Application.MAC.OSX.FireSheep Removal

George Herman
George Herman
IT Security Expert

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Some infections like this FireSheep virus can regenerate themselves. There is no better way to detect, remediate and prevent malware infection, than to use a professional anti-malware software like SpyHunter. One Application that is capable of solving all MAC problems.


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What is Application.MAC.OSX.FireSheep

Malware researches categorize Application.OSX.FileSheep as a PUA (Potentially Unwanted Application). Thanks to this malicious software, your web browser will be flooded with intrusive ads, unreliable pop-up messages and fake alerts. Through such sponsored content, the parasite aims not only to create revenue for its creators via the pay-per-click scheme, but to trick you into installing other shady software that you don’t need.

How it is distributed

The Application.OSX.FileSheep PUA affects only Mac devices. It is able to invade thanks to your permission, whether it was given consciously or not. Pests like this one, is known to invade when you open email attachments from unknown senders, download torrent files, install freeware and software bundles, click on infected links and ads, or update via fake update messages. To assure that no unwanted program gets installed on your computer, you need to look closely for additional software during the installation process. If there are any optional installations, it’s best to decline them, since more often than not, they turn out to be malware in disguise. Also, we strongly advise to update your software only through the developer’s official web page. Blindly trusting a random update pop-up while you’re browsing the internet will only lead to unwanted infections.

How it operates

PUAs like Application.OSX.FileSheep are known to use scare tactics, to make their victims install other trash applications. While browsing, the user may stumble upon a message that will try to make them install Flash Player. In reality, they are giving a shady app access to their computers. This parasite will flood your screen with so many ads, that soon your browser will fail to keep up with them, causing it to crash and freeze on a regular basis. Your internet speed will decrease, as will the overall performance of the web browser as a whole. It will be completely unresponsive to your actions. What’s worse is, your private data may be jeopardized! Hackers may exploit this vulnerability to obtain information like passwords, IP addresses, bank accounts, credit card numbers, etc. The longer you delay removing this threat, the worse your situation will get. That’s why you shouldn’t waste any more time! Get rid of the Application.OSX.FileSheep parasite as soon as possible!

Staying safe from Application.OSX.FileSheep PUA

Apart from having a reliable AV software installed on your Mac, there are other things you can do to ensure your device’s safety. We highly recommend you to:

  • Pay close attention when you install third-party software, especially torrent files, so you don’t install shady additional applications that you don’t want. In most cases, that’s how malicious parasites are able to infect your computer;
  • Read any Terms and Conditions you see, so you know exactly what you agree to. The last thing you want is to unknowingly give permission to a nasty virus to infiltrate your Mac;
  • Follow links that lead to trustworthy sites only;
  • It is best to visit only reliable and official websites. You never know what dangers might lurk behind an unfamiliar site;
  • No matter how attractive an ad is, if you are not familiar with the website it redirects to, it might be best to steer clear of it and not click;
  • Always check the sender’s email address before opening a message. If it states that it’s from an official company, compare the email with the one given in their official page. If there is no match, delete the message, since it most likely is fake and has malicious aims;
  • Don’t open email attachments from unknown senders. More often than not, such files carry infections that can seriously damage your computer.

How to manually remove Application.OSX.FileSheep PUA from Mac

If you’ve had the misfortune of getting your Mac infected with the Application.OSX.FileSheep PUA, the instructions below can help you to remove it manually. Here’s what you need to do:

1. Go to Utilities. You can do that by using the ⇧+⌘+U key combination, or by going to Finder and choosing Utilities from the Go main menu at the top.

2. Find Activity Monitor and double-click it.

3. A list will be displayed. Find any processes that seem suspicious to you and use the ‘Force Quit‘ option to quit them completely.

4. Open Finder. Click on the Go button from the main menu at the top, and choose Applications. An alternative way is to use the ⇧+⌘+A key combination.

5. Look for any suspicious applications, especially ones with a name similar to Application.OSX.FileSheep. If any are found, right-click on them and select the ‘Move to Trash‘ option.

6. Remove any related left-over files by going to Finder‘s search bar and typing the name of the app you want to remove. Make sure to modify the two drop down menus above to ‘System Files‘ and ‘Are Included‘, so that any hidden files are visible for you to remove. Once you find the files you want to remove, simply drag them to Trash.

7. All that’s left for you to do is remove any related extensions to Application.OSX.FileSheep from your Mac browsers.

For Mozilla Firefox extensions:

  • Open the Firefox browser and from the ‘burger’ menu in the top right corner of the window select ‘Add-ons’.
  • Select any suspicious extensions that may be related to the virus and click ‘Remove’.

For Google Chrome extensions:

  • Open the Chrome browser and select Tools > Extensions from the menu (the three dots in the top right corner of the browser window).
  • Locate any suspicious extensions that may be related to the virus and remove them.

For Safari extensions:

  • Open the Safari browser. From the Safari menu choose Preferences. Select Extensions from the options at the top.
  • Find any extensions you think are related to the virus, select them and click ‘Uninstall’. A new window will show up asking for confirmation. Click Uninstall again, for the extension to get deleted permanently from your browser.

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