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Danger level 3
Type: Potentially Unwanted Application


According to its website, You-boost is supposed to “Enhance your multimedia files download speed by utilizing YouBoost's ad supported media compression engine.” However, we advise that you remove it from your computer since it was classified as a potentially unwanted program. This means that it is not malicious, but it does not offer anything useful either, and after testing it we have found some undesirable activity that is worthy to discuss in greater detail. We have discovered that in addition to not performing its promoted function, this program installs a browser that is set to display commercial advertisements. So it seems that this program's developers use trickery to get people to install it, so if you have fallen victim to its deceitful promotional campaign, please follow the instructions at the end of this description to uninstall it in its entirety.

We say in its entirety because it leaves a lot of junk files that might remain active and connect to remote servers and download undesirable files. The leftover files include mscl.exe, chdl.zip, chdl.zip, bhnd.vbs, and slp.bat. These files can be found in C:\Windows\SysWOW64 and C:\Windows\System32. Apparently, these files are not supposed to go there, but since this program is not entirely legitimate, this comes as no surprise. In any case, these files have to be deleted. In addition to junk files, You-boost will leave one or two registry keys, but their location depends on the architecture of your computer’s operating system. If you are a user of the 64-bit version of Windows, then those registry keys will be located in HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\YouBoost Manager and HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\YouBoost Manager. However, if your OS is 32-bit, then it will only contain the latter registry key.

Furthermore, it will create a dedicated folder in The Program Files folder (C:\Program Files (x86)\You-Boost for 64-bit operating system or C:\Program Files for 32-bit operating system.) This folder will contain two executable files named ybint.exe and amon.exe which download a Portable Chromium browser. This version does not need to be installed to work, but it works just as well as an installed version. The reason for installing this browser is simple. It is set to launch randomly and render pop-up ads that may be unreliable since we cannot know their sources. Moreover, the Portable Chromium browser can even open YouTube videos to generate views and thus advertising revenue.

As you can see, this program is far from a download speed-increasing application that it claims to be. In fact, you will not see You-boost in its graphical form because it does not have a graphical user interface. Its two executable files run in the background and do their dirty work. So now that you know how this application works, let us tell you how it is distributed.

We want to inform you that you should stay away from its dedicated website You-boost(.)com since it is considered dangerous and some browsers may even block it. We have received information that people still stumble upon it, access it, and download this unwanted software. Nevertheless, most users get it via software bundles. Unfortunately, You-boost is currently being bundled with other programs and uploaded to shady software distributing websites intended for European and American audiences. Note that the bundles it comes with are configured in such a way that does not show additional software, so you have to opt out its installation by selecting advanced settings after you launch the installation setup.

However, if you have already installed this program and are searching for ways to get rid of, then we can help you. However, before we move onto that, let us recap what we have talked about. You-boost is a potentially unwanted program that tricks users into installing it from its website by claiming that it increases download speeds. Also, it is distributed using deceitful software bundles. Once it is installed, it will download a browser customized to display ads and videos to generate advertising revenue. So if you want to remove this unwanted program, follow the instructions provided below.

Uninstall via Control Panel

Windows XP

  1. Open the Start menu and open the Control Panel.
  2. Click Add or Remove Programs.
  3. Find the application.
  4. Click the Remove button.

Windows Vista & 7

  1. Open the Start menu and go to the Control Panel.
  2. Click Uninstall a program.
  3. Find the program.
  4. Click Uninstall.

Windows 8/8.1

  1. Press Windows Key+R.
  2. Type Control Panel in the box and click OK.
  3. Click Uninstall a program.
  4. Find the program and click Uninstall.

Windows 10

  1. Right-click on the Start menu.
  2. Select Control Panel and go to Uninstall a program.
  3. Find the PUP and right-click on it.
  4. Click Uninstall.

Delete the registry keys

  1. Press the Windows+R keys to go to Run.
  2. Enter regedit and click OK.
  3. Then, find and Delete the following registry keys.
  • HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\YouBoost Manager
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\YouBoost Manager

Delete the junk files

  1. Press the Windows+E keys to open the Explorer window.
  2. Type C:\Windows\SysWOW64 and C:\Windows\System32 in the address bar.
  3. The, find and Delete the following files.
  • mscl.exe
  • chdl.zip
  • updbrw.vbs
  • bhnd.vbs
  • bhnd.vbs
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