Heiistillstay.xyz Ads Virus. How to delete?

Written by Valdis Koks

Heiistillstay.xyz search hijacker is a kind of malware that infuses into your WIndows, and afterwards changes the search engine settings in your web browser to one which it desires. It also makes different unwanted modifications that might cause private data leakages, as well as to various other malware penetration. In this post, you will read the guide of Heiistillstay.xyz hijacker removal in various options, and also the solution of making your web browser like new.

icon hijacker - Do I really need it?

Heiistillstay.xyz Info

Name Heiistillstay.xyz extension
Type Browser hijacker1
Short Description The unwanted software that amends important browser settings without the user’s permission.
Symptoms The Heiistillstay.xyz hijacker replaces the browser parameters set by the users and replaces these settings with its own values.
Distribution Method Bundling with Freeware or Shareware, misleading pop-up ads produced by adware.
Detection Tool Inspect If Your System Has Been Affected by the Heiistillstay.xyz hijacker.

The ways of injection of Heiistillstay.xyz search hijackers are various. Most of them belong to the malware spreading with the malvertising or evil-minded web links of various websites. In some cases, your PC may be infected with this virus with the trojan-downloader, which is put into action to spread numerous other malware. There is a single form of this undesirable program – browser plugin that might build into any type of browser which supports the add-on setup2.

You will not likely setup this plugin by yourself, because their names are highly uncertain, and the functionality is really questionable. The “developers” of Heiistillstay.xyz hijacker normally state that it can save the .doc/.docx files from the web pages already to .pdf format, or to save the whole site on your disk. It is quite difficult to imagine if someone may be needed in such operations in 2023, when the Internet access is not time-limited as well as every computer is able to open the needed .docx files at Google Docs.

Nonetheless, besides their impracticality, they can simply be discovered in the Chrome Web Store. Obviously, virus experts sound the alarm concerning such spam into the legitimate source of browser extensions, asking for the Google reaction – removing these extensions from their place. But they are still not hurrying to take care of that protection issue.

Icon - Your PC hijacker

Is the Heiistillstay.xyz virus?

At the first sight, you can assume that these redirects are just bothersome, but not harmful. Because of this factor a number of people are just playing for time as opposed to getting rid of this malware, getting increasingly more chances of being infected with various other viruses, which are a lot more harmful than Heiistillstay.xyz is.

Besides the modified search engine or search engine result, you may likewise see various ads even on those websites that do not have any advertisements on it by default. And you can unintentionally misclick while shutting off the promotion, and start the downloading of an unrecognized file, which may be a virus, or a potentially undesirable application, and even ransomware – whatever the maintainers of this hijacker want.

If your browser is corrupted as a result of the Azorult trojan activity, the system can start malfunctioning quickly – this symptome is among the most usual in case of trojan injection.

Icon - remove Heiistillstay.xyz hijacker

How to remove Heiistillstay.xyz?

First, let me say several words about prevention the Heiistillstay.xyz malware injection. It is really simple to refer to the options of protecting your personal computer from such annoying things as browser hijackers, however, it is really simple to be caught on this bait even being an experienced user. As it was discussed above, this malware can hide after the attractive (at the first sight) promotion, or in packs with other adware you may get in dozens of ways. But despite the typical complexity of the infiltration approaches, it is really simple to stay away from the Heiistillstay.xyz hijacker appearance in your system:

  • Do not follow the dubious links;
  • Restrict the usage of pseudo-free software (one which is offered as free, but has an additional unwanted programs in its pack);
  • Leave the habit of clicking advertisements on the web. If you need to buy something, it is better to google it;
  • Avoid downloading the files from dubious sources, like forums or file sharing websites.

Preparation before removing Heiistillstay.xyz.

Before starting the actual uninstall procedure, we recommend that you do the following introductory milestones.

  • Ensure you have this manual tutorial always all set to use.
  • Do a backup of every one of your information, including the kept logins, passwords as well as other credentials. You should back up your info with a cloud backup service and make sure your files are protected from any sort of loss, also from the most extreme infections.
  • Wait till the long-lasting back-up process is over.

Step 1: Uninstall Heiistillstay.xyz and related software from Windows

Here is a technique in couple of very easy stages that should have the ability to uninstall most applications. Either you use Windows 10, 8, 7, Vista or XP, these milestones will work well. Moving the app or its folder to the Trash can be a very wrong idea. In case you do that, remnants of the app may remain, and that can cause the unstable performance of your system, malfunctions with the file type associations and other unpleasant behavior. The effective solution to get an app off your device is to remove it manually. To do that:

1. Keep holding the Windows Logo Button and “R” on your keyboard. A Pop-up window will soon arrive.

Windows keyboard R

2. In the field that appeared, type in “appwiz.cpl” -1  and choose OK – 2.

Run appwiz.cpl


3. This will open a window with all the apps available on the device. Choose the app that you want to get rid of, then choose “Uninstall

Follow the steps above and you will successfully get rid of most unwanted apps.

Step 2: Get rid of Heiistillstay.xyz from all your available browsers.

Mozilla FirefoxGoogle ChromeInternet ExplorerMicrosoft Edge

1. Launch Mozilla Firefox. Go to its menu window

2. Choose the “Add-ons” icon in the menu.

3. Find the unwanted extension and select “Remove

Mozilla Firefox Add-ons Remove

4. Upon deleting the extension, reload Mozilla Firefox, closing it with the help of a red “X” button in the upper right corner and start it again.

1. Launch Google Chrome and go to its drop menu

Google Chrome drop menu click

2. Click on “Tools” and then in the extended menu select “Extensions

Google Chrome Tools select Extensions

3. In the “Extensions” menu find the unwanted extension and apply the “Remove” button related to it.

Google Chrome Extensions Remove

4. As soon as the extension is deleted, reload Google Chrome by closing it by means of the red “X” button at the top right corner and launch it again.

1. Launch Internet Explorer

2. Click on the gear icon marked ‘Tools’ to open the drop menu and choose ‘Manage Add-ons’


3. In the “Manage Add-ons” window, locate the extension you want to delete and then click “Remove”. A pop-up window will come up to inform you that you are about to delete the selected extension, and some more add-ons might be disabled as well. Leave all the boxes checked, and choose “Remove”.

Internet Explorer extension removal

4. Once the unwanted extension is deleted, reload Internet Explorer by shutting it down from the red “X” button located at the top right corner and launch it again.

1. Launch Edge

2. Access the drop menu by clicking on the icon at the top right corner.

3. From the drop menu choose “Extensions”.

Microsoft Edge menu Extensions

4. Locate the suspected dangerous extension you want to delete and then click on the Remove button.

Microsoft Edge Extensions Remove

Step 3: Clean any registries that could be added by Heiistillstay.xyz on your device.

The usually attacked 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 going to the Windows registry editor and getting rid of any values added by Heiistillstay.xyz. Follow the steps below:

  1. Start the Run Window command once again, type “regedit” and click OK.Window command regedit
  2. As soon as you open it, you can freely go to the Run and RunOnce keys, whose locations are displayed above.Window command Run and RunOnce keys
  3. You can delete the value of the virus by right-clicking on it and deleting it.Window command regedit delete the value virus

Tip: To locate a virus-created value, you can right-click on it and select “Modify” to find which file it is set to run. If this is the malware file location, delete the value.

Step 4: Scan for Heiistillstay.xyz with Loaris Trojan Remover

1. Click on the “Download” button to proceed to Loaris Trojan Remover download.

It is recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by Trojan Remover. Click on the corresponding links to check License AgreementPrivacy Policy.

2. Click “Install” to start.

Loaris Trojan Remover Install

There were 4 scan types suggested:

  • Standard Scan.
  • Full Scan.
  • Custom Scan.
  • Removable Scan.


3. After the installed has finished, click on the ‘Scan’ tab. Click on ‘Full Scan’.

Loaris Trojan Remover Full Scan

4. Once the scanning is started, Loaris will initiate the thorough analysis of your device and may soon identify specific threats currently slowing down the performance of your system. Make sure to wait until the scanning is completed to let the software fully evaluate the safety of your workstation.

Loaris Trojan Remover - scan in process

5. After Loaris Trojan Remover 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 ‘Apply’ button. There were options to move the files to quarantine, ignore or delete them.

Loaris Trojan Remover - show viruses

If any threats have been removed, it is highly recommended to restart your PC.


  1. About browser hijackers on Wikipedia
  2. Possible danger of free browser extensions

About the author

Valdis Koks

Security engineer, reverse engineering and memory forensics

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