Severity scale:  
  (15/100)

E.tre456_worm_osx virus. How to remove? (Uninstall guide)

removal by Olivia Morelli - - | Type: Adware

E.tre456_worm_osx – a fake trojan virus used to scare Mac users

E.tre456_worm_osx pop-up ads

E.tre456_worm_osx virus is an invented computer threat which might appear on the fake warning message out of a sudden. Usually, victims get redirected to sites displaying “IMMEDIATE ACTION REQUIRED, E.tre456_worm_osx detected” notification after clicking on a malicious link or a fake online ad. However, this message can also show up because of the adware-type program hiding inside the system. Make sure you double-check it right after this hoax stars appearing on Chrome, Firefox or other web browser.

Alternatively known as “We have detected a trojan virus” scam, this fake error message urges people to click the OK button. To convince them into doing so, it can also display a deceptive “Your system is infected with 3 viruses!” message. If the victim is tricked into clicking OK, he or she is lead into installing a rogue security software on the system. So, if you received the suspicious tre456_worm_osx virus alert on your Mac or Windows computer, refrain yourself from following its commands because you will scammed. 

The success of the invented trojan virus (e.tre456_worm_osx) message lies in its trustworthy looks and claims that a “security check” detected traces of 2 malware and 1 phishing/spyware[1]. System damage is 29.1%, so an immediate removal is required, the message says. Luckily, that is simply a scam, and you should remove the virus immediately as soon as you receive one of the following messages on your screen:

Immediate action required!
We have detected a trojan virus (e.tre456_worm_osx) on your Mac.

Press OK to begin the repair process.

Immediate action required!
We have detected a trojan virus (e.tre456_worm_osx) on your Mac.

There is no need to remove E.tre456_worm_osx virus because it is not even on your Mac. If you clicked the “Scan Now” button, the web page would imitate a computer scan (there is no scan going on; it is yet another scam to trick you into installing a rogue system optimization product). However, you should definitely take care of adware, browser hijackers and similar PUPs removal from your computer because this is the only way to prevent these fake ads from reappearing.

The fake scanner can also “detect” these viruses:

Clicking on “Remove viruses now” button will download a suspicious system cleaner to your computer, so make sure you stay away from this button. The program doesn’t have the best reputation, so we do not recommend using it. Especially for E.tre456_worm_osx removal, because the name of this virus is a clear sign of a scam.

Alerts that include Trojan virus e.tre456_worm_osx name are deceptive, and, if you happen to notice that your browser repeatedly redirects you to such suspicious websites, you should check your computer with a trustworthy security software instead. It goes without saying that you shouldn’t rely on a program that suggests your computer is infected without actually checking it.

It is a known marketing technique to scare[2] the computer user and convince him/her to install a suspicious security product. If you have any suspicions about your computer’s security, consider installing a program like Reimage to clean up your PC.

Avoid installing spyware on your Mac

Macs are vulnerable to spyware and malware, but it seems that creators of severe computer threats aren’t that interested in this market yet. That, however, cannot be said about spyware developers.

DieViren.de[3] points out that the number of Mac spyware increased significantly. Therefore, if you started experiencing redirects to suspicious domains, we recommend checking your Mac for ad-supported programs and removing them ASAP.

Spyware-type programs (adware, browser hijackers) tend to sneak into computers alongside popular free apps. Therefore, if you have downloaded a new app from the Internet and not from Apple Store, it is very likely that it will contain some unwanted attachments.

To decompose software bundle, consider using Custom/Advanced installation settings. These will allow you to see all of the files and extra programs added to your download and allow you to drop them.

Remove E.tre456_worm_osx virus alert from your Mac

When looking for a method to remove E.tre456_worm_osx, do not choose the program promoted via a website that promotes “Your Mac is infected with 3 viruses” scam. In reality, such virus doesn’t even exist. However, the fact that you were redirected to such suspicious website gives you a hint that your Mac OS isn’t protected and a certain adware might be lurking on it.

To make sure that your system is not infected with computer worms, trojan horses and similar malware, you should scan it with one of these programs that are listed below. They could also help you with the E.tre456_worm_osx removal as well. However, at the moment there is no information that this virus does even exist. Be careful with scams because their number has been increasing rapidly.

You can remove virus damage automatically with a help of one of these programs: Reimage, Malwarebytes MalwarebytesCombo Cleaner, Plumbytes Anti-MalwareMalwarebytes Malwarebytes. We recommend these applications because they detect potentially unwanted programs and viruses with all their files and registry entries that are related to them.

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Compatible with Microsoft Windows Supported versions Compatible with OS X Supported versions
What to do if failed?
If you failed to remove virus damage using Reimage, submit a question to our support team and provide as much details as possible.
Reimage is recommended to remove virus damage. Free scanner allows you to check whether your PC is infected or not. If you need to remove malware, you have to purchase the licensed version of Reimage malware removal tool.
Alternative Software
Different security software includes different virus database. If you didn’t succeed in finding malware with Reimage, try running alternative scan with Malwarebytes.
Alternative Software
Different security software includes different virus database. If you didn’t succeed in finding malware with Reimage, try running alternative scan with Combo Cleaner.

To remove E.tre456_worm_osx virus, follow these steps:

Mac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Erase E.tre456_worm_osx from Mac OS X system

To uninstall the adware that displays fake E.tre456_worm_osx ads from Windows OS, follow the given directions. You will need to access Applications folder and drag all suspicious programs to Trash.

  1. If you are using OS X, click Go button at the top left of the screen and select Applications. Cick 'Go' and select 'Applications'
  2. Wait until you see Applications folder and look for E.tre456_worm_osx or any other suspicious programs on it. Now right click on every of such entries and select Move to Trash. Click on every malicious entry and select 'Move to Trash'
Mac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Eliminate E.tre456_worm_osx from Internet Explorer (IE)

  1. Remove dangerous add-ons
    Open Internet Explorer, click on the Gear icon (IE menu) on the top right corner of the browser and choose Manage Add-ons. Click on menu icon and select 'Manage add-ons'
  2. You will see a Manage Add-ons window. Here, look for E.tre456_worm_osx and other suspicious plugins. Disable these entries by clicking Disable: Right click on each of malicious entries and select 'Disable'
  3. Change your homepage if it was altered by virus:
    Click on the gear icon (menu) on the top right corner of the browser and select Internet Options. Stay in General tab.
  4. Here, remove malicious URL and enter preferable domain name. Click Apply to save changes. Delete malicious URL, enter your desired domain name and click 'Apply' to save changes
  5. Reset Internet Explorer
    Click on the gear icon (menu) again and select Internet options. Go to Advanced tab.
  6. Here, select Reset.
  7. When in the new window, check Delete personal settings and select Reset again to complete E.tre456_worm_osx removal. Go to 'Advanced' tab and click on 'Reset' button. Now select 'Delete personal settings' and click on 'Reset' button again
Mac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Delete E.tre456_worm_osx virus from Microsoft Edge

Reset Microsoft Edge settings (Method 1):

  1. Launch Microsoft Edge app and click More (three dots at the top right corner of the screen).
  2. Click Settings to open more options.
  3. Once Settings window shows up, click Choose what to clear button under Clear browsing data option. Go to Settings and select 'Choose what to clear'
  4. Here, select all what you want to remove and click Clear. Select 'Clear' button
  5. Now you should right-click on the Start button (Windows logo). Here, select Task Manager. Open the start menu and select 'Task Manager'
  6. When in Processes tab, search for Microsoft Edge.
  7. Right-click on it and choose Go to details option. If can’t see Go to details option, click More details and repeat previous steps. Right-click 'Microsoft Edge' and select 'Go to details' Select 'More details' if 'Go to details' option fails to show up
  8. When Details tab shows up, find every entry with Microsoft Edge name in it. Right click on each of them and select End Task to end these entries. Find Microsoft Edge entries and select 'End Task'

Resetting Microsoft Edge browser (Method 2):

If Method 1 failed to help you, you need to use an advanced Edge reset method.

  1. Note: you need to backup your data before using this method.
  2. Find this folder on your computer: C:\Users\%username%\AppData\Local\Packages\Microsoft.MicrosoftEdge_8wekyb3d8bbwe.
  3. Select every entry which is saved on it and right click with your mouse. Then Delete option. Go to Microsoft Edge folder on your computer, right-click every entry and click 'Delete'
  4. Click the Start button (Windows logo) and type in window power in Search my stuff line.
  5. Right-click the Windows PowerShell entry and choose Run as administrator. Find Windows PowerShell, right-click it and select 'Run as administrator'
  6. Once Administrator: Windows PowerShell window shows up, paste this command line after PS C:\WINDOWS\system32> and press Enter:
    Get-AppXPackage -AllUsers -Name Microsoft.MicrosoftEdge | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register $($_.InstallLocation)\AppXManifest.xml -Verbose}
    Copy and paste a required command and press 'Enter'

Once these steps are finished, E.tre456_worm_osx should be removed from your Microsoft Edge browser.

Mac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Get rid of E.tre456_worm_osx from Mozilla Firefox (FF)

  1. Remove dangerous extensions
    Open Mozilla Firefox, click on the menu icon (top right corner) and select Add-ons Extensions. Click on menu icon and select 'Add-ons'
  2. Here, select E.tre456_worm_osx and other questionable plugins. Click Remove to delete these entries. Select 'Extensions' and look for malicious entries. Click 'Remove' to get rid of each of them
  3. Reset Mozilla Firefox
    Click on the Firefox menu on the top left and click on the question mark. Here, choose Troubleshooting Information. Click on menu icon and then on '?'. Select 'Troubleshooting Information'
  4. Now you will see Reset Firefox to its default state message with Reset Firefox button. Click this button for several times and complete E.tre456_worm_osx removal. Click on 'Reset Firefox' button for a couple of times
Mac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Remove E.tre456_worm_osx from Google Chrome

To uninstall e.tre456_worm_osx from Chrome, you just need to reset this web browser. This procedure will help you get rid of vague extensions and similar malicious components.

  1. Delete malicious plugins
    Open Google Chrome, click on the menu icon (top right corner) and select Tools Extensions. Click on menu icon. Select 'Tools' and 'Extensions'
  2. Here, select E.tre456_worm_osx and other malicious plugins and select trash icon to delete these entries. Look for malicious entries and delete each of them by clicking on the Trash bin icon
  3. Click on menu icon again and choose Settings Manage Search engines under the Search section. When in 'Settings', select 'Manage search engines...'
  4. When in Search Engines..., remove malicious search sites. You should leave only Google or your preferred domain name. Click 'X' to remove malicious URLs
  5. Reset Google Chrome
    Click on menu icon on the top right of your Google Chrome and select Settings.
  6. Scroll down to the end of the page and click on Reset browser settings. When in 'Settings', scroll down to 'Reset browser settings' button and click on it
  7. Click Reset to confirm this action and complete E.tre456_worm_osx removal. Click on 'Reset' button to complete your removal
Mac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Uninstall E.tre456_worm_osx from Safari

To remove tre456_worm_osx from Safari, carry out the provided instructions.

  1. Remove dangerous extensions
    Open Safari web browser and click on Safari in menu at the top left of the screen. Once you do this, select Preferences. Click on 'Safari' and select 'Preferences'
  2. Here, select Extensions and look for E.tre456_worm_osx or other suspicious entries. Click on the Uninstall button to get rid each of them. Go to 'Extensions' and uninstall malicious add-ons
  3. Reset Safari
    Open Safari browser and click on Safari in menu section at the top left of the screen. Here, select Reset Safari.... Click on 'Safari' and select 'Reset Safari...'
  4. Now you will see a detailed dialog window filled with reset options. All of those options are usually checked, but you can specify which of them you want to reset. Click the Reset button to complete E.tre456_worm_osx removal process. Select all options and click on 'Reset' button

About the author

Olivia Morelli
Olivia Morelli - Ransomware analyst

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References

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