PoSetup Virus

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PoSetup can be hidden in all kinds of ways, and presented to you under the guise of seemingly harmless e-mail attachment, software installer, media file of different movies and songs, and so on. PoSetup is an example of a dangerous computer program that is categorized as a Trojan Horse, and if you think (or know) that this piece of malware is presently inside of your computer, be sure to read this whole article.


The article will provide you with some key information about the characteristics, distribution methods, and abilities of threats such as PoSetup, and the guide below it will share with you how to liberate your computer from the insidious Trojan.

Some examples showcasing the ability of the Trojan Horse infections

The following are only a small number of the many things a Trojan like PoSetup, Pinaview, Taskbarify may be capable of:

  • Starting new processes in the system, that force the machine to mine BitCoins, to participate in mass online attacks on different sites (DDoS attacks), to spread the Trojan (or other malware) on the Internet via automated spam e-mails, etc.
  • Inserting additional malicious programs in the infiltrated system – Ransomware, Rootkits, Worms, etc. Ransomware cryptoviruses are an especially common example of malware that spreads with the help of Trojans.
  • Conducting various forms of espionage – keylogging, taking screencaps of the user’s screen, and even hacking into the webcam, and using it for directly spying on the user.

How people usually land Trojans

Visiting sketchy sites, especially ones with adult content, or sites that distribute pirated software, greatly increases the risk of getting your system infected. Other common Trojan Horse distribution channels are the many types of spam that one can encounter (e-mails, social network messages, chat application messages, etc.). Misleading web ads, and clickbait buttons that pop-up in your browser may also potentially get you infected with a Trojan, which is why it’s a bad idea to keep any adware, or browser hijacker apps in your system. As far as PoSetup is concerned, you can find removal instructions for it in the guide below.


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Please follow all the steps below in order to remove PoSetup!

How to remove PoSetup Virus

  1. First, click the Start Menu on your Windows PC.
  2. Type Programs and Settings in the Start Menu, click the first item, and find PoSetup in the programs list that would show up.
  3. Select PoSetup from the list and click on Uninstall.
  4. Follow the steps in the removal wizard.

If you have a Mac virus, please use our How to remove Ads on Mac guide.

If you have an Android virus, please use our Android Malware Removal guide.

If you have an iPhone virus, please use our iPhone Virus Removal guide

What we suggest you do first is, check the list of programs that are presently installed on the infected device and uninstall any rogue software that you find there:

  • From the Start Menu, navigate to Control Panel ->>> Programs and Features ->>> Uninstall a Program.
  • Next, carefully search for unfamiliar programs or programs that have been installed recently and could be related to PoSetup.
  • If you find any of the programs suspicious then uninstall them if they turn out to be linked to PoSetup.
  • If a notification appears on your screen when you try to uninstall a specific questionable program prompting you to just alter it or repair it, make sure you choose NO and complete the steps from the removal wizard.

Remove PoSetup from Chrome

  1. Click on the three dots in the right upper corner
  2. Go to more tools
  3. Now select extensions
  4. Remove the PoSetup extension
  • Once you open Chrome, click on the three-dots icon to open the browser’s menu, go to More Tools/ More Options, and then to Extensions.
  • Again, find the items on that page that could be linked to XXX and/or that might be causing problems in the browser and delete them.
  • Afterwards, go to this folder: Computer > C: > Users > *Your User Account* > App Data > Local > Google > Chrome > User Data. In there, you will find a folder named Default – you should change its name to Backup Default and restart the PC.
  • Note that the App Data folder is normally hidden so you’d have to first make the hidden files and folders on your PC visible before you can access it.

How to get rid of PoSetup on FF/Edge/etc.

  1. Open the browser and select the menu icon.
  2. From the menu, click on the Add-ons button.
  3. Look for the PoSetup extension
  4. Get rid of PoSetup by removing it from extensions

If using Firefox:

  • Open Firefox
  • Select the three parallel lines menu and go to Add-ons.
  • Find the unwanted add-on and delete it from the browser – if there is more than one unwanted extension, remove all of them.
  • Go to the browser menu again, select Options, and then click on Home from the sidebar to the left.
  • Check the current addresses for the browser’s homepage and new-tab page and change them if they are currently set to address(es) you don’t know or trust.

If using MS Edge/IE:

  • Start Edge
  • Select the browser menu and go to Extensions.
  • Find and uninstall any Edge extensions that look undesirable and unwanted.
  • Select Settings from the browser menu and click on Appearance.
  • Check the new-tab page address of the browser and if it has been modified by “XXX” or another unwanted app, change it to an address that you’d want to be the browser’s new-tab page.

How to Delete PoSetup

  1. Open task manager
  2. Look for the PoSetup process
  3. Select it and click on End task
  4. Open the file location to delete PoSetup
  • Access the Task Manager by pressing together the Ctrl + Alt + Del keys and then selecting Task Manager.
  • Open Processes and there try to find a process with the name of the unwanted software. If you find it, select it with the right button of the mouse and click on the Open File Location option.
  • If you don’t see a “XXX” process in the Task Manager, look for another suspicious process with an unusual name. It is likely that the unwanted process would be using lots of RAM and CPU so pay attention to the number of resources each process is using.
  • Tip: If you think you have singled out the unwanted process but are not sure, it’s always a good idea to search for information about it on the Internet – this should give you a general idea if the process is a legitimate one from a regular program or from your OS or if it is indeed likely linked to the adware.
  • If you find another suspicious process, open its File Location too.
  • Once in the File Location folder for the suspicious process, start testing all of the files that are stored there by dragging them to our free online scanner available below.
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    • If the scanner finds malware in any of the files, return to the Processes tab in the Task Manager, select the suspected process, and then select the End Process option to quit it.
    • Go back to the folder where the files of that process are located and delete all of the files that you are allowed to delete. If all files get deleted normally, exit the folder and delete that folder too. If one or more of the files showed an error message when you tried to delete them, leave them for now and return to try to delete them again once you’ve completed the rest of the guide.

    How to Uninstall PoSetup

    1. Click on the home button
    2. Search for Startup Apps
    3. Look for PoSetup in there
    4. Uninstall PoSetup from Startup Apps by turning it off
    • Now you need to carefully search for and uninstall any PoSetup-related entries from the Registry. The easiest way to do this is to open the Registry Editor app (type Regedit in the windows search field and press Enter) and then open a Find dialog (CTRL+F key combination) where you have to type the name of the threat. 
    • Perform a search by clicking on the Find Next button and delete any detected results. Do this as many times as needed until no more results are found. 
    • After that, to ensure that there are no remaining entries lined to PoSetup in the Registry, go manually to the following directories and delete them:
    • HKEY_CURRENT_USER/Software/Random Directory. 
    • HKEY_CURRENT_USER/Software/Microsoft/Windows/CurrentVersion/Run/Random
    • HKEY_CURRENT_USER/Software/Microsoft/Internet Explorer/Main/Random

    What is a Trojan horse

    Unlike viruses, Trojan Horse threats are unable to replicate their files and spread within the system. However, this doesn’t take away from their malicious nature and abilities in the slightest. Usually, a threat like that would be designed in a way that would lure the user into interacting with the file that carries it, and willingly, albeit unknowingly, provide the Trojan with an Admin’s permission to make changes in the system. As soon as this permission is given to the malware, the computer can be considered as infected. Once the Admin permission is given, the malware would be able to do all sorts of things in the computer – it would have almost unlimited access to the data stored on the machine, and it would also be able to alter various system settings. Such operational freedom can be used for the completion of all kinds of shady tasks, which is why most Trojans are versatile malware tools, and can be utilized in a variety of cyber crimes.


    About the author


    Brandon Skies

    Brandon is a researcher and content creator in the fields of cyber-security and virtual privacy. Years of experience enable him to provide readers with important information and adequate solutions for the latest software and malware problems.

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