Is Jstag.js/ a Virus?


What is Jstag.js/ “Virus”?

If you are reading this article, you may have experienced problems with getting rid of unwanted, browser redirects to suspiciously looking websites, aggressively appearing advertisements in the form of banners, colourful links, pop-ups or pop-unders on your browser. No matter whether it is Chrome, Explorer, Firefox or other kind of a web browser. The news is you may have encountered Jstag.js/ It is classified as an Adware. The following information will give you an idea of what you are dealing with and some useful advice about how to avoid it and remove it from you machine.

Adware is software that displays advertisements on your computer or within the program itself. You are most likely to come across Adware when you download free software from websites that work with torrents; or by clicking on an advertising link on an already infected webpage. Just the fact that a program is referred to as Adware, though, does not make it in any way malicious in nature. Many people are mislead that Jstag.js/ is a virus, though it may have some of the same functions it doesn’t fall into the virus category.

In fact, there are many legitimate programs, including games, that may display pop-up, pop-under or banner ads on your computer screen. Most of these programs show such ads to generate further revenue for the developers or to promote other products that they may sell. What we can point out as an advantage of a legitimate Adware program is that you can sometimes download the software bundle for free. Instead of charging you for the given program, the developers may integrate a script in it to display advertisements within to cover the costs of development. That is actually how they are able to make the profit they could normally get from selling their now free software. Such legitimate versions of Adware programs will contain an End-User License Agreement that will explicitly state if and how advertisements will be shown.

When you uninstall Adware, the program may be completely removed and may stop displaying advertisement pop-ups, pop-unders or banners on your computer screen. On the other hand, there may be Adware programs that are considered Potentially Unwanted Programs (PUP). Such software products might show ads without your permission. Also, you may not be aware of the origin of your annoyance. Such Adware versions may be designed to make it hard for you to remove them in order to continue generating profit through their advertisements. When you install the main software that is bundled with them, the Adware programs will be installed as well and will start showing numerous kinds of advertisements on your computer screen.

However, it is necessary to focus on the fact that Adware is nothing like a virus or malware. It has gained such a bad reputation because of the shady methods of distribution the developers use when it comes to Adware. The fact that Adware comes in bundles with other software and the user may not be aware of its existence and installation is what makes its image so controversial.

Jstag.js/ and its features

Jstag.js/ has been classified as Adware. Typically, it may integrate into a user’s system through a software bundle or a website, which contains hyperlinks to the origin of the advertisement software. This Adware product is likely to start tracking your surfing history, whatever browser you are using, and also to begin generating ads based on your most common searches.

For example, you download a bundle that contains Jstag.js/ At the same time you are searching for the cheapest flight ticket from Boston to Berlin. The Jstag.js/ will notice your preferences and soon enough you will find yourself showered with a great number of advertisements promoting flight deals about your destination. Maybe sometimes such ads come in handy. However, in most cases, people just don’t have the patience to endure such an aggressive marketing campaign. Briefly, this is the way Jstag.js/ works- it is an example of a prime Adware program.

If you get easily irritated by Adware, you can always follow the advice below in order to remove it safely or avoid it efficiently from this moment on. First of all, make sure that you have installed a pop-up blocker. If you have such a tool, it may help you avoid Jstag.js/ and other Adware. Second of all, check whether your Firewall is turned on and that it is functional. If it is your case, the next possible step is to update your anti-malware program and operating system regularly. This is more than enough when it comes to the most common Adware products. The most important step, though, is to be really cautious about what you download and install on your machine. Sometimes it is better to invest in a paid software than to deal with technical issues later. Always read the End-User License Agreements and never let any newly installed programs to make any unsanctioned changes to your system.

Jstag.js/ Removal Instructions

Many types of malware will restrict your access to their core files. It is highly recommended that you reboot your PC in safe mode before attempting to use this guide.

  • To enable Safe Mode reboot you PC, then hit F8 repeatedly. When the corresponding menu opens please select Safe Mode with Networking.

WARNING! If you are using Windows 8,0 or later and/or your operating system is installed on a fast SSD drive this may fail to work. In this case click here to see how to start your PC in Safe Mode.

#1: Uninstall the malicious program from your control panel

Enter control panel to look for any suspicious programs, which may have installed on your PC. To do that:

  1. Navigate to your Desktop
  2. Press simultaneously the Win button together with the R button (Win+R)
  3. In the Run window that just opened type appwiz.cpl

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  1. Go through the list of programs and find Jstag.js/ or anything else that may seem suspicious. Right-click on it and choose the uninstallation option

WARNING! Carefully read any confirmation messages that may be created in the process. Sometimes you may get offers to download more Adware applications and this can be linked to either the Yes or the No answer depending on the wording!

  • Optional:

Go through the list of programs again and check online for any potentially unwanted programs. We have an article that covers this awesome free software that makes sure that your computer is free from bloatware and programs that you don’t need.

#2: Remove Jstag.js/ From Chrome


Now we’ll remove the extensions that the malware has attached to your browser.

  1. Open your Google Chrome browser.
  2. Type chrome://extensions/  in the URL address bar and press Enter.
  3. Click on “Developer Mode” on the top right and look for the extension installed Jstag.js/ and anything that might be related to it. Copy their IDs (the string of letters), then remove them by clicking on the trash bin icon.

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  1. Type Regedit in the Windows Start Menu and press Enter. Go in : HKEY_LOCAL_MACHINE\SOFTWARE\Google\Chrome\Extensions and delete the entries corresponding to the suspicious IDs you recorded.

#3: Remove Jstag.js/ From Firefox

  1. Open Mozilla Firefox browser.
  2. Type “about:support” in the URL address bar and press Enter.
  3. Click on the “Refresh Firefox” button on the right and confirm.

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#4 Remove Jstag.js/ From Internet Explorer

  1. Open your Internet Explorer internet browser.
  2. Click on the Gear icon on the up right, then on manage add-ons.
  3. Go through the list disable any suspicious extensions.

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#5 Remove any leftover parasitic processes

From the task manager:

  1. Use Ctrl + Shift + Esc and open the Task manager, then click on the Processes
  2. Go through the list of processes and look for unknown or otherwise suspicious entries.
  3. If you see anything suspicious right click on the process and shoes Open File Location, then terminate the process and delete any files you find in the directory.

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WARNING! If the directory you open from this menu has no files inside of it it’s probably because the malware has hidden them. You need to reveal hidden files and folders in order to be able to see them. Click here if you don’t know how to do that.

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From the start menu:

  1. Press simultaneously the Win button together with the R button (Win+R)
  2. In the Run window that just opened type msconfig
  3. Click on the Startup tab.

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This menu controls which programs are loaded when windows starts after a reboot. Disable anything that seems suspicious. Optionally you can also disable any program that you don’t need and also has a high impact on your startup time.

Feel free to write to us in the comment section with any questions that you may have. Also if we have been helpful to you please share this article to help us reach more people like you.  

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