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Iiof Virus


Iiof is a malicious Ransomware-based program used to restrict access to files that have great value to you with the idea of asking you to pay ransom. Typically Iiof places a complex encryption code on your most-used files and generates a ransom message on your screen.

The Iiof ransomware will leave a _readme.txt file with instructions

All Ransomware programs work in more or less a similar way. They ask money in exchange for undoing what they have secretly done. In your case, Iiof has probably prevented you from accessing some of your most important digital information and has asked you to transfer a certain amount of money as ransom. Since you are on this page, however, we will tell you about a few alternative methods to recover your files and to remove Iiof that don’t involve paying ransom. Just read the information that follows and check out the removal guide below. 

The Iiof virus

The Iiof virus is malicious file-encrypting software created by people with criminal intentions. The Iiof virus’ agenda typically includes encrypting a list of valuable user files and demanding a ransom in exchange for their decryption.

The Iiof virus will encrypt your files

The most common distribution methods of threats like Iiof, Sdjm, Fgnh include spam messages, torrents, cracked software installers, harmful attachments sent via instant messaging or email, malicious ads and Trojan horse viruses. Regardless of the method of infection, once the Ransomware gets inside the system it goes to work straight away. What it starts to do first is it searches all the drives to see which files you use most frequently. Then a list is created with all these files and the actual encryption process begins. The encryption process consists of converting your files into unreadable bits of data and changing their file extension. At the end of the encryption process, you will be notified about the attack with the help of a scary alert that demands a ransom from you.

The .Iiof file extension

The .Iiof file extension is a special file extension that cannot be recognized by any program. Your attempts to open the .Iiof file extension with the software you have will simply result in an error message since the Iiof files cannot be accessed without a decryption key.

The good news is that Iiof is Ransomware that can be removed from your system. For this purpose, we created a guide with removal instructions that you can use. However, although you can successfully remove the virus, this does not mean that your files will be fully restored. You may need some additional help with that, including using your personal backups or extracting files from the system. In all cases, we recommend that you never place your trust in the greedy hackers who are unscrupulous enough to infect your PC with Ransomware and then ask you to pay them to recover your files. Avoid giving them your money as much as possible and go to talk to a specialist who knows what to do with Iiof, search for help online, use removal guides like the one below or even invest in reliable security software that can help you deal with the infection. Do not respond to the demands of the criminals as this can only encourage them to keep blackmailing you and other web users.


Danger LevelHigh (Ransomware is by far the worst threat you can encounter)
Data Recovery ToolNot Available
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Remove Iiof Ransomware

We suggest that you bookmark this page in your browser’s Favorites so that you can keep it and use it until you complete all the steps from the ransomware removal guide.

Next, you should restart the computer that has been infected with the Iiof ransomware in Safe Mode (see this link for how to do this). Safe Mode will make sure that only the most basic programs and processes are running on your computer. In this way, you should be able to find and stop the Iiof-related processes more quickly.

After you restart the system as explained above, click the Start menu and type “msconfig” into the search field. Then press Enter. You will see System Configuration on the screen after you do this. Check the list of items that start up when you start your computer to see if any of them are linked to the malware by going to the Startup tab.

If there are entries on your computer that have Unknown Manufacturers, strange-looking names, or otherwise can’t be linked to any legitimate programs that you normally run on your computer, you need to research them online. If you find enough reliable information that they are dangerous, the best thing to do is check off the relevant box for them in order to disable them.


In the next step, look for malicious processes that are running on the computer. This can be done in the Task Manager window that shows up when you press CTRL + SHIFT + ESC. In it, click the Processes Tab to see if there are any suspicious processes running in the background. Look at the CPU and Memory Use columns and by looking at their names.

Right-click on any process that looks dangerous and choose Open File Location from the menu that pops up.

After that, you can use the virus scanner below to check the files in your File Location folder for malware.

Each file will be scanned with up to 64 antivirus programs to ensure maximum accuracy
This scanner is free and will always remain free for our website's users.
This file is not matched with any known malware in the database. You can either do a full real-time scan of the file or skip it to upload a new file. Doing a full scan with 64 antivirus programs can take up to 3-4 minutes per file.
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Each file will be scanned with up to 64 antivirus programs to ensure maximum accuracy
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    End the process whose files were found to be harmful by the scanner. Then, remove those files and their directories from the computer.

    Using the Windows Key and R key on the keyboard, start a Run command window. Then, copy the following line:

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

    After you copy the line, click OK. Find Localhost in the text of the Hosts file that appears on the screen. If your computer has been hacked, you’ll see a bunch of IP addresses at the bottom of your file under Localhost that look strange, just as seen in the sample image below.

    If there’s anything suspicious in your Host file, leave us a comment below this article. If we find something disturbing, we’ll let you know what to do and how to fix it.

    When a system is compromised, malicious entries can be added in the registry without the victim’s knowledge. This makes it hard to get rid of ransomware threats like Iiof.  If there are files in your computer’s registry that need to be removed, in the next paragraphs, you will learn how to search for them.

    First, type Regedit in the Windows search bar and hit Enter on the keyboard. The Registry Editor will appear on the screen. Use CTRL and F to search for entries that are related to the virus. Type the ransomware’s name into the Find box that pops up and click the Find Next button.

    Don’t delete files and directories that aren’t linked to Iiof because doing so could damage your operating system. It is better to use a professional removal tool, like the one on this page, to avoid any damage to your computer. This program is good at finding and removing malware from places like the registry that are very important to your computer.

    In the search bar at the bottom of the Start menu, type in each of the lines listed below and press Enter to open them one by one:

    1. %AppData%
    2. %LocalAppData%
    3. %ProgramData%
    4. %WinDir%
    5. %Temp%

    Look for files and folders with strange names that were added around the time of the ransomware attack in each location. If you think something should be removed, carefully research it or use a powerful scanner to help you decide on your action.

    When you go to Temp, select everything in that folder and then delete it. This will get rid of any temporary files that the ransomware has added on your computer.

    How to Decrypt Iiof files

    Ransomware viruses are notorious for making it hard to get your encrypted data back, so you might need to use a number of different methods to decrypt some of your information. One of the first things that you need to figure out, however, is what variant of ransomware has attacked you, and, based on that, you will have to decide on your available file-recovery alternatives. The quickest way to do that is by looking at the extensions of the files that have been encrypted.

    New Djvu ransomware

    STOP Djvu, the most recent variant of the Djvu ransomware strain, encrypts data by attaching the .Iiof suffix to the encoded files. So, if you’ve been attacked by this latest variant, check out the suffix of your files. The good news is that, at the time of this writing, it is possible to decrypt files that have been encrypted with an offline key. So, if you want to get your data back, you can check out the link below for a file-decrypting program that might be able to do that:

    Follow the link above and choose “Download” to get the STOPDjvu.exe decryptor.

    After the file has been downloaded, select “Run as Administrator” and then press the Yes button to start the app. You can start decrypting your data after you read the license agreement and a few short instructions. Please be aware that this tool may not be able to decrypt files that have been encrypted with unknown offline keys or online encryption.

    If you want to get rid of Iiof and other infections, it is recommended to use professional anti-virus software, like the one on this site. You need to remove the ransomware prior to attempting any data recovery methods. You can use the anti-virus software on this page or the free online virus scanner  for more help. It’s also okay to ask a question in the comments below.

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