How to Remove Qoosu.exe and Win32/Hllw Infection

Does anyone know what Qoosu.exe is, why this process appears on my task manager without my permission? And what is the relationship with Win32/Hllw? Why these two infections have found on my system? Need help to remove them completely.

Have a Discussion of Qoosu.exe and Win32/Hllw Infection

Qoosu.exe is process that may easily use by some malware or malicious program to hit the compromised system. As soon as your computer has been attacked by some malware, this process may change its features and do a helper for the threats to damage the infected computers.

Win32/Hllw is a threat that has related with Trojan virus which may be able to make changes of the system without your consent. Once installed, it will try to change the host files and registry, and then add some new codes to the system in order to control the target computers. Thus, Win32/Hllw may have connected with a remote server which has many cyber criminals who are very profit-oriented and want to ruin your system and put it under their control. In such case, they can scan the important information on the affected system and steal users’ privacy data. After acquiring important financial information from system, they will use it onto market purpose in some day.

Both Qoosu.exe and Win32/Hllw has ability to drop more infections such as Ads by Volaro, AdvanceElite, Selectionlinks or other malware onto the infected computers, so if your system has been infected any of them, more dangerous viruses can be installed on your system.

Qoosu.exe and Win32/Hllw are terrible

1 once executed, it can make changes of the affected system.
2 this infection makes your system absolutely vulnerable to further infections
3 this Trojan obviously slow down your overall computer performance
4 victims may experience various erratic system behaviors.

Remove oosu.exe and Win32/Hllw with Simple and Effective Way


STEP 1 Uninstall any dubious PUP from computer:

For Windows 7/Vista: Click “Start” (“Windows Logo”)>”Control Panel“>”Uninstall a program“(under Program)>look for any dubious programs, select them and click Uninstall/Change.

For Windows 8: Right-click on the screen’s bottom-left corner> “Control Panel” >”Uninstall a program“(under Program)> Look for any dubious programs, select them and click Uninstall/Change.

STEP 2 Disable suspicious browser extension or plugin from all of browsers:


Click on Tools (IE 8)/gear icon (IE 9 and 10) at the upper-right corner of the Window, and the click on Manage add-ons.


Open Firefox, click on Add-ons.
Switch to the Extensions Tab. Click Remove to get rid of suspicious extension.


Go to wrench or 3 bar icon (next to the address bar), click on Tools and then click on Extensions.
Locate suspicious extension and then remove it by clicking the trashcan icon next to it.

STEP 3 Eliminate Qoosu.exe and Win32/Hllw by recommended removal software.



1; once the file is downloaded, double click on it. And click on the “Run” button when a window appears and asks if you want to run this file.

2; you can see the downloading process as shown below.

3; accept the SpyHunter license agreement and click “Next”.

4; Keep following with wizard during setup process. Click the “Finish” button to complete SpyHunter installation.

5; click on “Scan Computer Now” to scan your system.

6; remove all detected files.

STEP 4 Delete internet browsing; 

Delete internet browsing history including the history of the websites you have visited and the history of downloads you’ve performed to prevent you from getting malicious infections again.

Optional step: After removing Qoosu.exe and Win32/Hllw, you can use Perfect Uninstaller removed all unneeded applications, empty registry files on your PC. Remove programs that could not be removed by Add/Remove Programs make your system runs smoothly.

Perfect Uninstaller is a better and easier way for you to completely and safely uninstall any unneeded or corrupt application that standard Windows Add/Remove applet can't remove. If your are trouble with uninstalling unwanted application software in your computer and seeking for a perfect solution. You can click this link to download Perfect Uninstaller.

Feartures And Benefits of Perfect Uninstaller

• Easily and completely uninstall programs
• Completely clean the empty / corrupted registry entries
• Forcibly uninstall any corrupted programs
• Forcibly display and uninstall hidden programs
• Much faster than the Add/Remove applet.
• Easy to use with friendly user interface.
• System Manager.
• Operating System: Windows 95/98/ME/NT/2000/2003/XP/ Vista32/ Vista64

How to download and install Perfect Uninstaller on PC. 

Step 1: Click below icon to download Perfect Uninstaller


Step 2: To install the software just double click the PerfectUninstaller_Setup.exe file.

Step 3: Select "Run" to download and install Perfect Uninstaller. (If you prefer you may save the Perfect Uninstaller setup file (PerfectUninstaller_Setup.exe) to your computer and install the software later by clicking on the 'Save' button.)

Step 4: The next screen will ask for a "Destination Folder".

Step 5: Once the file has downloaded, give permission for the Setup Wizard to launch by clicking the "Next"button. Continue following the Setup Wizard to complete the Perfect Uninstaller installation process by click "Finish.".

After installation, you can follow the steps below to uninstall unwanted programs:

1: Right click the folder to select “Force Uninstall”.

2: Perfect Uninstaller will run as below, click “Next” to proceed.

3: Perfect Uninstaller is scanning your PC for associated entries. Click “Next” to remove them.

4: Follow the on-screen steps to finish the uninstall process.

All in all:

Qoosu.exe and Win32/Hllw have connected with malware that can modify your system settings in the background. It will display annoying activities while you are searching online, to make sure you have a good experience on your computer, you have to remove it with reliable removal here.

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