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Danger level 7
Type: Browser Hijackers
Common infection symptoms:
  • Hijacks homepage
  • Changes default search engine

You should not hesitate to remove because although it looks like a harmless search engine, it is a browser hijacker. It can take over your Firefox, Internet Explorer, or Chrome browser, but it is unlikely to do that without your permission. The infection is most likely to be introduced to you as you download something else. Software bundles are often used for the distribution of malware and useless programs, which is why you need to be cautious whenever you face them. Unfortunately, the operators of bundled installers often put extremely attractive programs up front to push users into downloading the entire bundles. We know for sure that the hijacker can be bundled with PdfPro100 – an attractive program that offers to convert files to PDF for free – but it could be packaged along with many other programs and extensions. Some of them could be malicious and unreliable, and so you need to keep your eyes open. If you discover that you need to delete along with other threats, we can offer you a solution that will help you clean your operating system fully and completely.

If you type keywords into the “Enter your search” box provided by, you will be redirected to, where relevant search results will be shown to you. That is part of the trick. The results appear to be reliable because they are represented using a well-known search engine. Unfortunately, some of the links included can be unreliable. How so? could inject them. Although Yahoo Search is the chosen search engine right now, it is known that the hijacker can switch between different ones. Just recently, it was redirecting to Bing Search. That is exactly how the clones of the hijacker –,, and – work too! Ultimately, if you are redirected to a search engine, you need to think twice before interacting with the links shown. Even if you are informed that searches would be redirected, you still want to be careful. You also want to think if you want to continue using an entirely useless search engine. The hijacker offers nothing else besides the questionable access to a third-party engine, and that is the perfect reason to delete it.

Let’s talk about third-party programs a little more before you start the removal process. Cyber criminals, schemers, and malware distributors are successful because they are smart. They know what users like and dislike, and what they are or are not attracted to. This helps them conceal malware using misleading disguises, and you might end up installing it without realization. So, if you believe that you have installed along with harmless, legitimate, and even helpful programs, do not be surprised if a reliable malware scanner says otherwise. When it comes to malware scanners, you need to be extremely cautious too because there are plenty that are unreliable. Without a doubt, if you install an unreliable malware scanner, it is unlikely that you will get a trustworthy service. Make sure you install a legitimate malware scanner if you want to know if you need to remove malicious threats.

If you find an uninstaller by the name “Bonanzoro,” it might be enough to execute it to get rid of the hijacker. Most likely, that is something Internet Explorer users would have to do. Firefox and Chrome users might have to remove extensions linked to the hijacker. If you cannot delete that way, you might have to reset your browsers to restore default search provider, homepage, and new tab pages. All of these processes are presented below. What if the hijacker persists regardless of your efforts? In that case, you might have to employ the help of anti-malware software. It certainly can be helpful if other threats exist because this software can remove everything that is malicious or unreliable automatically. You also want to install it if you care about your virtual security because it can simultaneously clean your operating system and protect it against malware and virtual threats. Hopefully, we have answered all questions, but if we have not, please add them in the comments section. Removal

Uninstall Bonanzoro and remove hijacker’s components

  1. Tap Win+R to launch RUN and then enter control panel into the box.
  2. In the Control Panel menu move to the Uninstall a program menu.
  3. Uninstall the application called Deepteep.
  4. Tap Win+R to launch Explorer and then enter %APPDATA% into the field at the top.
  5. Delete the folder named AppSync.

Reset Google Chrome

  1. Open the browser, tap Alt+F, and click Settings.
  2. Click Advanced at the bottom to expand the menu.
  3. Click Restore settings to their original defaults and then Reset settings.
  4. Tap Ctrl+Shift+Delete and choose an appropriate time range.
  5. Select appropriate boxes and then click Clear data.

Reset Mozilla Firefox

  1. Open the browser, tap Alt+H, and click Troubleshooting Information.
  2. Click the Refresh Firefox… button and then confirm the action.
  3. Tap Ctrl+Shift+Delete keys and choose an appropriate time range.
  4. Select appropriate boxes and then click Clear Now.

Reset Internet Explorer

  1. Open the browser, tap Alt+T keys, and click Options.
  2. Click the Advanced tab, click Reset, and then click Reset again to confirm.
  3. Tap Ctrl+Shift+Delete keys to open the Delete Browsing History menu.
  4. Select appropriate boxes and then click Delete.
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