Unveiling Chrysanthemum Leucanthemum: Understanding and Combating This Browser Extension

What is Chrysanthemum Leucanthemum?

Chrysanthemum Leucanthemum is a potentially unwanted program that modifies the settings of web browsers. Every time you try to access your favorite social media or gaming website while this software is installed on your computer, your browser persistently reroutes you to an unexpected location. You might also discover that certain intrusive advertisements are persistently showing up on your screen or that your homepage has been altered without your consent.

Screenshot of the Chrysanthemum Leucanthemum appeared on your extensions
Chrysanthemum Leucanthemum appeared on your extensions and signed you out of all your Chrome profiles

How does the Chrysanthemum Leucanthemum virus work?

The Chrysanthemum Leucanthemum virus operates in a very clever manner. It usually enters your computer when you click on a link or downloading an app, at which point it begins altering your browser’s settings. It may change your homepage or tamper with the results of your searches, directing them through an odd search engine that returns a ton of incorrect or advertising-filled results. It all comes down to trying to take control away from you and profit from the advertisements you see or the websites you are compelled to visit.

Screenshot of the ChrysanthemumLeucanthemum browser extension with message'Installed by administrator'.
Received strange ChrysanthemumLeucanthemum browser extension, ‘Installed by administrator’, unable to remove.

What are the signs of an Chrysanthemum Leucanthemum infection?

The typical signs of an Chrysanthemum Leucanthemum infection include receiving aggressive advertisements, which indicates that consent was given for their delivery when Chrysanthemum Leucanthemum was installed by clicking on “Allow” or “Allow Notifications”, or a similar option. It is important to note that such pieces of software frequently use misleading strategies (such as clickbait, adult content, phony CAPTCHA verification tests, and software bundles) to trick users into installing them and turning on their notifications.

How harmful the Chrysanthemum Leucanthemum Pop-ups can be?

Chrysanthemum Leucanthemum is just one of the many browser hijackers that we have examined thus far. Its Chrysanthemum Leucanthemum pop-ups show browser notifications that may promote harmful and misleading content. Though legitimate goods and services might be found through these advertisements, keep in mind that they are almost certainly being advertised by con artists who take advantage of affiliate programs to get unauthorized commissions.

How to remove Chrysanthemum Leucanthemum on Chrome?

The first step in removing Chrysanthemum Leucanthemum from Chrome (or any other browser) is to make sure that there aren’t any odd new toolbars or extensions that you added by accident and use the delete option to immediately remove them if there are. You can find these and remove anything that seems dubious or potentially unwanted by going to the Extensions screen in Chrome’s settings. You can also use the instructions in our guide below for additional steps.

How to prevent ChrysanthemumLeucanthemum to came back?

To stop ChrysanthemumLeucanthemum extension to came back and signed you out of all your Chrome profiles or other hijackers, like Chromstera, iStart Search Bar or Webvalid.co.in, you do not want to visit, you first need to be careful about what you download or what you click. Aggressive advertisements should not appear all over your screen if your browser is up-to-date, and your pop-up blocker is activated. Of course, it is always a good idea to use popular antivirus software which can identify and immediately remove these extensions and hijackers before they take over the browser. But it is also a good idea to be careful when clicking on links received by email or message if they contain an awkward chain link or the senders are unknown.

NameChrysanthemum Leucanthemum
TypeBrowser Hijacker
Detection Tool

Remove Chrysanthemum Leucanthemum Virus

 To try and remove Chrysanthemum Leucanthemum quickly you can try this:

  1. Go to your browser’s settings and select More Tools (or Add-ons, depending on your browser).
  2. Then click on the Extensions tab.
  3. Look for the Chrysanthemum Leucanthemum extension (as well as any other unfamiliar ones).
  4. Remove Chrysanthemum Leucanthemum by clicking on the Trash Bin icon next to its name.
  5. Confirm and get rid of Chrysanthemum Leucanthemum and any other suspicious items.

If this does not work as described please follow our more detailed Chrysanthemum Leucanthemum removal guide below.

If you have a Windows virus, continue with the guide below.

If you have a Mac virus, please use our How to remove Ads on Mac guide.

If you have an Android virus, please use our Android Malware Removal guide.

If you have an iPhone virus, please use our iPhone Virus Removal guide.


Some of the steps may require you to exit the page. Bookmark it for later reference.
Next, Reboot in Safe Mode (use this guide if you don’t know how to do it).

Step1 Uninstall the Chrysanthemum Leucanthemum app and kill its processes

The first thing you must try to do is look for any sketchy installs on your computer and uninstall anything you think may come from Chrysanthemum Leucanthemum. After that, you’ll also need to get rid of any processes that may be related to the unwanted app by searching for them in the Task Manager.

Note that sometimes an app, especially a rogue one, may ask you to install something else or keep some of its data (such as settings files) on your PC – never agree to that when trying to delete a potentially rogue software. You need to make sure that everything is removed from your PC to get rid of the malware. Also, if you aren’t allowed to go through with the uninstallation, proceed with the guide, and try again after you’ve completed everything else.

  • Uninstalling the rogue app
  • Killing any rogue processes

Type Apps & Features in the Start Menu, open the first result, sort the list of apps by date, and look for suspicious recently installed entries.

Click on anything you think could be linked to Chrysanthemum Leucanthemum, then select uninstall, and follow the prompts to delete the app.

delete suspicious Chrysanthemum Leucanthemum apps

Press Ctrl + Shift + Esc, click More Details (if it’s not already clicked), and look for suspicious entries that may be linked to Chrysanthemum Leucanthemum.

If you come across a questionable process, right-click it, click Open File Location, scan the files with the free online malware scanner shown below, and then delete anything that gets flagged as a threat.

Each file will be scanned with up to 64 antivirus programs to ensure maximum accuracy
This scanner is free and will always remain free for our website's users.
This file is not matched with any known malware in the database. You can either do a full real-time scan of the file or skip it to upload a new file. Doing a full scan with 64 antivirus programs can take up to 3-4 minutes per file.
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Each file will be scanned with up to 64 antivirus programs to ensure maximum accuracy
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    Delete Chrysanthemum Leucanthemum files and quit its processes.

    After that, if the rogue process is still visible in the Task Manager, right-click it again and select End Process.

    Step2 Undo Chrysanthemum Leucanthemum changes made to different system settings

    It’s possible that Chrysanthemum Leucanthemum has affected various parts of your system, making changes to their settings. This can enable the malware to stay on the computer or automatically reinstall itself after you’ve seemingly deleted it. Therefore, you need to check the following elements by going to the Start Menu, searching for specific system elements that may have been affected, and pressing Enter to open them and see if anything has been changed there without your approval. Then you must undo any unwanted changes made to these settings in the way shown below:

    • DNS
    • Hosts
    • Startup
    • Task
      Scheduler
    • Services
    • Registry

    Type in Start Menu: View network connections

    Right-click on your primary network, go to Properties, and do this:

    Undo DNS changes made by Chrysanthemum Leucanthemum

    Type in Start Menu: C:\Windows\System32\drivers\etc\hosts

    Delete Chrysanthemum Leucanthemum IPs from Hosts

    Type in the Start Menu: Startup apps

    Disable Chrysanthemum Leucanthemum startup apps

    Type in the Start Menu: Task Scheduler

    Delete Chrysanthemum Leucanthemum scheduled tasks

    Type in the Start Menu: Services

    Disable Chrysanthemum Leucanthemum services

    Type in the Start Menu: Registry Editor

    Press Ctrl + F to open the search window

    Clear the Registry from Chrysanthemum Leucanthemum items

    Step3 Remove Chrysanthemum Leucanthemum from your browsers

    • Delete Chrysanthemum Leucanthemum from Chrome
    • Delete Chrysanthemum Leucanthemum from Firefox
    • Delete Chrysanthemum Leucanthemum from Edge
    1. Go to the Chrome menu > More tools > Extensions, and toggle off and Remove any unwanted extensions.
    2. Next, in the Chrome Menu, go to Settings > Privacy and security > Clear browsing data > Advanced. Tick everything except Passwords and click OK.
    3. Go to Privacy & Security > Site Settings > Notifications and delete any suspicious sites that are allowed to send you notifications. Do the same in Site Settings > Pop-ups and redirects.
    4. Go to Appearance and if there’s a suspicious URL in the Custom web address field, delete it.
    1. irefox menu, go to Add-ons and themes > Extensions, toggle off any questionable extensions, click their three-dots menu, and click Remove.
    2. Open Settings from the Firefox menu, go to Privacy & Security > Clear Data, and click Clear.
    3. Scroll down to Permissions, click Settings on each permission, and delete from it any questionable sites.
    4. Go to the Home tab, see if there’s a suspicious URL in the Homepage and new windows field, and delete it.
    1. Open the browser menu, go to Extensions, click Manage Extensions, and Disable and Remove any rogue items.
    2. From the browser menu, click Settings > Privacy, searches, and services > Choose what to clear, check all boxes except Passwords, and click Clear now.
    3. Go to the Cookies and site permissions tab, check each type of permission for permitted rogue sites, and delete them.
    4. Open the Start, home, and new tabs section, and if there’s a rogue URL under Home button, delete it.


    About the author

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    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.

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