MAC.OSX.Backdoor.Icefog Trojan Removal

George Herman
George Herman
IT Security Expert

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What is MAC.OSX.Backdoor.Icefog

A Trojan horse is a very dangerous virus that stealthily infiltrates the victim’s computer. It is capable of severely damaging the system, as well as spy on the user and steal their personal information. MAC.OSX.Backdoor.Icefog is an example of such nasty virus, which affects Mac devices.

How it is distributed

The most common ways to get your Mac infected with a Trojan virus like MAC.OSX.Backdoor.Icefog are via fake update requests, software bundling, torrent files, email attachments, infected ads, etc. It is very important to use official and reliable sources for your updates and software downloads. Do not trust random ads that appear on your screen. You never know where they might redirect you to, or if the advertised product is safe. When installing programs on your Mac, always look if there’s any additional software included. If there is, we suggest you to opt out of such bonus content, since that’s very likely to be malicious software in disguise. If you do not do this, or are too careless to read what every step of the setup says, such additional software will automatically get installed on your Mac whether you want it or not. That’s why you shouldn’t mindlessly click on the ‘Next’ button, but instead pay close attention to the installation as a whole.

How it operates

The MAC.OSX.Backdoor.Icefog Trojan is capable of monitoring your online activity, as well as spying on you through your web camera and microphone. This virus can modify the Registry, corrupt/delete important system files and processes, install other unreliable software, flood your web browsers with dubious advertisements, slow down your internet connection, make your applications unresponsive, etc. Your use of the computer will not be the same and your privacy will be compromised, as long as this Trojan horse remains unattended. That’s why you need to take actions against the MAC.OSX.Backdoor.Icefog virus, so you regain control over your Mac and make sure that private data like passwords, IP addresses, bank accounts, credit card numbers, and even valuable files, doesn’t fall into the wrong hands. In this article you’ll learn how you can manually remove this dangerous parasite.

Staying safe from MAC.OSX.Backdoor.Icefog Trojan horse

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 MAC.OSX.Backdoor.Icefog Trojan horse from Mac

If you’ve had the misfortune of getting your Mac infected with the MAC.OSX.Backdoor.Icefog Trojan Horse, the instructions below can help you to remove it manually. Here’s what you need to do:

1. First, start by finding all registry entries added by MAC.OSX.Backdoor.Icefog and deleting them. You do this by holding down the Option key while looking at the Go menu in Finder to access the ~/Library folder. Find all related entries and delete them one by one.

2. 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.

3. Find Activity Monitor and double-click it.

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

5. 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.

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

7. 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.

8. All that’s left for you to do is remove any related extensions to MAC.OSX.Backdoor.Icefog 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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