in the list of installed apps, 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 Cryptolocker Portuguese 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.
How do I open my .docx, .jpg and other files locked by Cryptolocker Portuguese?
You cannot open locked files normally while they stay encrypted, and renaming them will not help. Our earlier report did not record the extension that Cryptolocker Portuguese adds, so check one locked file name and the ransom note for it.
No free decryptor is known for this variant; check No More Ransom (nomoreransom.org) for updates. Do not rename the files, change the extension or edit them, because that can make recovery harder. Copy the locked files to an external drive before you clean the system, so a decryptor released later still has them.
How can I protect my files from Cryptolocker Portuguese and similar ransomware?
Keep tested backups, update the system and treat unexpected attachments as unsafe. Keep at least one backup copy offline, because ransomware also encrypts drives that stay connected. Install system and browser updates soon after they appear, and turn off remote desktop if you do not use it.
Do not open attachments or links from senders you did not expect, even when the message looks urgent. Use a standard user account for daily work instead of an administrator account. Restore a few files from your backup now and then to prove that it works.
Will Fortect remove Cryptolocker Portuguese 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 Cryptolocker Portuguese 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
- Phishtank: What is phishing? (read October 7, 2026)
- CISA: StopRansomware (read October 7, 2026)
- No More Ransom (read October 7, 2026)
- FTC: How to recognize, remove and avoid malware (read October 7, 2026)
- Microsoft Learn: Microsoft Defender Offline (read October 7, 2026)