C9l.xyz Virus. Ads Removal Guide

Written by Valdis Koks

C9l.xyz search hijacker is a sort of malware that squeezes into your personal computer, and afterwards switches the browser search engine configurations in your web browser to one which it desires. It additionally makes some unpleasant changes that can provoke personal data leakages, in addition to other malware delivery. In this article, you will see the guide of C9l.xyz hijacker removal in several methods, and also the solution of making your web browser as good as new.

icon hijacker - Do I really need it?

C9l.xyz Info

Name C9l.xyz extension
Type Browser hijacker1
Short Description The unwanted software that amends important browser settings without the user’s permission.
Symptoms The C9l.xyz hijacker replaces the browser parameters set by the users and replaces these settings with its own values.
Distribution Method Bundling with Freeware or Shareware, misleading pop-up ads produced by adware.
Detection Tool Inspect If Your System Has Been Affected by the C9l.xyz hijacker.

The ways of injection of C9l.xyz search hijackers are numerous. Many of them belong to the malware dispersing via the malvertising or malevolent web links of different sites. Sometimes, your personal computer may be contaminated with this malware with the trojan-downloader, which is utilized to spread various other malware. There is a single kind of this unwanted program – web browser plugin that might build right into any kind of browser which supports the add-on installment2.

You will not likely setup this plugin on your own, since their names are highly uncertain, and the usefulness is extremely questionable. The “developers” of C9l.xyz hijacker generally mention that it can save the .doc/.docx files from the sites already to .pdf format, or to download the whole site on your disk. It is rather difficult to imagine if somebody can be needed in such functions in 2023, when the Web access is not time-limited and every computer has the ability to open the needed .docx documents at Google Docs.

Nonetheless, besides their impracticality, they may effortlessly be spotted in the Chrome Web Store. Naturally, virus analysts sound the alarm concerning such spam right into the official source of web browser extensions, requiring the Google reaction – eliminating these extensions from their place. But they are still not hurrying to repair that security issue.

Icon - Your PC hijacker

Is the C9l.xyz virus?

At the first sight, you may believe that these redirects are only aggravating, but not dangerous. Due to this reason a great deal of users are simply playing for time as opposed to removing this malware, getting much more chances of being infected with various other malware, which are much more serious than C9l.xyz is.

Besides the changed search engine or search engine result, you can additionally see different advertisements even on those sites that do not have any ads on it by default. And you can just misclick while turning off the promotion, and begin the downloading of an unidentified file, which can be a virus, or a potentially undesirable application, or even ransomware – whatever the maintainers of this hijacker desire.

If your browser is damaged as a result of the Azorult trojan activity, the system may begin malfunctioning in a short time – this symptome is just one of the most common in case of trojan injection.

Icon - remove C9l.xyz hijacker

How to remove C9l.xyz?

First, let me say several words about prevention the C9l.xyz virus injection. It is extremely simple to discuss the techniques of protecting your personal computer from such annoying items as browser hijackers, however, it is quite simple to be caught on this bait perhaps even being a professional user. As it was specified above, this unwanted program can hide after the attractive (at the first sight) promotion, or in packs with other adware you may get in dozens of manners. However, regardless of the typical intricacy of the injection techniques, it is extremely simple to stay away from the C9l.xyz hijacker presence in your system:

  • Do not follow the dubious links;
  • Restrict the usage of pseudo-free software (one which is offered as free, but has an additional unwanted programs in its pack);
  • Leave the habit of clicking advertisements on the web. If you need to buy something, it is better to google it;
  • Avoid downloading the files from dubious sources, like forums or file sharing websites.

Preparation before removing C9l.xyz.

Before starting the actual uninstall procedure, we recommend that you do the following introductory milestones.

  • Make sure you have this manual tutorial constantly ready to make use of.
  • Carry out a backup of every one of your data, including the saved logins, passwords and various other qualifications. You ought to support your information with a cloud back-up service and also ensure your data are secured from any type of kind of loss, even from the most severe infections.
  • Wait till the durable backup process mores than.

Step 1: Uninstall C9l.xyz and related software from Windows

Right here is a technique in few easy stages that must have the ability to uninstall most applications. Either you use Windows 10, 8, 7, Vista or XP, these milestones will work well. Moving the app or its folder to the Trash can be a very wrong idea. In case you do that, remnants of the app may remain, and that can cause the unstable performance of your system, malfunctions with the file type associations and other unpleasant behavior. The effective solution to get an app off your device is to remove it manually. To do that:

1. Keep holding the Windows Logo Button and “R” on your keyboard. A Pop-up window will soon arrive.

Windows keyboard R

2. In the field that appeared, type in “appwiz.cpl” -1  and choose OK – 2.

Run appwiz.cpl


3. This will open a window with all the apps available on the device. Choose the app that you want to get rid of, then choose “Uninstall

Follow the steps above and you will successfully get rid of most unwanted apps.

Step 2: Get rid of C9l.xyz from all your available browsers.

Mozilla FirefoxGoogle ChromeInternet ExplorerMicrosoft Edge

1. Launch Mozilla Firefox. Go to its menu window

2. Choose the “Add-ons” icon in the menu.

3. Find the unwanted extension and select “Remove

Mozilla Firefox Add-ons Remove

4. Upon deleting the extension, reload Mozilla Firefox, closing it with the help of a red “X” button in the upper right corner and start it again.

1. Launch Google Chrome and go to its drop menu

Google Chrome drop menu click

2. Click on “Tools” and then in the extended menu select “Extensions

Google Chrome Tools select Extensions

3. In the “Extensions” menu find the unwanted extension and apply the “Remove” button related to it.

Google Chrome Extensions Remove

4. As soon as the extension is deleted, reload Google Chrome by closing it by means of the red “X” button at the top right corner and launch it again.

1. Launch Internet Explorer

2. Click on the gear icon marked ‘Tools’ to open the drop menu and choose ‘Manage Add-ons’


3. In the “Manage Add-ons” window, locate the extension you want to delete and then click “Remove”. A pop-up window will come up to inform you that you are about to delete the selected extension, and some more add-ons might be disabled as well. Leave all the boxes checked, and choose “Remove”.

Internet Explorer extension removal

4. Once the unwanted extension is deleted, reload Internet Explorer by shutting it down from the red “X” button located at the top right corner and launch it again.

1. Launch Edge

2. Access the drop menu by clicking on the icon at the top right corner.

3. From the drop menu choose “Extensions”.

Microsoft Edge menu Extensions

4. Locate the suspected dangerous extension you want to delete and then click on the Remove button.

Microsoft Edge Extensions Remove

Step 3: Clean any registries that could be added by C9l.xyz on your device.

The usually attacked registries of Windows machines are the following:

  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce

You can access them by going to the Windows registry editor and getting rid of any values added by C9l.xyz. Follow the steps below:

  1. Start the Run Window command once again, type “regedit” and click OK.Window command regedit
  2. As soon as you open it, you can freely go to the Run and RunOnce keys, whose locations are displayed above.Window command Run and RunOnce keys
  3. You can delete the value of the virus by right-clicking on it and deleting it.Window command regedit delete the value virus

Tip: To locate a virus-created value, you can right-click on it and select “Modify” to find which file it is set to run. If this is the malware file location, delete the value.

Step 4: Scan for C9l.xyz with Loaris Trojan Remover

1. Click on the “Download” button to proceed to Loaris Trojan Remover download.

It is recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by Trojan Remover. Click on the corresponding links to check License AgreementPrivacy Policy.

2. Click “Install” to start.

Loaris Trojan Remover Install

There were 4 scan types suggested:

  • Standard Scan.
  • Full Scan.
  • Custom Scan.
  • Removable Scan.


3. After the installed has finished, click on the ‘Scan’ tab. Click on ‘Full Scan’.

Loaris Trojan Remover Full Scan

4. Once the scanning is started, Loaris will initiate the thorough analysis of your device and may soon identify specific threats currently slowing down the performance of your system. Make sure to wait until the scanning is completed to let the software fully evaluate the safety of your workstation.

Loaris Trojan Remover - scan in process

5. After Loaris Trojan Remover has finished scanning your PC for any files of the associated threat and found them, you can try to get them removed automatically and permanently by clicking on the ‘Apply’ button. There were options to move the files to quarantine, ignore or delete them.

Loaris Trojan Remover - show viruses

If any threats have been removed, it is highly recommended to restart your PC.


  1. About browser hijackers on Wikipedia
  2. Possible danger of free browser extensions

About the author

Valdis Koks

Security engineer, reverse engineering and memory forensics

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