Update July 2019! This article has been created in order to explain what exactly is the Updatechecker.exe process and how to remove this adware and miner Trojan completely from your PC.
A new silent Trojan horse which displays advertisements and uses a cryptocurrency miner has been detected by malware analysts. The malware, also known as Updatechecker.exe, because of the process it runs, pretending to be a Windows Update, has been reported to use the CPU and GPU resources on the infected PCs by it in order to obtain cryptocurrencies. In addition to this, the Updatechecker.exe also has modules, whose primary purpose is to display advertisements on the computer of the victim, that may introduce other risks on it as well. If you see the Updatechecker.exe or Taskhostw.exe processes running in the background of your computer, recommendations are to read the following article and learn how to remove Updatechecker.exe from your computer.
|Type||Miner Trojan and Adware|
|Short Description||Aims to run two processes, one of which displays advertisements and the other one mines for cryptocurrencies, like BitCoin or Monero.|
|Symptoms||Your computer may slow down, freeze at times and multiple different advertisements are also displayed.|
|Distribution Method||Spam Emails, Email Attachments, Executable files, Fake setups|
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|User Experience||Join Our Forum to Discuss Updatechecker.exe Miner.|
Updatechecker.exe Miner – How Did I Get It
The primary method via which your computer could have become infected with the Updatechecker Adware Miner is believed to be a fake setup or a program which you may have downloaded from the web, believing is legitimate. Such malware usually pretends to be:
- Setup of a driver.
- Installer of a free program or a game.
- Patch for game.
- Crack or other license activator.
- Key generator for activation.
In addition to via fake setups of programs, there is also the likelihood that you may have clicked on a malicious web link that may have been sent to you via e-mail or via chat service, like Messenger, Viber, etc.
Updatechecker Miner Trojan – Malicious Activity
Once this malware has been installed on your computer system, it drops the following files on it:
What is actually Update Checker (Updatechecker.exe)? The Updatechecker.exe is the main malicious file, which is also responsible for the advertisements displayed by the virus. After the file is ran, it launches the other process, called Taskhostw.exe, whose purpose is to connect your computer to a mining pool. Such mining pools are the primary places where computers join their efforts to mine for cryptocurrency tokens, like BitCoins or Monero. This procedure results in various different side effects, such as your computer slowing down significantly, due to over usage of your central processing unit (CPU) or graphics processor (GPU). The malware also keeps an active connection to a pool but credits all of the mined cryptocurrency tokens to the wallet of the cyber-criminals who have created it at the expense of using your PC’s resources.
Both of the files Taskhostw.exe and Updatechecker.exe aim to imitate legitimate Windows processes and both of them are dropped in the following directory:
In addition to mining for cryptocurrencies, this Trojan may perform a series of malicious activities on your PC, like:
- Log your keystrokes.
- Take screenshots from it.
- Make sure that you cannot access some administrative directories.
- Steal files directly from your PC.
- Obtain passwords and logins from your web browser.
Furthermore, since it is also adware, the Trojan may display series of advertisements on your computer system, which can lead you to various suspicious sites, like tech support scams, financial scamming ones and even malicious websites, that may infect your computer with malware. The advertisements displayed may come in different forms, such as:
- Banners replaced on the legitimate sites you have visited.
- Pop-ups that may appear with animations and sounds.
- Highlighted text pop-ups, hijacking legitimate web pages.
- Browser redirections.
Bitcoin miners and adware are not a new thing, even though the miners are a developing trend. However, this is the first time, where we actually have the chance to see adware in combination with a Trojan horse, containing a cryptocurrency miner – quite impressive and likely done by an experienced programmer. Removal of this malware is highly advisable because it can damage the components on your computer and steal important information from it. In addition to this, we also advise you to change all of your passwords from a safe device.
Remove Updatechecker.exe Miner Adware Trojan from Your PC
In order to remove Updatechecker.exe malware, we recommend that you follow the removal instructions underneath this article. They are divided into manual and automatic removal manuals and if manual removal is not something you are used to doing, experts advise downloading and installing advanced anti-malware software to automatically scan your computer and remove Updatechecker.exe Miner and adware. Such software will also ensure that your computer is protected against infections in the future as well.
- Guide 1: How to Remove Updatechecker.exe Miner from Windows.
- Guide 2: Get rid of Updatechecker.exe Miner from Mac OS X.
- Guide 3: Remove Updatechecker.exe Miner from Google Chrome.
- Guide 4: Erase Updatechecker.exe Miner from Mozilla Firefox.
- Guide 5: Uninstall Updatechecker.exe Miner from Microsoft Edge.
- Guide 6: Remove Updatechecker.exe Miner from Safari.
- Guide 7: Eliminate Updatechecker.exe Miner from Internet Explorer.
How to Remove Updatechecker.exe Miner from Windows.
Step 1: Boot Your PC In Safe Mode to isolate and remove Updatechecker.exe Miner
Step 2: Uninstall Updatechecker.exe Miner 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 Updatechecker.exe Miner 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 Updatechecker.exe Miner there. This can happen by following the steps underneath:
Get rid of Updatechecker.exe Miner from Mac OS X.
Step 1: Uninstall Updatechecker.exe Miner 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 Updatechecker.exe Miner 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 Updatechecker.exe Miner 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 Updatechecker.exe Miner 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 Updatechecker.exe Miner 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 Updatechecker.exe Miner 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 Updatechecker.exe Miner will be removed.
Eliminate Updatechecker.exe Miner 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.