Browser Assistant Virus

Browser Assistant

Browser Assistant is a new Trojan threat that can deliver other malware into the system without the users’ knowledge. Browser Assistant can introduce different advertisements and viruses to the computer, including worms, ransomware, and spyware.

Browser Assistant Virus

The Browser Assistant virus is a Trojan that allows the attacker to show advertisements in the affected browsers.

If you have Browser Assistant on your machine, and you’re concerned about your system’s safety, this is the page you need to be on. Browser Assistant is known as a Trojan Horse virus and this is one of the most harmful and stealthy forms of malware out there. Allowing this Trojan to stay in your system longer than it already has been can lead to unpredictable consequences for the computer’s safety. It is, therefore, important that you know how to find the virus and remove it as soon as possible. For this purpose, here we have created a thorough removal guide with step-by-step instructions and a professional removal tool. The steps, however, will require all of your attention, so be sure to take this very seriously. If you don’t feel confident enough to deal with a Trojan Horse like Browser Assistant manually, you can always rely on the Browser Assistant removal tool, which will complete the task in minutes. But please, read the following few paragraphs before you proceed to either of the removal methods, so you know exactly what you are facing.

There are numerous ways in which you can land a Trojan Horse infection. And what’s troubling is that most distribution methods rely on people’s lack of basic security habits. At the same time, if the web users think twice, apply their common sense, and are a bit careful, it is very easy to avoid a very large portion of the dreadful online infections. For example, one of the most common methods for spreading Trojans (as well as ransomware, and other viruses) is the spam emails. Therefore, when you receive an email from an unknown sender with an attachment, or a link in it, it is a good idea to avoid them. The reason is, it is highly likely that a threat like Browser Assistant may have been inserted there and you will let it in your system once you interact with the carrier. With this in mind, shady or illegal websites, and drive-by downloads should also be avoided. Such infections are also often spread via downloadable pirated content, and shareware.

But what can a Trojan do to your system?

To begin with, the hackers may be pursuing some valuable data, so the Trojan could be programmed to steal your information. The criminals behind it can gain access to very sensitive information through monitoring your keystrokes, or by directly accessing your hard drive’s storage. This may include information such as the numbers of your credit or debit card, different passwords, login credentials on different websites, including your online banking, etc. Spying is another very common use of Trojans. With their help, the crooks can hack into your webcam or your mic and monitor you, your home and your conversations without any visible symptoms!

Therefore, the correct and timely detection of the infection is extremely important. But this is just half of the task. Deleting the malware also has its specifics. In most cases, the manual removal may not be enough to locate and remove all the Trojan-associated files, which typically mimic some regular system files and processes. That’s why, if you are dealing with a Trojan for the first time, or you want to remove it effectively, and quickly, we suggest you scan your computer with reliable security software.


Name Browser Assistant
Type Trojan
Danger Level  High (Trojans are often used as a backdoor for Ransomware)
Symptoms  Visible symptoms may lack, therefore, to detect the Trojan you may need to scan the system with an antivirus program.
Distribution Method Shareware sites, torrents, fake ads, and spam messages are among the most common sources of Trojans.
Detection Tool

Remove Browser Assistant Virus

If you are looking for a way to remove Browser Assistant you can try this:

  1. Click on the Start button in the bottom left corner of your Windows OS.
  2. Go to Control Panel -> Programs and Features -> Uninstall a Program.
  3. Search for Browser Assistant and any other unfamiliar programs.
  4. Uninstall Browser Assistant as well as other suspicious programs.

Note that this might not get rid of Browser Assistant completely. For more detailed removal instructions follow the guide below.

If you have a Windows virus, continue with the guide below.

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

Browser Assistant Virus

Some of the steps will likely require you to exit the page. Bookmark it for later reference.

Reboot in Safe Mode (use this guide if you don’t know how to do it).

Browser Assistant Virus


Press CTRL + SHIFT + ESC at the same time and go to the Processes Tab. Try to determine which processes are dangerous. 

Browser Assistant Virus

Right click on each of them and select Open File Location.

After you open their folder, end the processes that are infected, then delete their folders. 

Note: If you are sure something is part of the infection – delete it, even if the scanner doesn’t flag it. No anti-virus program can detect all infections. 

Browser Assistant Virus

Hold together the Start Key and R. Type appwiz.cpl –> OK.

Browser Assistant Virus

You are now in the Control Panel. Look for suspicious entries. Uninstall it/them. If you see a screen like this when you click Uninstall, choose NO:

Browser Assistant Virus

Browser Assistant Virus

Type msconfig in the search field and hit enter. A window will pop-up:

Browser Assistant Virus

Startup —> Uncheck entries that have “Unknown” as Manufacturer or otherwise look suspicious.

  • Remember this step – if you have reason to believe a bigger threat (like ransomware) is on your PC, check everything here.

Hold the Start Key and R –  copy + paste the following and click OK:

notepad %windir%/system32/Drivers/etc/hosts

A new file will open. If you are hacked, there will be a bunch of other IPs connected to you at the bottom. Look at the image below:

Browser Assistant Virus

If there are suspicious IPs below “Localhost” – write to us in the comments.

Browser Assistant Virus

Type Regedit in the windows search field and press Enter.

Once inside, press CTRL and F together and type the virus’s Name. Right click and delete any entries you find with a similar name. If they don’t show up this way, go manually to these directories and delete/uninstall them:

  • HKEY_CURRENT_USER—-Software—–Random Directory. It could be any one of them – ask us if you can’t discern which ones are malicious.
    HKEY_CURRENT_USER—-Software—Microsoft—-Windows—CurrentVersion—Run– Random
    HKEY_CURRENT_USER—-Software—Microsoft—Internet Explorer—-Main—- Random

If the guide doesn’t help, download the anti-virus program we recommended or try our free online virus scanner. Also, you can always ask us in the comments for help!


About the author


Lidia Howler

Lidia is a web content creator with years of experience in the cyber-security sector. She helps readers with articles on malware removal and online security. Her strive for simplicity and well-researched information provides users with easy-to-follow It-related tips and step-by-step tutorials.


Leave a Comment