Trojan.BrowserAssistant.Powershell is generic detection to identity a potentially unwanted program (PUP) that is infecting browser applications like Google Chrome, Mozilla Firefox, Safari, or Edge. The detection of Trojan.BrowserAssistant.Powershell implies that the suspicious program is installed and currently committing unusual behavior on the internet browser program. The threat can lead to several disturbances like excessive pop-up ads and persistent browser redirects that drive the internet program to a hacker’s malicious landing page.

Threat Behavior

The main idea of spreading Trojan.BrowserAssistant.Powershell was established in the objective of attackers to utilize infected browser program as source for online revenue. Other attack sequence may have different objective like browser monitoring or data tracking.

Browser program may get infected with Trojan.BrowserAssistant.Powershell if computer users are frequently visiting sites that are involved in software and media piracy. Those websites often pop-up an ad attempting to persuade web users into download a program that will eventually lead to Trojan.BrowserAssistant.Powershell infection.

As soon as the virus is executed, it attacks the target internet program and injects a malicious Java script code. From there on, web users are going to experience unusual event on the browser like aggressive pop-up advertisements and unrelenting browser redirects.


Installed security application may detect the following infected files:

C:\Users\{username}\AppData\Roaming\Browser Assistant\node_modules\@cliqz-oss\firefox-client\test
C:\Users\{username}\AppData\Roaming\Browser Assistant\extension\js
C:\Users\{username}\AppData\Roaming\Browser Assistant\node_modules
C:\Users\{username}\AppData\Roaming\Browser Assistant\engine

How can you remove Trojan.BrowserAssistant.Powershell?

To totally remove Trojan.BrowserAssistant.Powershell from the computer and get rid of relevant adware, please execute the procedures as stated on this page. Make sure that you have completely scan the system with suggested malware removal tools and virus scanners.

Step 1 : Scan the computer with Sophos Antivirus

1. Download Sophos Virus Removal Tool from the link below. Save the file on your computer where you can easily access it.

2. Once the download completes, browse the location of the file. Double-click to run the program and begin the install process.

Screnshot of Sophos Installer

3. On first windows of installation wizard, click Next to continue. Then, it will display the program’s License Agreement. You need to Accept the terms in order to proceed. If Windows prompts for User Account Control, please click Yes to proceed.

Screenshot of Sophos EULA Page

4. On succeeding windows, click Next or Continue to carry on with the installation. After completing the installation process, Launch Sophos Virus Removal Tool.

5. Internet connection is required when running this scanner in order to download important updates. Make sure that everything is up-to-date to effectively remove adware like Trojan.BrowserAssistant.Powershell.

6. Click the  button to  carry out the Scan. This will check the system for presence of malicious objects, malware, and viruses. The tool reveals items that were found linked to Trojan.BrowserAssistant.Powershell and other suspicious entities. Be sure to remove all identified threats.

Screenshot of Sophos Virus Scan

Step 2 : Run AdwCleaner to totally remove Trojan.BrowserAssistant.Powershell

1. Download the tool called AdwCleaner from the location stated below.

2. Once you have completed the download, please close all running programs on the computer.

3. Locate the file and double-click on adwcleaner.exe to start running the tool.


4. It searches for presence of harmful programs, plug-ins, add-ons, or any data that were found malicious and linked to Trojan.BrowserAssistant.Powershell. You may have to delete each detected item.

5. Once scan is done, the tool may need to reboot your computer to finalize the cleaning process.

6. After reboot, open AdwCleaner once more. Click on Uninstall to remove this program from your computer.

How to protect the computer?

The initial defense that comes to the mind of any computer users is to install an anti-virus or anti-malware program. This move is sensible and probably the most practical way to protect the computer against Trojan.BrowserAssistant.Powershell attack. Hence, keep in mind that having a security software do not give full guarantee of protection. The most part of the prevention still lies on being cautious of users and therefore we are providing the following information as guidelines to protect the computer from virus infection.

Avoid Malicious Websites

There are enormous numbers of websites that was made for the primary purpose of spreading Trojan.BrowserAssistant.Powershell. Normally, these sites are involved in integrating malicious pop-up and browser hijacker, that will eventually cause further virus infection. Avoid such kind of websites.

Delete Phishing Emails

The mass-mailing of computer viruses gives the attackers the luxury of spreading their malicious code in just one send off. This will arrive in the inbox as email that appears to be from a legitimate organization. So, if you receive an unexpected email with a link or an attached file, better delete it immediately.

Do Not Click a Suspicious Link

Links from social media, forums, and blog sites are sometimes being utilized by attackers to drive web users to a malicious page that contains malicious code. Therefore, do not just click on any link especially if it looks suspicious. Accidental access to the destination site may lead to Trojan.BrowserAssistant.Powershell infection.

Be Careful When Downloading Files

Cracked software, serial key generators, and several freeware are seen as another method that spreads the Trojan.BrowserAssistant.Powershell virus. Avoid acquiring these types of application and if there is a need to download a freeware or shareware, be sure to obtain it from the official website or trusted providers.

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