“Comuter Blocked!!” – this is what users who have opened the malicious “procleaner.exe” file see after infection with the latest screen locker virus which many refer to as Cuzimvirus. The malware aims to lock the screen of infected computers and hence cause panic in users and get them to pay a hefty ransom fee to unlock their blocked computers. In addition to the lockscreen the virus may also cause other damages to the encrypted computer, such as steal files, block the user from logging in with administrative privileges and other. Anyone who has had their screens locked by Cuzimvirus should be advised that this virus is removable and should not pay any form of ransom payoff to the cyber-criminals behind this malware. We advise reading this article if you are interested in removing Cuzimvirus completely and unlocking your computer.
SensnorsTechForum team is currently investigating this cyber-threat. We will update this article with more details about Cuzimvirus shortly.
|Short Description||The malware locks the screen of it’s victims until a ransom is paid.|
|Symptoms||The user may witness a red lockscreen with a message saying the computer is blocked.|
|Detection Tool||See If Your System Has Been Affected by malware.|
|Data Recovery Tool||Windows 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.|
How Does Cuzimvirus Cause an Infection
Cizimvirus Ransomware – Infection Process
When the user clicks on such a fake URL or opens the malcious file, the infection scenarios on his/her computer are the following:
Malicious web link may cause a redirect and a drive-by-download of malicious files.
A file may remotely connect to a shady host and download the payload of Cizimvirus.
The virus may directly begin to modify the Windows Registry entries and lock the screen.
After the infection is complete, Cizimvirus gets down right to business. The virus immediately locks the screen of the user PC, denying all access to it’s functions and the data in it. After this has completeted, Cizimvirus changes the lock screen to a red and black Screen Saver-like image which says the following:
At the moment it is not entirely clear what type of modifications Cizimvirus may have performed but researchers like Karste Hahn @struppigel report it to drop a “procleaner.exe” file in one of the key folders on Windows:
- %User’s Profile%
After this it is believed the following registry keys to be affected:
Remove Cizimvirus and Unlock Your Computer
In order to get rid of Cizimvirus, it is strongly recommended to follow our removal instructions below. They will make sure you get past the lockscreen so that you can hunt for the malicious encrypted files either manually or automatically. In case you lack professional experience in removing malware by hand, we advise you to turn to an advanced anti-malware software which according to researchers will make a heuristic scan and should be able to remove all of the related files of Cizimvirus and unlock your computer automatically as well as protect your computer from other threats.
- Guide 1: How to Remove Cuzimvirus from Windows.
- Guide 2: Get rid of Cuzimvirus from Mac OS X.
- Guide 3: Remove Cuzimvirus from Google Chrome.
- Guide 4: Erase Cuzimvirus from Mozilla Firefox.
- Guide 5: Uninstall Cuzimvirus from Microsoft Edge.
- Guide 6: Remove Cuzimvirus from Safari.
- Guide 7: Eliminate Cuzimvirus from Internet Explorer.
How to Remove Cuzimvirus from Windows.
Step 1: Boot Your PC In Safe Mode to isolate and remove Cuzimvirus
Step 2: Uninstall Cuzimvirus 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 Cuzimvirus 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 Cuzimvirus there. This can happen by following the steps underneath:
Get rid of Cuzimvirus from Mac OS X.
Step 1: Uninstall Cuzimvirus 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:
- 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 Cuzimvirus 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:
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 malware from your Mac
When you are facing problems on your Mac as a result of unwanted scripts, programs and malware, 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.
Remove Cuzimvirus 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 Cuzimvirus 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 Cuzimvirus 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 Cuzimvirus 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 Cuzimvirus will be removed.
Eliminate Cuzimvirus 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.