Recently the suspicious browser extension Dentesk has been spotted to spam browsing activity of online users. It has been distributed through the malicious website Teskden.pro primarily in Google Chrome browser which does not exclude its presence in other popular browsers. Users are redirected to the website without their will and are then forced to install the unwanted Google Chrome extension – Dentesk. The installing of this potentially unwanted extension is not recommendable as it can hijack the browser in order to collect sensitive information and display targeted advertisements. The bad news is that the redirect to Teskden.pro is likely to be caused by another potentially unwanted app installed on the PC.
This article provides detailed instructions how to remove Dentesk extension, as well as all potentially unwanted programs, from the system.
Threat Summary
| Name | Dentesk |
| Type | Adware, PUP |
| Short Description | The extension hijacks Google Chrome browser and generates advertisements, which can land you on pages injected with malware code. |
| Symptoms | You will see advertisements all over your browsers, like pop-ups, message boxes, in-text links and other types. |
| Distribution Method | Freeware Installations, Bundled Packages |
| Detection Tool |
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| User Experience | Join Our Forum to Discuss Dentesk. |
Dentesk – How Does it Infect
This suspicious browser extension is primarily distributed via the so-called software bundling technique. It allows authors of freeware to include additional potentially unwanted applications in their installers which can generate revenue for them on each install. The other “extras” are usually hidden in the Custom or Advanced install options. This is why it is good to select these settings during the installation process of any kind of software. They should allow you to unmark all unwanted options.
The suspicious Dentesk browser extension is also spread via malvertising campaigns that redirect to websites of unknown origin like Teskden.pro. It is primarily spamming Google Chrome, but browsers like Mozilla Firefox, Internet Explorer and Safari could also get affected.
Currently, the Dentesk browser extension is available on Google Play Store and could be freely downloaded which is, however, better to be avoided.
Dentesk – What Does It Do
In the one hand, Dentesk extension can significantly diminish browsing experience, on the other hand, it can redirect you to dangerous websites and infect your PCs with malware. In contrast, its authors present it as a useful extension that provides the latest and interesting news of show business, sports and politics. Unfortunately, information about its additional not so good functions lacks in this definition. Dentesk Google Chrome extension may act like a typical browser hijacker. Thus it can modify browser settings aiming to change your default search engine, new tab destination path, and display unwanted pop-up ads on web pages that you visit.
What’s more it is likely to collect information about your browsing activities like search queries and visited websites as well details about as your system. The collected information may be either personally or non-personally identifiable. Dentesk authors may share it with third-parties as a way of generating money profit. Falling into the wrong hands, all collected details may transform many users into the perfect target of various hacker attacks.
Dentesk – How to Remove it Completely from Browsers and PC
To remove the suspicious browser extension Dentesk and all potentially unwanted programs associated with it follow the step-by-step removal tutorial provided below. In case that after the manual removal you still notice browser redirects and numerous ads, you should remove any leftovers with the help of an advanced anti-malware tool. Such an application can keep your computer secure in the future.
Gergana Ivanova
Highly motivated writer with 5+ years of experience writing for ransomware, malware, adware, PUPs, and other cybersecurity-related issues. As a writer, I strive to create content that is based on thorough technical research. I find joy in the process of creating articles that are easy to understand, informative, and useful. Follow me on Twitter (@IRGergana) for the latest in the field of computer, mobile, and online security.
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- Guide 1: How to Remove Dentesk from Windows.
- Guide 2: Get rid of Dentesk on Mac OS X.
- Guide 3: Remove Dentesk in Google Chrome.
- Guide 4: Erase Dentesk from Mozilla Firefox.
- Guide 5: Uninstall Dentesk from Microsoft Edge.
- Guide 6: Remove Dentesk from Safari.
- Guide 7: Eliminate Dentesk from Internet Explorer.
- Guide 8: Disable Dentesk Push Notifications in Your Browsers.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer Stop Push Pop-ups
How to Remove Dentesk from Windows.
Step 1: Boot Your PC In Safe Mode to isolate and remove Dentesk
Step 2: Uninstall Dentesk and related software from Windows
Here is a method in few easy steps that should be able to uninstall most programs. No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it. To do that:
Follow the instructions above and you will successfully uninstall most programs.
Step 3: Clean any registries, created by Dentesk on your computer.
The usually targeted 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 opening the Windows registry editor and deleting any values, created by Dentesk there. This can happen by following the steps underneath:
1. Open the Run Window again, type "regedit" and click OK.
Tip: To find a virus-created value, you can right-click on it and click "Modify" to see which file it is set to run. If this is the virus file location, remove the value.
Before starting "Step 4", please boot back into Normal mode, in case you are currently in Safe Mode.
This will enable you to install and use SpyHunter 5 successfully.
Step 4: Scan for Dentesk with SpyHunter Anti-Malware Tool
Video Removal Guide for Dentesk (Windows).
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer Stop Push Pop-ups
Get rid of Dentesk from Mac OS X.
Step 1: Uninstall Dentesk and remove related files and objects
1.Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:
Your Mac will then show you a list of items that start automatically when you log in. Look for any suspicious apps identical or similar to Dentesk. Check the app you want to stop from running automatically and then select on the Minus (“-“) icon to hide it.
- Go to Finder.
- In the search bar type the name of the app that you want to remove.
- Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
- If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.
In case you cannot remove Dentesk via Step 1 above:
In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:
You can repeat the same procedure with the following other Library directories:
→ ~/Library/LaunchAgents
/Library/LaunchDaemons
Tip: ~ is there on purpose, because it leads to more LaunchAgents.
Step 2: Scan for and remove Dentesk files from your Mac
When you are facing problems on your Mac as a result of unwanted scripts and programs such as Dentesk, the recommended way of eliminating the threat is by using an anti-malware program. SpyHunter for Mac offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.
Video Removal Guide for Dentesk (Mac)
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer Stop Push Pop-ups
Remove Dentesk from Google Chrome.
Step 1: Start Google Chrome and open the drop menu
Step 2: Move the cursor over "Tools" and then from the extended menu choose "Extensions"
Step 3: From the opened "Extensions" menu locate the unwanted extension and click on its "Remove" button.
Step 4: After the extension is removed, restart Google Chrome by closing it from the red "X" button at the top right corner and start it again.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer Stop Push Pop-ups
Erase Dentesk from Mozilla Firefox.
Step 1: Start Mozilla Firefox. Open the menu window:
Step 2: Select the "Add-ons" icon from the menu.
Step 3: Select the unwanted extension and click "Remove"
Step 4: After the extension is removed, restart Mozilla Firefox by closing it from the red "X" button at the top right corner and start it again.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer Stop Push Pop-ups
Uninstall Dentesk from Microsoft Edge.
Step 1: Start Edge browser.
Step 2: Open the drop menu by clicking on the icon at the top right corner.
Step 3: From the drop menu select "Extensions".
Step 4: Choose the suspected malicious extension you want to remove and then click on the gear icon.
Step 5: Remove the malicious extension by scrolling down and then clicking on Uninstall.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer Stop Push Pop-ups
Remove Dentesk from Safari.
Step 1: Start the Safari app.
Step 2: After hovering your mouse cursor to the top of the screen, click on the Safari text to open its drop down menu.
Step 3: From the menu, click on "Preferences".
Step 4: After that, select the 'Extensions' Tab.
Step 5: Click once on the extension you want to remove.
Step 6: Click 'Uninstall'.
A pop-up window will appear asking for confirmation to uninstall the extension. Select 'Uninstall' again, and the Dentesk will be removed.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer Stop Push Pop-ups
Eliminate Dentesk from Internet Explorer.
Step 1: Start Internet Explorer.
Step 2: Click on the gear icon labeled 'Tools' to open the drop menu and select 'Manage Add-ons'
Step 3: In the 'Manage Add-ons' window.
Step 4: Select the extension you want to remove and then click 'Disable'. A pop-up window will appear to inform you that you are about to disable the selected extension, and some more add-ons might be disabled as well. Leave all the boxes checked, and click 'Disable'.
Step 5: After the unwanted extension has been removed, restart Internet Explorer by closing it from the red 'X' button located at the top right corner and start it again.
Remove Push Notifications caused by Dentesk from Your Browsers.
Turn Off Push Notifications from Google Chrome
To disable any Push Notices from Google Chrome browser, please follow the steps below:
Step 1: Go to Settings in Chrome.
Step 2: In Settings, select “Advanced Settings”:
Step 3: Click “Content Settings”:
Step 4: Open “Notifications”:
Step 5: Click the three dots and choose Block, Edit or Remove options:
Remove Push Notifications on Firefox
Step 1: Go to Firefox Options.
Step 2: Go to “Settings”, type “notifications” in the search bar and click "Settings":
Step 3: Click “Remove” on any site you wish notifications gone and click “Save Changes”
Stop Push Notifications on Opera
Step 1: In Opera, press ALT+P to go to Settings.
Step 2: In Setting search, type “Content” to go to Content Settings.
Step 3: Open Notifications:
Step 4: Do the same as you did with Google Chrome (explained below):
Eliminate Push Notifications on Safari
Step 1: Open Safari Preferences.
Step 2: Choose the domain from where you like push pop-ups gone and change to "Deny" from "Allow".
Dentesk-FAQ
What Is Dentesk?
The Dentesk threat is adware or browser redirect virus. It may slow your computer down significantly and display advertisements. The main idea is for your information to likely get stolen or more ads to appear on your device.
The creators of such unwanted apps work with pay-per-click schemes to get your computer to visit risky or different types of websites that may generate them funds. This is why they do not even care what types of websites show up on the ads. This makes their unwanted software indirectly risky for your OS.
What Are the Symptoms of Dentesk?
There are several symptoms to look for when this particular threat and also unwanted apps in general are active:
Symptom #1: Your computer may become slow and have poor performance in general.
Symptom #2: You have toolbars, add-ons or extensions on your web browsers that you don't remember adding.
Symptom #3: You see all types of ads, like ad-supported search results, pop-ups and redirects to randomly appear.
Symptom #4: You see installed apps on your Mac running automatically and you do not remember installing them.
Symptom #5: You see suspicious processes running in your Task Manager.
If you see one or more of those symptoms, then security experts recommend that you check your computer for viruses.
What Types of Unwanted Programs Are There?
According to most malware researchers and cyber-security experts, the threats that can currently affect your Mac can be the following types:
- Rogue Antivirus programs.
- Adware.
- Browser hijackers.
- Clickers.
- Fake optimizers.
What to Do If I Have a "virus" like Dentesk?
Do not panic! You can easily get rid of most adware or unwanted programs by firstly isolating them and then removing them from your browser and computer. One recommended way to do that is by using a reputable malware removal software that can take care of the removal automatically for you. There are many anti-malware apps out there that you can choose from. SpyHunter is one of the recommended anti-malware apps that can scan your computer for free and detect any viruses, tracking cookies and unwanted adware apps and eliminate them quickly. This saves time when compared to doing the removal manually.
How to Secure My Passwords and Other Data from Dentesk?
With few simple actions. First and foremost, it is imperative that you follow these steps:
Step 1: Find a safe computer and connect it to another network, not the one that your Mac was infected in.
Step 2: Change all of your passwords, starting from your email passwords.
Step 3: Enable two-factor authentication for protection of your important accounts.
Step 4: Call your bank to change your credit card details (secret code, etc.) if you have saved your credit card for online shopping or have done online activities with your card.
Step 5: Make sure to call your ISP (Internet provider or carrier) and ask them to change your IP address.
Step 6: Change your Wi-Fi password.
Step 7: (Optional): Make sure to scan all of the devices connected to your network for viruses and repeat these steps for them if they are affected.
Step 8: Install anti-malware software with real-time protection on every device you have.
Step 9: Try not to download software from sites you know nothing about and stay away from low-reputation websites in general.
If you follow these recommendations, your network and all devices will become significantly more secure against any threats or information invasive software and be virus free and protected in the future too.
More tips you can find on our website, where you can also ask any questions and comment underneath the articles about your computer problems. We will try to respond as fast as possible.
How Does Dentesk Work?
The Dentesk threat is typically installed as part of another application that you may have downloaded from the internet. Unwanted apps are often disguised as helpful programs, such as browser add-ons or toolbars, but they can also be included in software downloads without your knowledge.
Threats such as Dentesk can also be installed through malicious websites, email attachments, and other dubious sources. Once installed, Dentesk can collect data about your web browsing habits, such as the websites you visit and the search terms you use. This data is then used to target you with ads or to sell your information to third parties. Dentesk can also download other malicious software onto your computer, such as viruses and spyware, which can be used to steal your personal information.
Is Dentesk Malware?
If you have noticed Dentesk on your computer, you may be wondering if it is considered malware. The answer is yes, it is possible for an unwanted program to be classified as malware.
Many security experts classify potentially unwanted programs as malware. This is because of the unwanted effects that PUPs can cause, such as displaying intrusive ads and collecting user data without the user’s knowledge or consent. The best way to protect your computer from PUPs is to be careful when downloading software from the internet. Be sure to read the terms of service and privacy policies before downloading any software, and be wary of any suspicious download links or ads.
About the Dentesk Research
The content we publish on SensorsTechForum.com, this Dentesk how-to removal guide included, is the outcome of extensive research, hard work and our team’s devotion to help you remove the specific, adware-related problem, and restore your browser and computer system.
How did we conduct the research on Dentesk?
Please note that our research is based on independent investigation. We are in contact with independent security researchers, thanks to which we receive daily updates on the latest malware, adware, and browser hijacker definitions.
Furthermore, the research behind the Dentesk threat is backed with VirusTotal https://www.virustotal.com/gui/home/upload.
To better understand this online threat, please refer to the following articles which provide knowledgeable details.
References
1.Browser Redirect – What Is It?
2.Adware Is Malicious, and It Uses Advanced Techniques to Infect
3.The Thin Red Line Between Potentially Unwanted Programs and Malware
4.The Pay-Per-Install Affiliate Business – Making Millions out of Adware
5.Malicious Firefox Extensions Installed by 455,000 Users Blocked Updates