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Critical Chrome Update Scam

Parasite may reinstall itself multiple times if you don't delete its core files. We recommend downloading SpyHunter to scan for malicious programs installed with it. This may save you hours and cut down your time to about 15 minutes. 

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This page aims to help you remove  the Critical Chrome Update Scam “Virus”. Our removal instructions work for Chrome, Firefox and Internet Explorer, as well as every version of Windows.

Browser hijackers are certainly a nuisance and are considered to be among the most annoying and useless programs (from the regular user’s perspective) that you may ever come across online. But is there more to them than just what we see on the surface? Today we will be looking at a specific representative of this software category better known as Critical Chrome Update Scam “Virus” and if you are familiar with it – stick around it. We will tell you what lies beneath all the strange changes that it has most likely enforced on your Chrome, Firefox, Edge or other browser, such as the new homepage and/or new default search engine that keeps redirecting you to different unfamiliar webpages. What’s more, though, we will also show you the most effective method of dealing with Critical Chrome Update Scam “Virus” and all its annoying changes and that is removing it from your system. For that purpose we have prepared a detailed removal guide just below this article, but we do insist that you finish reading the article first, as it contains important information regarding Critical Chrome Update Scam “Virus” and other pieces of software like it.

What hides behind all the strange browser changes and what does this hijacker really want?

The purpose of the numerous ads that Critical Chrome Update Scam “Virus” tends to flood your browser with, including the many popups, popunders, banners, box messages, etc. is simple and boils down to making a profit. On the one hand, the vendors of all the endless products and services that get advertised, who make a profit by gaining more exposure for the things they’re selling, and therefore more customers. But on the other hand, the browser hijacker developers are often equally invested in the whole advertising process, because they, too, benefit from it. Thanks to remuneration schemes such as the infamous Pay Per Click system or PPC for short, the developers can profit from the clicks made by users on the said online ads. It’s important to be aware of this fact, because it is what dictates the hidden behavior of programs like Critical Chrome Update Scam “Virus”. Let us explain.

Critical Chrome Update Scam “Virus” Removal

If you are a Windows user, continue with the guide below.

If you are a Mac user, please use our How to remove Ads on Mac guide.

If you are an Android user, please use our Android Malware Removal guide.


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).



We get asked this a lot, so we are putting it here: Removing parasite manually may take hours and damage your system in the process. We recommend downloading SpyHunter to see if it can detect parasite files for you.

Press CTRL + SHIFT + ESC at the same time and go to the Processes Tab (the “Details” Tab on Win 8 and 10). Try to determine which processes are dangerous. 


Right click on each of them and select Open File Location. Then scan the files with our free online virus scanner:

Drag and Drop Files Here to Scan
Maximum file size: 128MB.

This scanner is free and will always remain free for our website's users. You can find its full-page version at:

Scan Results

Virus Scanner Result

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. 


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


You are now in the Control Panel. Look for suspicious entries. Uninstall it/them.

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


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


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:

hosts_opt (1)

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

Open the start menu and search for Network Connections (On Windows 10 you just write it after clicking the Windows button), press enter.

  1. Right-click on the Network Adapter you are using —> Properties —> Internet Protocol Version 4 (ICP/IP), click  Properties.
  2. The DNS line should be set to Obtain DNS server automatically. If it is not, set it yourself.
  3. Click on Advanced —> the DNS tab. Remove everything here (if there is something) —> OK.



  • After you complete this step, the threat will be gone from your browsers. Finish the next step as well or it may reappear on a system reboot.

Right click on the browser’s shortcut —> Properties.

NOTE: We are showing Google Chrome, but you can do this for Firefox and IE (or Edge).


Properties —–> Shortcut. In Target, remove everything after .exe.

ie9-10_512x512  Remove Critical Chrome Update Scam “Virus” from Internet Explorer:

Open IE, click  IE GEAR —–> Manage Add-ons.

pic 3

Find the threat —> Disable. Go to IE GEAR —–> Internet Options —> change the URL to whatever you use (if hijacked) —> Apply.

firefox-512 Remove Critical Chrome Update Scam “Virus” from Firefox:

Open Firefoxclick  mozilla menu  ——-> Add-ons —-> Extensions.

pic 6

Find the adware/malware —> Remove.
chrome-logo-transparent-backgroundRemove Critical Chrome Update Scam “Virus” from Chrome:

Close Chrome. Navigate to:

 C:/Users/!!!!USER NAME!!!!/AppData/Local/Google/Chrome/User Data. There is a Folder called “Default” inside:

Rename the Folder to Backup Default

Rename it to Backup Default. Restart Chrome.


To remove parasite on your own, you may have to meddle with system files and registries. If you were to do this, you need to be extremely careful, because you may damage your system.

If you want to avoid the risk, we recommend downloading SpyHunter
a professional malware removal tool.

More information on SpyHunter, steps to uninstallEULAThreat Assessment Criteria, and Privacy Policy.

Type Regedit in the windows search field and press Enter.

Inside, press CTRL and F together and type the threat’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!

In order to maximize their profit and increase the effectiveness of their advertising campaigns, developers often program hijackers and other similar software to access the browsing history of the affected users. They do this in order to extract information related to their latest searches, the type of content they like and share on social media, as well as the websites they tend to hang around most on. This allows the browser hijacker, be it Critical Chrome Update Scam “Virus” or another one, to determine the type of products and services it has in its arsenal that will have a higher chance of attracting each specific user’s attention. Then, taking this into consideration, the browser hijacker typically alters the generic or random ad distribution and coordinates it with the user’s estimated preferences. That way, it can increase the chance that its ads will get clicked, as you will be more inclined to interact with a certain ad if it has something to do with your hobbies or current interests, than if it were just some random one.

However, the problem with this practice is that it is undoubtedly a privacy violation and is most often frowned upon in the online community. In fact, this is partially why many security experts tend to categorize browser hijackers and other ad-distributing programs of the sort as potentially unwanted programs or PUPs. But if that isn’t enough for you, there’s another factor worthy of your consideration that further contributes to this categorization.

We’re talking about the possibility of programs like Critical Chrome Update Scam “Virus” exposing you to different online viruses, such as ransomware, spyware and Trojans. This is not to say that Critical Chrome Update Scam “Virus” is a virus itself – that’s far from the truth. As a matter of fact, we would like to underline the opposite and emphasize that browser hijackers are not thought of as malicious, as they do not possess any virus characteristics. Nevertheless, they can put you and your system at risk of contracting a real virus, even if it’s unintentionally. The numerous ads can make it easier for you to bump into the so-called malvertisements, for example, which are ads that have been injected with malware. Therefore, we highly recommend abstaining from interacting with online ads of any type.


Name Critical Chrome Update
Type  Adware/Browser Hijacker
Danger Level Medium (nowhere near threats like Ransomware, but still a security risk)
Symptoms  New browser settings, such as a new homepage and a new default search engine.
Distribution Method Torrent sites, open-source download platforms, file-sharing platforms, etc.
Detection Tool

Keep in mind, SpyHunter’s malware detection tool is free. To remove the infection, you’ll need to purchase the full version. More information about SpyHunter and steps to uninstall.


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