How to Remove Symmi Trojan Virus from Mac

George Herman
George Herman
IT Security Expert

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What is Symmi

Symmi is the detection name of a malicious parasite from the Trojan horse category. This virus is known to infect Mac devices since the beginning of 2019. The Symmi Trojan is known to spy on its victims, collect their personal data and perform adware activities on the infected device. If you came across the name Symmi on your Mac, you are in trouble! You need to remove this virus as soon as possible, to prevent it from damaging your computer. This article will show you how. Just follow the instructions below.

How it is distributed

This type of virus is most commonly distributed via freeware, fake update messages, software bundles, email attachments and torrent files. Usually, users are too hasty and want to complete an installation process as soon as possible. Due to their haste, they often miss promoted software in the installer, which is set to get installed by default, unless told otherwise. To make sure you have full control over the situation, always choose the Custom/Advanced option. This way, you’ll be able to easily opt out of any bonus installations, marked as ‘additional’.

The Symmi Trojan is also known to be disguised as an installer, activator, crack, patch, etc.

How it operates

Once the virus has infected your Mac, it will start to spy on you. It may log the keystrokes you type, monitor your online activity, see your search queries and which sites you visit, steal your passwords, credit card numbers and bank account credentials. What’s more, this virus may even spy on you through your web cam and microphone, and take screenshots. On top of all that, this Trojan will also flood your browsers with numerous aggressive advertisements, which may lead to potentially harmful third-party websites. That being said, if you want to protect your privacy, you do not want to keep this malicious Symmi parasite on your device! The longer it stays, the worse the consequences will get!

Staying safe from Symmi 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 Symmi Trojan virus from Mac

If you’ve had the misfortune of getting your Mac infected with the Symmi 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 Symmi 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 Symmi. 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 Symmi 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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