Do you see inaccessible .iiss files on your PC? If yes, we are sorry for this issue. Your computer and data have been compromised by ransomware. Keep reading to find out more details about the nasty Iiss virus as well as how to get rid of it.
What is Iiss Virus?
Iiss is called to a ransomware infection that causes damage to computer operating systems and personal data. The malicious software has been released in active campaigns against users worldwide. The virus has been reported by security researchers to be a strain of the infamous STOP ransomware. It appears to be yet another variant that aims to encode files that are likely to store valuable personal information. Its name comes from the malicious extension .iiss that the virus appends to every file it locks.
How to Recognize Iiss Ransomware Virus?
Iiss ransomware virus becomes visible to its victims after the end of the attack. At first, it tricks people into running it on their machines. Then it performs a long sequence of malicious activities that cause damage to both the computer operating system and data stored on it. The ransomware corrupts the settings of essential system components like those of the Registry Editor. During the attack, it activates a special module to encode target files with the strong AES cipher. The most vivid trait of this ransomware infection is the extension .iiss that appears appended to the name of all encrypted files. If you see a file renamed with this extension it means that you cannot open or use the file until a special decryption tool restores its code.
How to Remove .iiss File Extension?
The .iiss file extension indicates that the file that contains it in its name is locked by the new STOP/Djvu ransomware. Unfortunately, files that store important personal information are likely to be encrypted. This includes documents, banking details, audio and video files, images, photos, and even archives. The sad news is that the removal of the .iiss extension won’t recover files. They need to be decrypted by a reliable decryption tool. One way to get such a tool is to act as requested by hackers. Their demands can be found in a ransom note file called _readme.txt. The information in this file reveals that hackers expect victims to contact them at a given email address. Another detail that becomes clear is that they require a ransom payment of $490 – $980 in cryptocurrency.
Iiss Virus Summary
|Short Description||The ransomware locks files on your computer system by encryption and demands a ransom to be paid for alleged file restoration.|
|Symptoms||The threat payload will initiate file encryption and append its extension to them making them unopenable. Ransom fee is demanded for payment.|
|Ransom Demanding Note||_readme.txt|
|Distribution Method||Spam Emails, Email Attachments|
See If Your System Has Been Affected by malware
Malware Removal Tool
|User Experience||Join Our Forum to Discuss Iiss.|
|Data Recovery Tool||Windows Data Recovery by Stellar
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.
Must Read Iiss Ransomware Information
This piece of malicious code is based on the code of a well-known ransomware called STOP/Djvu. In case of infection with this virus, it is obligatory to remove malicious files before using the PC again. Beware that reinstalling your computer system is not a step that guarantees the complete removal of the threat. In addition, it won’t recover locked data.
Iiss virus is being spread via different methods. The most probable one is malspam. Malspam is called to malicious spam email messages that contain suspicious links and file attachments. They are often disguised as reliable sources sent by prominent organizations. As soon as the user opens the file or click the link, Iiss ransomware initiates the attack and starts to drop malicious files on the computer.
The ransomware payload could be started by a website that is infected with the code or a free download/torrent file as well. Cheats for games, hacks, and cracks, fake software could also have malware inside.
Once executed on the system, the ransomware is capable of evading detection and reaching the data encryption stage. During this stage, it encrypts your data by modifying its code. Since code modifications are realized with the help of the AES cipher algorithm, .iiss files appear as if they are broken soon after the virus encrypts them.
Afterward, the ransomware places a ransom message inside folders with encrypted data. This note is named _readme.txt. It has instructions that urge victims to send money to threat creators. It claims that upon payment confirmation your data will get restored. However, no guarantee for this. You cannot be sure that you will get your files after paying.
The virus will present you with the following text message:
Don’t worry, you can return all your files!
All your files like photos, 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:
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:
Reserve e-mail address to contact us:
Your personal ID:
We beg you to discard all nasty statements. They aim to provoke you and make you act as requested. Yes, it is true that the newest STOP ransomware strains are hard to decrypt by security experts due to some changes in the code. But don’t forget that they keep investigating the code of this ransomware in order to find flaws that will enable them to create a free decryption tool.
So back up your .iiss files and wait until they come up with a solution. We at Sensorstechforum.com have never considered a ransom payment as an effective solution. An amount of $490 – $980 will only stimulate hackers to continue spreading malicious software that harasses online users. If you want to try to restore your files, you could check the alternative solutions provided in our guide. Beware that none of them provides a 100% guarantee.
First, you should remove Iiss virus along with all associated malicious files and objects. Otherwise, the ransomware will repeatedly encrypt files on the compromised computer.
How Can I Remove Iiss Virus?
In case your computer is infected with this malware, you should know that it takes experience in removing malware manually. You should be extremely careful if you decide to try and remove a threat such as this one, for the first time, manually. You should remove this ransomware and follow the step-by-step instructions guide provided down here.
- Guide 1: How to Remove Iiss from Windows.
- Guide 2: Get rid of Iiss on Mac OS X.
- Guide 3: Remove Iiss in Google Chrome.
- Guide 4: Erase Iiss from Mozilla Firefox.
- Guide 5: Uninstall Iiss from Microsoft Edge.
- Guide 6: Remove Iiss from Safari.
- Guide 7: Eliminate Iiss from Internet Explorer.
- Guide 8: Disable Iiss Push Notifications in Your Browsers.
About the Iiss Research
The content we publish on SensorsTechForum.com, this Iiss how-to removal guide included, is the outcome of extensive research, hard work and our team’s devotion to help you remove the specific, adware-related problem, and restore your browser and computer system.
How did we conduct the research on Iiss?
Please note that our research is based on independent investigation. We are in contact with independent security researchers, thanks to which we receive daily updates on the latest malware, adware, and browser hijacker definitions.
Furthermore, the research behind the Iiss threat is backed with VirusTotal https://www.virustotal.com/gui/home/upload.
To better understand this online threat, please refer to the following articles which provide knowledgeable details.
1.Browser Redirect – What Is It?
2.Adware Is Malicious, and It Uses Advanced Techniques to Infect
3.The Thin Red Line Between Potentially Unwanted Programs and Malware
4.The Pay-Per-Install Affiliate Business – Making Millions out of Adware
5.Malicious Firefox Extensions Installed by 455,000 Users Blocked Updates
How to Remove Iiss from Windows.
Step 1: Boot Your PC In Safe Mode to isolate and remove Iiss
Step 2: Uninstall Iiss 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.
Step 3: Clean any registries, created by Iiss on your computer.
The usually targeted registries of Windows machines are the following:
You can access them by opening the Windows registry editor and deleting any values, created by Iiss 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.
Step 4: Scan for Iiss with SpyHunter Anti-Malware Tool
1. Click on the "Download" button to proceed to SpyHunter's download page.
2. After you have installed SpyHunter, wait for it to update automatically.
3. After the update process has finished, click on the 'Malware/PC Scan' tab. A new window will appear. Click on 'Start Scan'.
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.
Video Removal Guide for Iiss (Windows).
Get rid of Iiss from Mac OS X.
Step 1: Uninstall Iiss and remove related files and objects
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 Iiss:
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 Iiss. 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 Iiss. 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 Iiss 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:
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 Iiss. If you believe there is no such file, do not delete anything.
You can repeat the same procedure with the following other Library directories:
Tip: ~ is there on purpose, because it leads to more LaunchAgents.
Step 2: Scan for and remove Iiss files from your Mac
When you are facing problems on your Mac as a result of unwanted scripts and programs such as Iiss, the recommended way of eliminating the threat is by using an anti-malware program. SpyHunter for Mac offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.
Video Removal Guide for Iiss (Mac)
Remove Iiss from Google Chrome.
Step 1: Start Google Chrome and open the drop menu
Step 2:Move the cursor over "Tools" and then from the extended menu choose "Extensions"
Step 3: From the opened "Extensions" menu locate the unwanted extension and click on its "Remove" button.
Step 4: After the extension is removed, restart Google Chrome by closing it from the red "X" button at the top right corner and start it again.
Erase Iiss from Mozilla Firefox.
Step 1: Start Mozilla Firefox. Open the menu window
Step 2: Select the "Add-ons" icon from the menu.
Step 3: Select the unwanted extension and click "Remove"
Step 4: After the extension is removed, restart Mozilla Firefox by closing it from the red "X" button at the top right corner and start it again.
Uninstall Iiss from Microsoft Edge.
Step 1: Start Edge browser.
Step 2: Open the drop menu by clicking on the icon at the top right corner.
Step 3: From the drop menu select "Extensions".
Step 4: Choose the suspected malicious extension you want to remove and then click on the gear icon.
Step 5: Remove the malicious extension by scrolling down and then clicking on Uninstall.
Remove Iiss from Safari.
Step 1: Start the Safari app.
Step 2: After hovering your mouse cursor to the top of the screen, click on the Safari text to open its drop down menu.
Step 3: From the menu, click on "Preferences".
Step 4: After that, select the 'Extensions' Tab.
Step 5: Click once on the extension you want to remove.
Step 6: Click 'Uninstall'.
A pop-up window will appear asking for confirmation to uninstall the extension. Select 'Uninstall' again, and the Iiss will be removed.
Eliminate Iiss from Internet Explorer.
Step 1: Start Internet Explorer.
Step 2: Click on the gear icon labeled 'Tools' to open the drop menu and select 'Manage Add-ons'
Step 3: In the 'Manage Add-ons' window.
Step 4: Select the extension you want to remove and then click 'Disable'. A pop-up window will appear to inform you that you are about to disable the selected extension, and some more add-ons might be disabled as well. Leave all the boxes checked, and click 'Disable'.
Step 5: After the unwanted extension has been removed, restart Internet Explorer by closing it from the red 'X' button located at the top right corner and start it again.
Remove Push Notifications caused by Iiss from Your Browsers.
Turn Off Push Notifications from Google Chrome
To disable any Push Notices from Google Chrome browser, please follow the steps below:
Step 1: Go to Settings in Chrome.
Step 2: In Settings, select “Advanced Settings”:
Step 3: Click “Content Settings”:
Step 4: Open “Notifications”:
Step 5: Click the three dots and choose Block, Edit or Remove options:
Remove Push Notifications on Firefox
Step 1: Go to Firefox Options.
Step 2: Go to “Settings”, type “notifications” in the search bar and click "Settings":
Step 3: Click “Remove” on any site you wish notifications gone and click “Save Changes”
Stop Push Notifications on Opera
Step 1: In Opera, press ALT+P to go to Settings.
Step 2: In Setting search, type “Content” to go to Content Settings.
Step 3: Open Notifications:
Step 4: Do the same as you did with Google Chrome (explained below):
Eliminate Push Notifications on Safari
Step 1: Open Safari Preferences.
Step 2: Choose the domain from where you like push pop-ups gone and change to "Deny" from "Allow".
What is Iiss?
The Iiss threat is adware or browser redirect virus. It may slow your computer down siginficantly and display advertisements. The main idea is for your information to likely get stolen or more ads to appear on your device.
The creators of such unwanted apps work with pay-per-click schemes to get your computer to visit risky or different types of websites that may generate them funds. This is why they do not even care what types of websites show up on the ads. This makes their unwanted software indirectly risky for your OS.
What are the symptoms of Iiss?
There are several symptoms to look for when this particular threat and also unwanted apps in general are active:
Symptom #1: Your computer may become slow and has poor performance in general.
Symtpom #2: You have toolbars, add-ons or extensions on your web browsers that you don't remember adding.
Symptom #3: You see all types of ads, like ad-supported search results, pop-ups and redirects to randomly appear.
Symptom #4: You see installed apps on your Mac running automatically and you do not remember installing them.
Symptom #5: You see suspicious processes running in your Task Manager.
If you see one or more of those symptoms, then security experts reccomend that you check your computer for viruses.
What types of Unwanted Programs are there?
According to most malware researchers and cyber-security experts, the threats that can currently affect your Mac can be the following types:
- Rogue Antivirus programs.
- Browser hijackers.
- Fake optimizers.
What to do if I have a "virus" like Iiss?
Do not panic! You can easily get rid of most adware or unwanted program threats by firstly isolating them and then removing them from your browser and computer. One reccomended way to do that is by using a reputable malware removal software that can take care of the removal automatically for you. There are many anti-malware apps out there that you can choose from. SpyHunter is one of the reccomended anti-malware apps, that can scan your computer for free and detect any viruses, tracking cookies and unwanted adware apps and eliminate them quickly. This saves time when compared to doing the removal manually.
How to secure my passwords and other data from Iiss?
With few simple actions. First and foremost, it is imperative that you follow these steps:
Step 1: Find a safe computer and connect it to another network, not the one that your Mac was infected in.
Step 2: Change all of your passwords, starting from your e-mail passwords.
Step 3: Enable two-factor authentication for protection of your important accounts.
Step 4: Call your bank to change your credit card details (secret code, etc.) if you have saved your credit card for online shopping or have done online activiites with your card.
Step 5: Make sure to call your ISP (Internet provider or carrier) and ask them to change your IP address.
Step 6: Change your Wi-Fi password.
Step 7: (Optional): Make sure to scan all of the devices connected to your network for viruses and repeat these steps for them if they are affected.
Step 8: Install anti-malware software with real-time protection on every device you have.
Step 9: Try not to download software from sites you know nothing about and stay away from low-reputation websites in general.
If you follow these reccomendations, your network and all devices will become significantly more secure against any threats or information invasive software and be virus free and protected in the future too.
More tips you can find on our website, where you can also ask any questions and comment underneath the articles about your computer problems. We will try to respond as fast as possible.