Polski Ransomware – Remove and Restore .aes Files
THREAT REMOVAL

Polski Ransomware – Remove and Restore .aes Files

The article will help you remove Polski ransomware totally. Follow the ransomware removal instructions at the end of the article.

Polski is a ransomware cryptovirus. Your files will become encrypted and receive the extension .aes when the encryption process finishes. Malware researchers believe that the AES encryption algorithm with 256-bit ciphers is used for locking the files. The Polski cryptovirus will leave a ransom note with demands for payment, written in the Polish language. Continue to read below to see how you could try to potentially restore some of your data.

Threat Summary

NamePolski
TypeRansomware
Short DescriptionThe ransomware encrypts files on your computer and displays a ransom message afterward.
SymptomsThe ransomware will encrypt your files and put the extension .aes to them after it finishes its encryption process.
Distribution MethodSpam Emails, Email Attachments
Detection Tool See If Your System Has Been Affected by Polski

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Malware Removal Tool

User ExperienceJoin Our Forum to Discuss Polski.
Data Recovery ToolWindows Data Recovery by Stellar Phoenix Notice! This product scans your drive sectors to recover lost files and it may not recover 100% of the encrypted files, but only few of them, depending on the situation and whether or not you have reformatted your drive.

Polski Ransomware – Update April 2018

Update! CERT.PL – the Computer Emergency Response Team of Poland, have issued a statement about a decryption tool available for the ransomware described in this article.

With the help of Google Translate, you can see some of the information posted on the https://nomoreransom.cert.pl/vortex/ page below.

District Prosecutor’s Office in Warsaw informs you that it conducts proceedings PO II Ds 129.2017 against Tomasz T. responsible, among others for encrypting computers using the Vortex / Flotera / Polski ransomware viruses.

The tool on this page will allow you to obtain a key that can recover encrypted files.

Please note that at this moment the tool does not have keys from all campaigns in which the software encrypting files was used in. As new security measures are added, new keys will be added, so please check files that you have not been able to recover regularly.

If you managed to decrypt the files using the key obtained on this site, we kindly ask you to submit a notification of suspected offense together with the prosecutor in the nearest place of residence for your Police unit with reference to the case file PO II Ds 129.2017 District Prosecutor’s Office in Warsaw.

If you have an e-mail message that the perpetrator sent to you a malicious file, please save it on a CD/DVD (along with full headers and attachments) and hand it over to the police as an attachment to the interrogation protocol. It will not be necessary to submit for examination the computer on which the files were encrypted.

– District Prosecutor’s Office in Warsaw

Select or drag the encrypted file below to check if we have the key needed to decrypt it. The key recovery process can take about a minute. Only a small portion of the file will be sent.

Click and select the file or drag it here.
[EMPTY FIELD] Currently selected file: (missing).

In case files are encrypted with one of the first versions of the Vortex ransomware, you can try using the tool created by Michael Gillespie from MalwareHunterTeam: VortexDecrypter-Michael_Gillespie.zip.

If you managed to recover the key:

The recovered key can be used to decrypt files using the free AES Crypt program. The recovered key from one file should decrypt all encrypted files on your PC.

Contacts

If you have any questions, please contact CERT.pl at info@cert.pl, alternatively you can post a question below, in the comment section of this article.

Polski Ransomware – Infection

Polski ransomware might spread its infection with various methods. The payload file which initiates the malicious script for this ransomware is seen circling the Internet by some malware researchers. If you get that file onto your computer system and execute it – the system will become infected.

Polski ransomware might also distribute its payload file on social media and file-sharing services. Freeware which is found on the Web can be presented as helpful also be hiding the malicious script for the cryptovirus. Refrain from opening files right after you have downloaded them. You should first scan them with a security tool, while also checking their size and signatures for anything that seems out of the ordinary. You should read the tips for preventing ransomware found in the forum section.

Polski Ransomware – Description

Polski ransomware is also a cryptovirus. Malware researchers believe that it might be targeting mainly Polish-speaking people, as its ransom message is written in the Polish language. The extension .aes is appended to all files that become locked after the encryption process is set and done.

This is the screen with the ransom message that appears after encryption:

Polski ransomware could make entries in the Windows Registry to achieve persistence, and probably launch or repress processes in a Windows environment. Such entries are typically designed in a way to launch the virus automatically with each start of the Windows operating system.

The ransom note will be saved in the following files:

  • !!! – – ODZYSKAJ-PLIKI – – !!!.txt
  • !!! – – ODZYSKAJ-PLIKI – – !!!.htm

The note is written in Polish and gives details about the restoration of your files and how to pay the cybercriminals. You can view the ransom message that loads after file encryption right here:

That ransom note reads the following:

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

P O L S K I R A N S O M W A R E

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

#################################################################

Nie możesz znaleźć potrzebnych plików na dysku twardym ?
Zawartość Twoich plików jest nie do otwarcia?

Jest to skutek działania programu który zaszyfrował większość Twoich danych przy pomocy silnego alogrytmu AES-256,
używanego min. przez służby mundurowe do zatajania danych przesyłanych drogą elektroniczną.
Twoje zdjęcia, faktury, bazy danych zostały zaszyfrowane !!

Przeczytaj więcej o wirusach typu ransomware:
http://trybawaryjny.pl/co-to-jest-cryptolocker-i-jak-sie-przed-nim-bronic/ – Cryptolocker co to jest i jak się przed nim
bronić
http://bitdefender.pl/ransomware-co-to-jest-i-jak-sie-przed-tym-chronic – Bitdefender.pl – Ransomware Co to Jest
http://datablog.krollontrack.pl/2015/03/18/ransomware-placic-czy-nie-placic/ – Ransomware płacić czy nie płacić?

Jedyna metoda aby odzyskać Twoje pliki to wykupienie od nas programu deszyfrującego wraz z jednorazowym kluczem
wygenerowanym unikalnie dla Ciebie!

##################################################################

W momencie gdy to czytasz całość jest już ukończona, wytypowane pliki zostały zaszyfrowane a sam wirus usunięty z
Twojego komputera.
Klucz składający się z kilkudziesięciu znaków potrzebny do odszyfrowania danych z dysku znajduje się w miejscu
dostępnym tylko dla nas !

Możesz w nieskończoność próbować instalacji kolejnych programów antywirusowych,
Formatować system operacyjny to jednak nic nie zmieni !
Jeśli nie zastosujesz się do naszych instukcji nie odzyskasz plików które były na dysku HDD.

##################################################################

Gdy już postanowisz odzyskać swoje dane skontaktuj się z nami pod adrem e-mail: rsapl@openmailbox.org lub
estion@sigaint.org
Możesz też napisać na Gadu-Gadu : 61621122

2 Pliki odszyfrujemy za darmo aby udowodnić że jesteśmy w stanie tego dokonać!
Za resztę niestety musisz zapłacić !

Cena za odszyfrowanie wszystkich plików: 249$
Uwaga ! Nie marnuj czasu, czas to pieniądz za 72 godziny cena wzrośnie o 100%!

##################################################################

The note of the Polski ransomware states that your files are encrypted with the AES 256-bit encryption algorithm. A ransom sum of 249 USD is demanded as payment for unlocking your data. You are given 72 hours by the ransom criminals to unlock your files, or else the ransom sum doubles in price. You should NOT under any circumstance pay the cybercriminals. Your files may not get restored, and nobody could give you any real guarantee for that. Furthermore, giving money to these criminals will likely motivate them to create more ransomware or do other criminal activities.

However, you should try to get those 2 files decrypted for free, because they might come in handy if an actual decrypter is released.

For the moment, no list with file extensions that the Polski ransomware seeks to encrypt is available, but files with the following extensions are the most logical to get encrypted:

→.7z, .bmp, .doc, .docm, .docx, .html, .jpeg, .jpg, .mp3, .mp4, .pdf, .php, .ppt, .pptx, .rar, .rtf, .sql, .tiff, .txt, .xls, .xlsx, .zip

Each file that gets encrypted will receive the same extension appended to every one of them, and that is the .aes extension.

The Polski cryptovirus is very likely to delete the Shadow Copies from the Windows operating system by utilizing the following command:

→vssadmin.exe delete shadows /all /Quiet

Read on through and check out what type of ways you can try to potentially restore some of your data.

Remove Polski Ransomware and Restore .aes Files

If your computer got infected with the Polski ransomware virus, you should have a bit of experience in removing malware. You should get rid of this ransomware as quickly as possible before it can have the chance to spread further and infect other computers. You should remove the ransomware and follow the step-by-step instructions guide provided below.

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Berta Bilbao

Berta is a dedicated malware researcher, dreaming for a more secure cyber space. Her fascination with IT security began a few years ago when a malware locked her out of her own computer.

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Windows Mac OS X

How to Remove Polski from Windows.


Step 1: Boot Your PC In Safe Mode to isolate and remove Polski

OFFER

Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your PC with SpyHunter

Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter's malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria

1. Hold Windows key() + R


2. The "Run" Window will appear. In it, type "msconfig" and click OK.


3. Go to the "Boot" tab. There select "Safe Boot" and then click "Apply" and "OK".
Tip: Make sure to reverse those changes by unticking Safe Boot after that, because your system will always boot in Safe Boot from now on.


4. When prompted, click on "Restart" to go into Safe Mode.


5. You can recognise Safe Mode by the words written on the corners of your screen.


Step 2: Uninstall Polski and related software from Windows

Here is a method in few easy steps that should be able to uninstall most programs. No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it. To do that:


1. Hold the Windows Logo Button and "R" on your keyboard. A Pop-up window will appear.


2. In the field type in "appwiz.cpl" and press ENTER.


3. This will open a window with all the programs installed on the PC. Select the program that you want to remove, and press "Uninstall"
Follow the instructions above and you will successfully uninstall most programs.


Step 3: Clean any registries, created by Polski on your computer.

The usually targeted registries of Windows machines are the following:

  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce

You can access them by opening the Windows registry editor and deleting any values, created by Polski there. This can happen by following the steps underneath:

1. Open the Run Window again, type "regedit" and click OK.


2. When you open it, you can freely navigate to the Run and RunOnce keys, whose locations are shown above.


3. You can remove the value of the virus by right-clicking on it and removing it.
Tip: To find a virus-created value, you can right-click on it and click "Modify" to see which file it is set to run. If this is the virus file location, remove the value.

IMPORTANT!
Before starting "Step 4", please boot back into Normal mode, in case you are currently in Safe Mode.
This will enable you to install and use SpyHunter 5 successfully.

Step 4: Scan for Polski with SpyHunter Anti-Malware Tool

1. Click on the "Download" button to proceed to SpyHunter's download page.


It is recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria.


2. After you have installed SpyHunter, wait for it to update automatically.

SpyHunter5-update-2018


3. After the update process has finished, click on the 'Malware/PC Scan' tab. A new window will appear. Click on 'Start Scan'.

SpyHunter5-Free-Scan-2018


4. After SpyHunter has finished scanning your PC for any files of the associated threat and found them, you can try to get them removed automatically and permanently by clicking on the 'Next' button.

SpyHunter-5-Free-Scan-Next-2018

If any threats have been removed, it is highly recommended to restart your PC.

Step 5 (Optional): Try to Restore Files Encrypted by Polski.

Ransomware infections and Polski aim to encrypt your files using an encryption algorithm which may be very difficult to decrypt. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.

1. Download the reccomended Data Recovery software by clicking on the link underneath:

If the above link does not work for you and your region, try the other two links below, that lead to the same product:

and

2. On the download page, click on the "Download" button:

3. Click on "Save File" button:

4. Accept all agreements and click "Next":

5. After all the "Next" steps, click on "Install" and then wait for the installation to complete:

6. Run the software. Click on the location to scan for missing or deleted files and click on "Scan":

7. Wait for the scan to complete, it may take some time. Be advised that this scan is not 100% guaranteed to recover all files, but it does have some chance to get your data back:


Windows Mac OS X

Get rid of Polski from Mac OS X.


Step 1: Uninstall Polski and remove related files and objects

OFFER
Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your Mac with SpyHunter for Mac
Keep in mind, that SpyHunter for Mac needs to purchased to remove the malware threats. Click on the corresponding links to check SpyHunter’s EULA and Privacy Policy


1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:


2. Find Activity Monitor and double-click it:


3. In the Activity Monitor look for any suspicious processes, belonging or related to Polski:

Tip: To quit a process completely, choose the “Force Quit” option.


4. Click on the "Go" button again, but this time select Applications. Another way is with the ⇧+⌘+A buttons.


5. In the Applications menu, look for any suspicious app or an app with a name, similar or identical to Polski. If you find it, right-click on the app and select “Move to Trash”.


6: Select Accounts, after which click on the Login Items preference. Your Mac will then show you a list of items that start automatically when you log in. Look for any suspicious apps identical or similar to Polski. Check the app you want to stop from running automatically and then select on the Minus (“-“) icon to hide it.


7: Remove any left-over files that might be related to this threat manually by following the sub-steps below:

  • Go to Finder.
  • In the search bar type the name of the app that you want to remove.
  • Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
  • If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.

In case you cannot remove Polski via Step 1 above:

In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:

Disclaimer! If you are about to tamper with Library files on Mac, be sure to know the name of the virus file, because if you delete the wrong file, it may cause irreversible damage to your MacOS. Continue on your own responsibility!

1: Click on "Go" and Then "Go to Folder" as shown underneath:

2: Type in "/Library/LauchAgents/" and click Ok:

3: Delete all of the virus files that have similar or the same name as Polski. If you believe there is no such file, do not delete anything.

You can repeat the same procedure with the following other Library directories:

→ ~/Library/LaunchAgents
/Library/LaunchDaemons

Tip: ~ is there on purpose, because it leads to more LaunchAgents.


Step 2: Scan for and remove Polski files from your Mac

When you are facing problems on your Mac as a result of unwanted scripts and programs such as Polski, the recommended way of eliminating the threat is by using an anti-malware program. Combo Cleaner offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.


Step 3 (Optional): Try to Restore Files Encrypted by Polski on your Mac.

Ransomware for Mac Polski aims to encode all your files using an encryption algorithm which may be very difficult to decode, unless you pay money. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files, but only in some cases. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.

1. Download the recommended Data Recovery Mac app by clicking on the link underneath:

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