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Danger level 3
Type: Potentially Unwanted Application


Flowsprit is a program created by Shenzhen City Spencer Technology Co., Ltd. Our research team classifies it as a potentially unwanted program (PUP), and that is explained in detail further in this report. Unfortunately, this suspicious piece of software can be installed along with third-party malware, and that could be a huge problem. It does not look like an official installer was set up to represent this PUP, and so it is not surprising if it is spread by third-party software distributors. Although it is possible that the program came bundled with relatively harmless software, you cannot know this for sure unless you do some research. We advise employing a malware scanner that is up-to-date and can identify even the latest threats. Perform a full system scan using this tool, and you will learn very soon if you need to delete any serious threats. Hopefully, you find out that you only need to remove Flowsprit. Our research team has thoroughly examined this suspicious program, and all findings are represented in this report.

There are several reasons why Flowsprit is classified as a potentially unwanted program. First of all, it can slither into your operating system without your notice as its installer is silent. Needless to say, if you find a program whose presence is unauthorized, you should be very worried. Of course, some users do not even know that this program is active due to its clandestine entrance. Besides that, the PUP can monitor download upload traffic, and it might be capable of recording and transferring personal information. To top it off, Flowsprit can connect to the Internet without permission, and it can connect to remote servers. Few of them include http://service.99ruyi.net:8800/Report/ViewReport.aspx and http://install.yulezm.com:5670/Service/Install.aspx. Due to all of these reasons, this program is classified as a PUP that deserves immediate removal. Do you want to keep a program that could potentially leak private data and transfer information to unknown servers? We are sure that you do not. All in all, if you have discovered the PUP, you are already on the right track.

Are you interested in deleting Flowsprit manually? If you are, the first thing we have to warn you about is that you cannot get rid of this potentially unwanted program by uninstalling it. Although the uninstaller is represented via the “Uninstall or change a program” menu, quite a few leftovers would be left behind if you chose to execute it. The guide below shows how to remove Flowsprit manually, and you should go through all of the steps to see which components were left behind. Needless to say, you need to erase them as soon as possible. Hopefully, the elimination of the PUP will not cause any problems for you, but we cannot guarantee that it will be as easy for you to clean your operating system completely. As mentioned previously, quite a few suspicious programs might have been installed along with the PUP, and you cannot forget about that. In fact, your virtual security could depend on that.

Hopefully, you have performed a full system scan by now, and you know which programs you need to remove from your operating system. Although even the most dangerous and complex infections can be eliminated manually, you should consider very carefully if that is the best option for you. If you lack experience when it comes to the elimination of malware, you have to consider the alternative, which is using anti-malware software. If security software is already installed on your PC, you have to ask why Flowsprit was ignored by it. Maybe this software is outdated? Maybe it is not up to par? Whatever the case it is, you need a reliable anti-malware tool to ensure that your operating system is protected against all kinds of malware. Considering that ransomware, Trojans, adware, and other pieces of malware can hide behind any link, email, or installer, you should not hesitate to employ security software any longer. If you realize how important that is, we advise installing anti-malware software right away, so that you would have all malicious programs, including Flowsprit, deleted automatically.

Flowsprit Removal

  1. Tap keys Win+R on the keyboard to launch RUN.
  2. Enter regedit.exe to launch Registry Editor.
  3. Move to HKLM\SOFTWARE\Wow6432Node\ (or HKLM\Software\).
  4. Right-click and Delete the key named FlowBBase.
  5. Right-click and Delete the key named flowhlp in these paths:
    • HKLM\SYSTEM\CurrentControlSet\services\
    • HKLM\SYSTEM\ControlSet001\services\
    • HKLM\SYSTEM\ControlSet002\services\
  6. Right-click and Delete the key named LEGACY_FLOWHLP in these paths:
    • HKLM\SYSTEM\CurrentControlSet\Enum\Root\
    • HKLM\SYSTEM\ControlSet001\Enum\Root\
    • HKLM\SYSTEM\ControlSet002\Enum\Root\
  7. Tap keys Win+E to launch Explorer.
  8. Enter %WINDIR%\system32\drivers\ into the bar at the top.
  9. Right-click and Delete the file named flowhlp.dat.
  10. Enter %WINDIR%\SysWOW64\drivers\ into the bar at the top and repeat step 9.
  11. Enter %APPDATA%\Microsoft\Windows\Templates\ into the bar at the top.
  12. Right-click and Delete the folder named QUaNDIvxbfdWF.
  13. Enter %PROGRAMFILES(x86)% (or %PROGRAMFILES%) into the bar at the top.
  14. Right-click and Delete the folder named FlowSprit.
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