Isal Virus

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*Isal is a variant of Stop/DJVU. Source of claim SH can remove it.


Isal is Ransomware-based malware that uses file encryption to extort money from its victims. After encrypting the files on the infected computer, Isal demands a ransom for the decryption key.

The Isal virus file ransom note

Ransomware viruses such as Isal, Btos and Iswr are said to infect your device without any visible symptoms. It takes just one careless click on a misleading ad, pop-up message, or email attachment to get contaminated, but you may also catch the malware from torrents, free online download links, or fake update requests.

A general feature of all forms of Ransomware is that they deny access to something valuable on your computer and after that they ask for a ransom to make it accessible again. In the case of an infection with Isal, it is the user data that is stored on the compromised computer which gets locked-up. Unfortunately, nearly all viruses of this category are very difficult to deal with and, at times, there may not even be a fully effective way to reverse what has been done.

On this page, however, there is a removal guide intended to help you remove Isal and possibly recover the files that have been encrypted. So, if you’ve been greeted by a scary notification that is asking you to pay ransom in order to access your documents, images, archives, and other data of high importance to you, we suggest you take a look at the instructions in the guide below and see if they can help you avoid the ransom payment.

The Isal virus

The Isal virus is a Ransomware-based threat that holds user files hostage through encryption and requires a ransom payment for their decryption. After the attack, the Isal virus shows a ransom-demanding message on the screen of the infected device and specifies a deadline for the ransom payment.

Threats like Isal typically infect your PC and then scan your hard drives for frequently used data formats. Then they encrypt the data with a code that is incredibly hard to crack and ask you to make a payment to a given cryptocurrency wallet if you want to obtain the decryption key. Frankly speaking, after your files get encrypted, everything becomes really complicated. Even paying the ransom that the hackers demand might not be enough to get the files back.

The Isal file encryption

The Isal file decryption is a process that is expected to make the encrypted files accessible again. However, the Isal file decryption is usually only possible if the corresponding decryption key is applied to the encrypted files.

Isal File

Unfortunately, there is no universal solution that can help you deal with the consequences of a Ransomware attack. Therefore, it might be a good idea to consult and work together with an expert from your area. This might turn out to be costly, but it’s still a better option than giving some scammers your hard-earned money without any guarantee that your valuable information will be accessible again.

Another thing you could do is to search in blogs and forums for possible solutions. Alternatively, you can use a detailed removal guide like the one below to locate and remove Isal from your system. This will allow you to use your computer normally and connect external file backup copies or create new files without them getting encrypted by the Ransomware. Our guide below has a section with free file-recovery instructions which may also be of interest to you. Check it out once you remove the infection or see our list of free decryptor tools which could potentially help you crack the Isal encryption.



Name Isal
Type Ransomware
Detection Tool

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 *Isal is a variant of Stop/DJVU. Source of claim SH can remove it.

Remove Isal Ransomware 




The next instructions will require you to restart your computer. Therefore, if you don’t want to lose this Isal removal guide, we recommend that you Bookmark the page in your browser, so you can quickly reload it as soon as the computer restarts. 

Next, for the successful removal of all ransomware-related traces, we advise you to reboot the infected computer in Safe Mode and then get back to this page to complete the rest of the instructions. 

Once you enter Safe Mode successfully and the computer restarts, click the Start menu button, type msconfig in the search field and hit enter. Then select Startup from the tabs at the top:




If you detect that Isal has added malicious Startup Items in the list, make sure that you Uncheck their checkmark in order to disable them and then click the Ok button. 



 *Isal is a variant of Stop/DJVU. Source of claim SH can remove it.

Next, open the Task Manager (CTRL + SHIFT + ESC) and click on the Processes Tab to check for any active malicious processes that are possibly running in the background: 



If a given process looks questionable, right click on it to open its File Location folder. After that, use the free online virus scanner below to scan the stored files for malware:

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    A single file that is detected as dangerous during the scan is enough to indicate that there is something malicious with the process that is running. Therefore, your next action should be to end the related processes and delete the folder that contains malicious files.




    Back to the Start menu button, click it and  copy the next line in the search box:

    notepad %windir%/system32/Drivers/etc/hosts

    Open the Hosts file that appears on the results and scroll the text until you find Localhost. Then, if the ransomware has added some malicious IP addresses in the file. If something disturbing grabs your attention, please write us in the comments. The image below describes what you should be looking for:

    hosts_opt (1)




    *Isal is a variant of Stop/DJVU. Source of claim SH can remove it.

    The hardest part of the removal of Isal is to correctly detect and remove the malicious entries that the ransomware might have added in the Registry. This task may be complicated for inexperienced users, therefore, if you are not confident enough, please do not delete or change anything in the Registry but rather use a professional removal tool (such as the one recommended on this page) to clean the system from malicious files.

    If, anyways, you have decided to use the manual method, type Regedit in the windows search field and press Enter to start the Registry Editor.

    Next, once in it, open a Find box by pressing CTRL and F together and type the name of the ransomware. Then, search the Registry for entries matching that name and if anything gets detected, then it most likely needs to be removed as it could be linked to the infection.

    It is also a good idea to check a few more system locations where malicious files may hide. For this, type each of the lines listed below in the Windows Search Field and check them for entries that have been added around the time the ransomware infection occurred:
    1. %AppData%
    2. %LocalAppData%
    3. %ProgramData%
    4. %WinDir%
    5. %Temp%
    Make sure you delete the content of the Temp folder and check the other folders for randomly named sub-folders or files that look suspicious.
    How to Decrypt Isal files
    Once you are sure that Isal has been removed completely, you can check out the file-recovery solutions that may help you get some of the encrypted files back. If you need more help to deal with the ransomware infection, please download the professional removal program we recommend or try our free online virus scanner

    About the author


    Lidia Howler

    Lidia is a web content creator with years of experience in the cyber-security sector. She helps readers with articles on malware removal and online security. Her strive for simplicity and well-researched information provides users with easy-to-follow It-related tips and step-by-step tutorials.

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