KuaiZip “Virus”

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This page aims to help you uninstall KuaiZip. These KuaiZip uninstall instructions work for every version of Windows.

How to stop the KuaiZip ads? We have recently received many requests to help users deal with the intrusive messages generated by this program and in this article, we decided to give you some detailed help on that. In case you feel invaded by ads and pop-ups on your screen, you should know that the probable source of this disturbance is an ad-generating script that comes along with the KuaiZip program. Luckily, you have found the right place to deal with this issue and successfully remove all ad related files from your system. In the next lines, you will learn exactly how to do that, as well as why KuaiZip is categorized as a potentially unwanted program (PUP) and how it may affect your system.

KuaiZip Virus


KuaiZip – what is this program?

Serving as a file compression tool, KuaiZip is a well-known Chinese archive application that is available for download on its official website as well as several freeware platforms, file sharing sites, third party toolbars and software bundles. This program is advertised as a powerful tool, that helps users compress and decompress different types of files with great speed, high compatibility, intelligent extraction and a pack of other handful capabilities that all come for free. However, the free use of all these functionalities comes with annoying adware activity that may bring some disturbance to the people who are using the program.

How it gets installed on your PC?

No matter where you download the installer from – be it directly from the website, a software bundle, or a torrent – the only way you can get KuaiZip installed on your PC is when you run the setup and give your user’s agreement. If this PUP is bundled inside the package of another program, however, you may not really see it unless you click the advanced/custom installation option. If you proceed directly with the “recommended” option, you should know that KuaiZip will get installed along without a further notice. Many PUPs are bundled inside other programs and installed this way, that’s why it is a good idea to always go for the advanced settings when it comes to installing new programs on your computer. Thus you will always have control on what you are getting inside your PC.

What are the symptoms?

Users may experience a constant flow of undesired ads, banners, blinking messages and links, as well as some changes in their browser settings that may result in constant page redirects, new tabs opening and the loading of various promotional web pages. All sorts of third-party sponsored links may come out any time a user decides to start browsing the web. The displayed Ads may contain a small text such as “Ads by KuaiZip.com”, “Powered by KuaiZip.com” or “Brought to you by KuaiZip.com” -an indicator as to which program they are generated by. Such activities are usually considered as undesired and may interrupt your normal browsing, therefore, programs like KuaiZip are commonly classified as Potentially Unwanted Programs (PUPs).

What are the risks?

Contrary to what many of our readers are led to believe KuaiZip is not a virus. In general, PUPs are not considered as serious online threats like viruses, Trojans or Ransomware. In most cases, they are legally developed pieces of software made with the idea to provide some functionality to the users. Additionally, they may be programmed to generate web traffic and ad clicks for the partners and clients that are paying the developers for that. This is the case with KuaiZip and its add-on extension actually tries to display as many ads as possible and collect as many clicks as possible. Every single click brings income to the owners of the application. The program may even track down some browsing-related data such as your browsing history, your web searches and most visited pages, social shares, and location all in order to display relevant ads or redirect you to web pages you might be interested in.

Although there is no direct harm that a program of this type may bring to your system, there are still some unpredictable risks that may lead to a serious virus infection. For as long as KuaiZip operates in your system, you may be constantly exposed to numerous popping notifications and sponsored pages. And since malware would try to use any opportunity to infect users, it is not out of the question that some ads may eventually be used by malicious hackers as a backdoor for a virus, for example. Or worse, you may bump into a misleading link and get infected with a Ransomware unknowingly.

Having this in mind, it may be better to eliminate this hazardous possibility by completely removing the PUP from your system. Not only you will save yourself from the annoying ads permanently, but you will eliminate the potential vulnerabilities of your system. The detailed manual instructions in the removal guide below will surely help you do so. In case there are some leftovers you can’t detect, try using the advanced removal tool that will eliminate them completely.


Name KuaiZip
Type PUP
Detection Tool

KuaiZip Uninstall

Search Marquis is a high-profile hijacker – you might want to see if you’re not infected with it as well.

You can find the removal guide here.


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.


  • Hi Franz,
    you are welcome. These IPs are good. We Researched them and they turned out to be legit.

  • Hi, Admin.
    how bout this is my problem?
    is my IP not dangerous or not ?
    But before that. Thanks you very much for your guide ^^

    • Dear admin,
      Hallo Admin.
      Done I remove this is host.
      but after shut down this is pc kuaizip again.
      But i remember after i install and uninstall “Hide IP” or anything about IP like change about Proxy and waoalah this is virus come from.
      So sad T.T

        • Halo admin,
          I done clear this virus KUAZIP just install Loaris Trojan Remover / Trojan Killer scan full in “:C” admin, pointless if you scan with anti virus. This Kuazip only can see in registary, SysWOW, and in Roaming.
          I use that application but must careful use this is application.
          Btw, thanks you very much admin for your help ^^

          • Hi again Chris,
            it is true that you have to be cautious what type of applications you can use. Did you manage to complete the guide in Safe Mode? If you follow the the steps thay will show you how to clean up your registry. Keep us posted if you need further help 🙂

  • Hello,
    I did what you said to do in Step 3 and i got this…
    I’m gonna guess that I should remove all of it..
    Am I right? hahaha
    And thanks for the guide. Really appreciate it 😉

    • Hi Bali,
      yes you are right. You should definitely remove these IPs. I am glad that you appreciate our guide i hope everything is well explained and you are not having any troubles completing it. If so keep us posted for further assistance 🙂

  • Hi, upon me removing the hosts addresses below, they prompt me saying I’m unable to save that in the folder, and are prompting me to save it in my documents folder. Despite saving there, the addresses are still there

    • Hi arush,
      this is the default text in the hosts.txt file. Do you have any IPs after these lines ?

  • Hi Abhay,
    did you execute all the steps in Safe Mode ? About the hosts file do you have Administrative rights ?

  • Hi Cheeese,
    If you have completed the guide you can be sure. But if you have only deleted files linked to KuaiZip, you should know that there might be hidden files in your system related to KuaiZip.

  • Hi Ayy Nanu,
    we don’t know what kind of programs you use. You can check the processes by Right Click on one of the process and then Click Open File Location. This way you will know if the process is legit or not. If the file is located in the right directory, so the process is the right one.

        • Well, first of all, did the unwanted program go away after you deleted them? If not, you should complete the rest of the guide (Step 4 and 5). If you are having any problem completing them, write to us in the comments and we will help you.

  • Hello, I followed the guide and it seemed to rid me of the majority of the issue. Thank you so much for that! However, when I scan my computer with adwcleaner, I keep getting a WMI result, no matter how many times I clean. It says:
    Path: rootsubscription
    Class: ActiveScriptEventConsumer
    Instance: ASEC

    Do you know what the issue is here?

    • Are you cleaning it while in Safe Mode? This is an important step when trying to remove an adware type of program.

    • You just delete them from the Hosts file and then save the changes to the file. However, not that you need to have Administrator rights to do that.

  • Did you follow the steps from our removal guide? You have probaly have installed the unwanted software without knowing it. Check your program installs from the Control Panel as instructed in Step 2. We also advise to go through with the other steps as well for maximum effect. If you do not know how to execute any of the instructions, write to us in the comments for further explanation.

  • Open your Start menu and copy-paste the following line inside the Start Menu search field: notepad %windir%/system32/Drivers/etc/hosts . After you do that, right-click on the first result and then select Run as Administrator. Now, you will be able to change the Hosts file and delete the unwanted IP’s.

  • Hello! I’ve been looking for suspicious files in task manager found a file running “winlogon.exe” running and when I try to locate its location nothing happens seems like it is hidden or something. Looking fwd for your help

    • Does a folder with nothing within it open when you seek the file location. Also, try making your hidden files and folders visible from the Folder Options and then try opening the File Location again. Additionally, did you check the hosts file as described in the guide?

  • Yes, type in the name of the undesirable software tat you are dealing with. Make sure to type it in the exact same way.

  • Is that everything below our IP is virus? Do i have to delete all of these? And, i just hv to delete d text and save it to remove it? Thankyou, sorry i rlly dont know about computer..

  • Those IP’s are certainly undesirable and should not be in your Hosts file. Remove them ASAP and remember to save the changes to the file.

  • Please help me, i have been trying to delete these using your steps but i cannot remove them, using windows 10. will really appreciate any help activate.adobe. com practivate.adobe. com ereg.adobe. com activate.wip3.adobe. com wip3.adobe. com 3dns-3.adobe. com 3dns-2.adobe. com adobe-dns.adobe. com adobe-dns-2.adobe. com adobe-dns-3.adobe. com ereg.wip3.adobe. com activate-sea.adobe. com wwis-dubc1-vip60.adobe. com activate-sjc0.adobe. com adobe.activate. com adobeereg. com http://www.adobeereg. com wwis-dubc1-vip60.adobe. com 125.252.224. 90 125.252.224. 91 hl2rcv.adobe. com mssplus.mcafee. com

    • Those indeed need to be removed. What happens when you delete them from the Hosts file and try to save the changes?

  • guys i found out that crsss.exe is a worm related to w32 .rbot.mx!!It has its own SMTP
    engine so i consider deleting it but still didnt find a way to remove it
    But u need to approve tht this file is infected bcoz this is a legitimate file but gets overwritten by the virus
    If Windows prompts you with a message box, it means the file is not infected, so do not delete it. If Windows doesn’t prompt you, then the file is infected…

    • As far as our research results suggest, the file you are referring to is indeed potentially harmful which is why you should probably remove it from your system. It is probably located in the Windows System folder under the name of CRSSS.EXE. It is also possible that there are Registry keys set by the shady piece of software.

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