Name | ExtTag.exe |
Type | Adware,PUP |
Short Description | ExtTag.exe may have been brought by a PUP. |
Symptoms | The display of Ads during browsing – pop-ups, ad-supported search results, modified site text. |
Distribution Method | Via bundling, unsafe browsing, fake software updates, etc. |
Detection tool | Download SpyHunter, to See If Your System Has Been Affected By ExtTag.exe |
In case you have seen a process in your Windows Task Manager, called Exttag.exe, there is a good chance that you may have adware on your computer. The executable is mostly connected with several unwanted programs, otherwise known as PUPs. The main which has been most detected and reported by researchers so far is believed to be PUP.Optional.Linkury.PrxySvrRS. Linkury is notorious for developing many unwanted apps that are not in fact viruses, but may lead to such, by displaying advertised content. Since the impact of this PUP is high, experts recommend its immediate removal from the PC.
How Did ExtTag.Exe Get in My PC?
There are several scenarios by which this PUP could have gotten in. However, the main one is called bundling. It involves free third-party applications that most likely may have included (in this case) any Linkury products as a part of their installation process. Most freeware may or may not prompt to add such applications as free extras on the user PC. This is done by third party software provider websites that have a database of software, and they provide it via their servers. Most people think such sites are legitimate and decide to download apps from there, and sometimes they get such adware on their PCs.
How Does ExtTag.Exe Work?
This is your typical adware program since it may perform the very same ad-injection tasks, similar to other products of its developers. Linkury has many toolbars and programs that are known to display ad-supported content and processes associated, such as Adware.Linkury.M, Linkury Smartbar or Quickshare, Srptm.exe.
Once it is on your system, the program may run the current .exe files:
→AgentMainService.exe
40ecsabw.dll
ExtTag.exe
Also, antivirus scans have reported the current objects in Program Data associated with ExtTag.exe on an affected PC:
→C:\ProgramData\ExtTag\ExtTag
C:\ProgramData\ExtTags
C:\ProgramData\ExtTag\4az5oxsr.dll
C:\ProgramData\ExtTag\jumcw1w3.dll
In Firefox:
→FF NewTab: C:\\ProgramData\\ExtTags\\ff.NT
FF Homepage: C:\\ProgramData\\ExtTags\\ff.HP
More to it than that, ExtTag.exe may associate with third-parties since such applications live to make profits to their developers via most likely pay-per-click schemes and affiliate arrangements. This is dangerous for the user since third-parties may conceal different risks from them:
- Infecting PC with malware(Viruses, Worms, Trojans, Ransomware Trojans)
- Conning the user, using various tactics to collect information or drain his funds(Surveys, Financial Info to claim trials, Fake tech support scams, etc.)
When it comes to making easy money, cyber criminals have become very smart and are continuously developing new tactics and methods to drain the average user’s both funds and information. Such info is either aggregated, sorted and sold to organizations or taken advantage of any other mean that will benefit their interests.
How to Remove ExtTag.Exe?
When it comes to threat removal, you must think of it as an octopus, one of which’s tentacles is linked to your computer. You should first cut the connection and then burn the thing. The same is with PUPs and malware. First, disconnect your PC from the web, just to be safe. Then it is recommended follow the step-by-step removal tutorial, provided below. After that, you should employ advanced malware protection program that will take care of any leftover objects after the manual deletion of ExtTag.exe such as cookies and some other files and folders.
Spy Hunter scanner will only detect the threat. If you want the threat to be automatically removed, you need to purchase the full version of the anti-malware tool.Find Out More About SpyHunter Anti-Malware Tool / How to Uninstall SpyHunter
- Guide 1: How to Remove ExtTag.exe from Windows.
- Guide 2: Get rid of ExtTag.exe from Mac OS X.
- Guide 3: Remove ExtTag.exe from Google Chrome.
- Guide 4: Erase ExtTag.exe from Mozilla Firefox.
- Guide 5: Uninstall ExtTag.exe from Microsoft Edge.
- Guide 6: Remove ExtTag.exe from Safari.
- Guide 7: Eliminate ExtTag.exe from Internet Explorer.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
How to Remove ExtTag.exe from Windows.
Step 1: Boot Your PC In Safe Mode to isolate and remove ExtTag.exe





Step 2: Uninstall ExtTag.exe 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. To do that:



Step 3: Clean any registries, created by ExtTag.exe on your computer.
The usually targeted registries of Windows machines are the following:
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
You can access them by opening the Windows registry editor and deleting any values, created by ExtTag.exe there. This can happen by following the steps underneath:



Before starting "Step 4", please boot back into Normal mode, in case you are currently in Safe Mode.
This will enable you to install and use SpyHunter 5 successfully.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Get rid of ExtTag.exe from Mac OS X.
Step 1: Uninstall ExtTag.exe 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 ExtTag.exe 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:
→ ~/Library/LaunchAgents
/Library/LaunchDaemons
Tip: ~ is there on purpose, because it leads to more LaunchAgents.
Step 2: Scan for and remove ExtTag.exe files from your Mac
When you are facing problems on your Mac as a result of unwanted scripts and programs such as ExtTag.exe, 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.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Remove ExtTag.exe 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.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Erase ExtTag.exe 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.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Uninstall ExtTag.exe 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.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Remove ExtTag.exe 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 ExtTag.exe will be removed.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Eliminate ExtTag.exe 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.