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Danger level 6
Type: Browser Hijackers
Common infection symptoms:
  • Hijacks homepage
  • Changes default search engine is considered to be a browser hijacker by experienced researchers analyzing malware, so if you one day find this page set on your default web browser, and it loads automatically whenever you launch it, it means that your browser has been hijacked. In other words, its settings have been changed without your knowledge. Specialists working at say that any web browser can be hijacked, including Internet Explorer, Mozilla Firefox, and Google Chrome. While browser hijackers are not as dangerous as Trojans, ransomware, backdoors, or similar computer threats, these threats are undoubtedly extremely irritating since they remove users’ preferred pages from their web browsers. As a consequence, we highly recommend that you remove the browser hijacker the moment you encounter it. It is the only way to undo the undesirable changes applied. Some threats are harder to remove than others. Luckily, it seems that the browser hijacker belongs to the group of threats that can be removed quite easily. Please use our manual removal guide if you need some help.

No doubt your web browser has already been hijacked if has been set as your default search provider, homepage, and New Tab even though you have not agreed with the changes consciously. At first glance, the page set might seem to be an ordinary search provider because it contains a search box and enables users to search for images, videos, and general information. Research has shown that returns Bing search results after the search query is entered by the user. Even though Bing is not considered a malicious search provider, we would recommend being careful with the search results it displays because there is a small possibility that not all the search results could be trusted fully. Research has shown that users who perform searches using might see some modified search results too. They might take users to untrustworthy websites. These websites might not have what users are looking for, they might promote unreliable software and/or services, and they might even try to get some information about users. We probably do not even need to say that users do not know that they have been taken to an unreliable page and, consequently, they do not hurry to leave them.

There are two other drawbacks the browser hijacker has. First, it promotes third-party applications, so if you have ended up with it, i.e. your browsers’ settings have been changed out of the blue, it is very likely that another suspicious application has been installed on your computer as well. It might promote any program, but we know for sure that one of the applications it promotes is the PdfPro100 app. Second, the browser hijacker might present users with third-party ads, as it is stated in its Privacy Policy. Of course, it is emphasized that its developer will not take responsibility for the safety and the content of these advertisements.

As mentioned, the appearance of on all web browsers clearly shows that the browser hijacker has successfully entered the computer. Specialists have carried out research to find more about the distribution of this browser hijacker. It has turned out that it is mainly distributed through software bundles and primarily targets users living in the United Kingdom. Of course, there is still a risk to encounter it even if you live on another continent because you surf the same Internet. A bunch of untrustworthy applications are spread bundled, but it does not mean that you could easily prevent them all from entering the system alone. Luckily, there is a more effective way to ensure the system’s protection against malware. You just need to install a reputable security tool on your computer and you will never encounter a new threat. can be deleted both manually and automatically. No doubt it is easier to delete threats with automated malware removers; however, you should be able to take care of the browser hijacker manually without much difficulty as well. It will no longer bother you if you delete the folder located in %APPDATA% and reset your web browser to default. Specialists say that some users might find the Deepteep entry in Control Panel too. Are you one of them? If so, you could delete the hijacker just like you erase ordinary applications.


Remove the browser hijacker component

  1. Tap Win+E.
  2. Type %APPDATA% in the address bar and press Enter.
  3. Delete the AppSync folder.

Reset your affected web browsers to default

Internet Explorer

  1. Start Internet Explorer and press Alt+T.
  2. Click Internet Options.
  3. Open the Advanced tab.
  4. Click Reset.
  5. Enable Delete personal settings by checking its box.
  6. Click Reset.

Mozilla Firefox

  1. Start Mozilla Firefox and press Alt+H.
  2. Access Troubleshooting information.
  3. Click Refresh Firefox.
  4. Confirm by clicking Refresh Firefox in the pop-up window.

Google Chrome

  1. Open Google Chrome.
  2. Press Alt+F.
  3. Select Settings.
  4. Click Advanced at the very bottom.
  5. Scroll down until you find the Reset and clean up section.
  6. Click Restore settings to their original defaults.
  7. Click Reset settings in the pop-up window.
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