If you can’t open your photos, documents, or files and also see the .isal extension on them, your PC is definitely infected with Isal ransomware. It pertains to STOP/Djvu ransomware group
Isal ransomware encrypts personal documents located on the victim’s computer with the extension “.isal” and then generates the ransom note in each folder which contains encrypted files. The instructions are put on the victim’s PC in the “readme.txt” file. Its activity is generally comparable to other representatives of the same family: Btos, Bttu, Btnw.
What is Isal Ransomware?
Name | Isal Virus |
Ransomware family1 | DJVU/STOP2 ransomware |
Extension | .isal |
Ransomware note | _readme.txt |
Ransom | From $490 to $980 |
Contact | support@fishmail.top, datarestorehelp@airmail.cc |
Symptoms | The images, videos, and other documents have the “.isal” extension and cannot be opened by any programs |
Fix Tool | Trojan Killer – ransomware infections tool. 14-day free trial. |
Isal is file-encrypting ransomware that prevents normal access to your text files, Excel tables, videos and images by ciphering them. It marks the encrypted files with the “.isal” extension. Then Isal ransomware adds a ransom note (readme.txt) to each folder. In this note, you can see the instructions to pay the ransom ($490-$980 in Bitcoin) to a specified Bitcoin wallet. The AES-256 or RSA-1028 cipher it uses to cipher the documents is not decryptable with contemporary computers. Even quantum PCs that currently exist will spend thousands of years to find the decryption key.
How dangerous is the Isal ransomware?
When Isal ransomware appears on your PC, it will check your computer for photos, videos, and also important documents. It [ciphers all widespread file formats- .psd, .doc, .docx, .xls, .xlsx, .pdf, .jpeg, .png, et cetera. When these files are found, the ransomware will encrypt them and also change their extension to “.isal” to ensure that you understand what happened.
After the Isal ransomware ciphered the files on your computer, it will generate the last “readme.txt” file on the desktop. In addition to the money transferring instructions, the victims also see the email addresses to contact the cybercriminals – datarestorehelp@airmail.cc and support@fishmail.top.
Here is the money ransom note that the Isal ransomware shows to its victims:
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:
https://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:
support@fishmail.top
Reserve e-mail address to contact us:
datarestorehelp@airmail.cc
How did the Isal ransomware get on my computer?
The Isal ransomware spreads by placing websites to download hacked programs or games. Cybercriminals who distribute this ransomware are very foxy, and try to stay connected with current things. New games introductions, new popular movies – Isal creators make whatever to get their victims on that. One of the most preferred tactics these burglars put to use is one-day websites with torrent downloading links. Nevertheless, following the current trends is not the only way these crooks use. Methods that have already turned into classic, such as email spamming, are likewise standard for STOP/Djvu ransomware spreading.

The example of email spamming that may lead to Isal ransomware injection
Preventing this ransomware does not need a lot of effort. Using the standard rules of PC hygiene will substantially reduce all risks. Remember that launching all files you get on email is not a good habit. Even worse situation is to enable macros in Microsoft Office files. But it is better to prevent the malware intrusion at the moment when you have only opened the email message. Examining the sender’s address can say a lot about what you can anticipate, and also when you see things like “support@amazon.com”– it is likely a trustworthy e-mail. Meanwhile, stuff that tries to look like Amazon or FedEx shipment notice, however, uses the email address of “amazonspurrot1363@gmail.com”– should make you get on the alarm. Above, you can see the example of such a message.
Illegal sources of different digital things need some extra explanation. Going against copyright law already throws you to the possibility of being fined. However, using torrent trackers or third-party sites to download “free” programs likewise exposes you to different malware. Nobody can regulate unnamed individuals that start the torrent seeding or publish the hacked program version on the website with pirated program.
Isal virus removal instructions.
Download Trojan Killer Portable |
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This guide below shows how to use Trojan Killer Portable3 for Isal virus detection and removal:
STEP 1. Download and install Trojan Killer.
STEP 2. Click on "Finish".
STEP 3. Wait until necessary updates are downloaded and installed.
STEP 4. Select computer scan type.
STEP 5. The software will begin scanning your computer.
STEP 6. Click on "Cure PC".
Restore the files encrypted by the Isal ransomware
In most cases, it’s impossible to recover the files encrypted by the Isal ransomware because the private key needed to unlock the encrypted files is only available through cybercriminals. However, we’ve listed one option you can use to recover your files below.
Warning! Make sure you remove the ransomware from your system first, otherwise, it will repeatedly encrypt your files.
If your files were encrypted with an offline key, there is a chance you can recover them by using Emsisoft Decryptor for the STOP/Djvu decryption tool. Follow the below guide to recover your files using the Emsisoft Decryptor for STOP/Djvu.
- You can download Emsisoft Decryptor for STOP Djvu by clicking this link.
- When the decryptor has finished downloading, double-click on “decrypt_STOPDjvu.exe” to run this program on your computer.
- Click the “Decrypt” button to start the decryption process for Isal files. The screen will switch to a status view, informing you about your files’ current process and decryption status.
- The decryptor will inform you once the decryption process will be finished. If you require the report for your records, you can save it by clicking the “Save log” button.
If the Emsisoft Decryptor can’t decrypt your .isal files and you do not plan on paying the ransom, it is advised that you make an image of the encrypted drives so that you can decrypt them in the future.
Your computer should now be free of the Isal ransomware infection. However, suppose your current antivirus allowed this malicious program on your computer. In that case, you might want to consider purchasing the full-featured version of Trojan Killer to protect against these types of threats in the future.
Remove ISAL Ransomware Virus (DECRYPT .isal FILES)

Name: ISAL Virus
Description: ISAL Virus is a STOP/DJVU family of ransomware-type virus. It encrypts files, video, photos, documents. Encrypted files can be tracked by a specific isal extension. ISAL ransomware asks victims for a ransom fee about $490 - $980 in Bitcoin.
Offer price: 480
Currency: $
Operating System: Windows
Application Category: Virus
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- About DJVU (STOP) Ransomware: https://gridinsoft.com/ransomware/djvu
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