Click on screenshot to zoom
Danger level 7
Type: Browser Hijackers
Common infection symptoms:
  • Hijacks homepage
  • Changes default search engine

If you have a MAC computer, you may encounter a threat called It is quite similar to another suspicious tool known as and consequently falls under the same classification of browser hijackers. Such applications might endanger user’s privacy or introduce him to potentially malicious content. Not to mention, by entering the system might modify user’s preferences on Safari, Mozilla Firefox, and Google Chrome. For those who encounter this annoying browser hijacker, we would advise them to eliminate it without any hesitation. No doubt there are more reputable search engines to surf the Internet with, so it is no use to keep such an unreliable tool on the system. Nonetheless, there is no need to hurry too as you could read the text first and then if you decide to remove the threat you could follow the instructions available below the article.

It seems might come with a particular program called Pensirot Installer or simply Pensirot. There are a few ways this application could enter the system, but the more likely one is through bundled software installers. Usually, such files are downloaded while visiting doubtful file-sharing web pages, clicking suspicious pop-up ads, etc. Thus, you can say that the fact the threat was able to settle in suggests the user could have been a bit too careless while interacting with potentially dangerous web pages and the content they offer. In which case, we would recommend staying away from untrustworthy websites and pick legitimate ones instead. Also, our researchers say some users install suspicious applications accidentally by not reviewing the information displayed in the configuration wizard, so it is another thing it might be wise to keep in mind if you wish to maintain the computer's security.

Furthermore, according to the description given on the tool’s End User License Agreement document located on, “Pensirot Installer is a delivery and installation platform (“Pensirot”) which performs and optimizes the installation of software applications” belonging to unmentioned independent software vendors. The same document claims this downloader can also change the user's default homepage preferences or in other words hijack the browser by making it load It is important to mention the downloader’s presented tools, and advertising content is supposed to belong to the third party, and the browser hijacker’s creators do not take any responsibility for such content. It means there are no guarantees it will be reliable and safe for you to interact with. This is why our researchers recommend paying attention not just to the offered programs, but the advertisements you might see while searching the Internet with too.

Besides the advertisements that could promote potentially dangerous content like adware, potentially unwanted programs, or even malicious threats like Trojans, viruses, and so on, the browser hijacker could advertise sites displaying fake surveys, lotteries, etc. As you might be aware of such websites may ask for user’s personal information and given the software’s creators do not claim any responsibility for the third-party web pages it would be unwise to provide any sensitive data if you end up on a suspicious site. Speaking of, its description says it is not supposed to be gathering private data, although it could still collect anonymous data to help provide the user with more tempting ads.

All thing considered, or the application it comes with does not appear to be reliable tools. Therefore, our specialists advise not to take any risks and get rid of them at once. Naturally, some users might not know how to delete the browser hijacker or the mentioned downloader, and so we are placing step by step instructions showing how to erase the potential threats manually. If you have any questions related to the removal part or the untrustworthy search engine itself, you can leave us a message a bit below the comments section too.



  1. Launch Safari.
  2. Open Safari menu available on a toolbar located on top of your screen.
  3. Click Clear History and select how far back it should be erased.
  4. Press the Clear History button.
  5. Open the Safari menu again and go to Preferences.
  6. Click the Advanced tab and choose Show Develop menu in menu bar.
  7. Go to Develop menu and press Empty Caches.
  8. Then delete unreliable extensions by opening Preferences and selecting Extensions.
  9. Have a look at the installed extensions.
  10. Remove or disable the plugins you suspect to be potentially dangerous or unreliable.
  11. Navigate to Security and unmark Allow Plug-ins.
  12. Restart the browser.

Mozilla Firefox

  1. Go to Mozilla Firefox.
  2. Select the Help icon and click Troubleshooting information.
  3. Choose Refresh Firefox.
  4. Press Refresh Firefox again.
  5. Select Finish and restart the browser.

Google Chrome

  1. Launch the browser.
  2. Tap Alt+F and choose Settings.
  3. Scroll below and press Advanced.
  4. Then slide down once more and click Reset.
  5. Tap the Reset button and restart Google Chrome.

Get rid of the downloader related to

  1. Launch the Finder application.
  2. Choose Applications and look for Pensirot downloader.
  3. Mark the program’s icon by clicking it once.
  4. Navigate to the File menu located on the top-left corner.
  5. Select Move To Trash.
  6. Tap and hold the Trash icon.
  7. Wait until a pop-up menu opens up.
  8. Press Empty Trash.
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