Removal Guide

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Category: Browser Hijackers is a search engine that belongs to the SIEN software, which is a company based in France. The research material shows that the application could be spread with bundled installers. Also, it might be traveling with a program called 1stBrowser that is mentioned in the search engine’s Privacy Policy document. However, it does not matter that much how you downloaded it, what is important is that the software is untrustworthy, and you may risk your system's safety if you continue using it. Our researchers consider the application to be a browser hijacker because it can alter user’s browser preferences. If you decide to get rid of manually, we advise you to follow the removal instructions below because the process is not as easy as it might look like. should replace user’s default homepage and search engine on Google Chrome, Internet Explorer, or Mozilla Firefox. When you open the affected browser, it should load the search engine. If you take a closer look at the website’s bottom corner on your right, you should notice links to Privacy Policy, Terms of Use, and EULA (End User License Agreement). These documents are rather confusing as they only talk about a program called 1stBrowser or other software, which belongs to SIEN.

According to the statements from the EULA, SIEN software might change default search engine, so it is possible that could be spread bundled with other programs from the same developers. Nevertheless, the browser hijacker may be distributed bundled with other freeware that users might download from suspicious file-sharing web pages. It is easy to overlook bundled programs, especially if you do not read what is suggested in the setup wizard or do not choose custom installation settings.

Apart from messy documents, the browser hijacker looks like a standard search engine that allows the user to enter a keyword and gathers related results. However, these results could contain advertisements, sponsored links and other content that belongs to the software’s third-party partners. The problem is that you cannot be sure if these ads will not redirect you to malicious web pages. Some of the sites could contain Trojans, viruses or other malware. The software’s Privacy Policy states that “These other websites may place their own cookies or other files on your computer, collect data or solicit personal information from you.” It means that creators do not review third-party content that might be advertised through the search results. Thus, users have to be extremely careful if they decide to interact with these suspicious ads.

If you do not think that the search engine is worth risking your computer’s safety, we advise you to delete it right away. The application might not disappear if you just change the homepage or search engine settings through your browser. Therefore, we offer you the removal instructions placed below. They will show how to erase manually from Internet Explorer, Mozilla Firefox, and Google Chrome. Users who do not have enough experience to deal with this threat manually should download a trustworthy antimalware tool. It can locate the browser hijacker along with other possible threats on your system and delete them all.


Internet Explorer

  1. Press Windows Key+R.
  2. Type regedit and click OK.
  3. Navigate to these locations separately:
    HKCU\Software\Microsoft\Internet Explorer\DOMStorage
    HKLM\Software\Microsoft\Internet Explorer\DOMStorage
  4. Find keys titled as and
  5. Right-click these keys separately and select Delete.
  6. Go to: HKCU\Software\Microsoft\Internet Explorer\SearchScopes\{0633EE93-D776-472f-A0FF-E1416B8B2E3A}
  7. Locate a value name called TopResultURLFallback, its data should contain
  8. Right-click the TopResultURLFallback and select Modify.
  9. Replace data with{searchTerms} and select OK.
  10. Find another value name in the same path. It should be titled as URL.
  11. Right-click the URL, select Modify, delete, then type{searchTerms} and press OK.
  12. Locate one more value name called (Default). Replace its value data with Bing the same way as in the previous steps (10-11).
  13. Locate the following path: HKCU\Software\Microsoft\Internet Explorer\Main
  14. Search for a Value Name titled as Start Page, right-click the Start Page and select Modify.
  15. Replace Value Data with a website you prefer (e.g. and click OK.
  16. Navigate to: HKLM\SOFTWARE\Microsoft\Internet Explorer\AboutURLs
  17. Find a value name called Start Page, right-click it, select Modify and replace its data with an address of a website you like.

Mozilla Firefox

  1. Navigate to: C:\Users\user\AppData\Roaming\Mozilla\Firefox\Profiles\{Unique Mozilla user ID}
  2. Locate file Prefs.js and open it with Notepad.
  3. Find and delete this line: user_pref(“browser.startup.homepage”, “”)
  4. Save and close the document.

Google Chrome

  1. Locate the following path: C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default
  2. Find and erase these files: Preferences, Secure Preferences, and Web Data.
Download Remover for *
*SpyHunter scanner, published on this site, is intended to be used only as a detection tool. To use the removal functionality, you will need to purchase the full version of SpyHunter. Screenshots:


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