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Remove "ZEUS Virus Detected" Mac warning from Safari, Chrome and Firefox

Remove "ZEUS Virus Detected" Mac warning from Safari, Chrome and Firefox

Get rid of Zeus virus alert hoax on Mac, which is caused by malicious code hijacking Safari and other browsers in order to dupe users into wasting money.

Update: November 2019

There are several components constituting the average tech support scam. First off, threat actors need to infect a Mac computer with a malware strain that runs malicious JavaScript code in an infinite loop. This type of infection, commonly referred to as a hijacker or PUP (potentially unwanted program), forces Internet hits to a predefined web page containing an error message and generating persistent popups off and on. Secondly, the crooks have to utilize some sort of an intimidation hype in order to pressure a victim into following rogue recommendations. In the case of the ongoing Mac fraud campaign under scrutiny, this scare component is the notorious Zeus virus.

However, the fact that the operators of this particular hoax are using said malware’s name in their illegal activity is a huge giveaway. The thing is, Zeus is Windows-only malware and has never been used in cyber-attacks against Macs. It was designed to run on the operating system that has nothing to do with Apple. Despite this, the bad guys are simply pulling off the exact same fraud on both platforms, trying to cash in on people’s lack of security awareness. Anyway, Mac users who end up catching the above-mentioned browser hijacking entity encounter a BSOD-style lock screen when surfing the web. It contains a bunch of process names and timestamps, but the main catch is a popup that says, “Don’t restart your computer. Windows detected ZEUS Virus. The infections detected indicate some recent downloads on the computer which in turn has created problems on the computer. Call technical support [phone number] and share this code [hexadecimal code] to the Agent to fix this.”

Again, this warning message doesn’t make any sense for Mac, but the con artists don’t seem to care. Another popup titled Confirm Navigation says, “The problem is caused by an unusual activity performed on this machine,” and also instructs the victim to call rogue customer support for troubleshooting. Unfortunately, no matter which button you click on this alert – Leave Page or Stay On Page – the lock screen won’t go away, therefore users are stuck with the counterfeit Zeus virus alerts that persevere regardless.

As of 2019, cybercrooks have added some rationality to this tech support fraud, making it look a bit truer to life. Unlike its early crude variants, newer scams zeroing in on Macs no longer involve the Windows theme or hilariously contain recommendations to contact a Microsoft technician. Instead, the “Zeus virus detected!!!” popups are Mac-specific and they advise that victims reach out to Apple help desk. Moreover, the spoof alerts say, “If you leave this site your macOS will remain damaged and vulnerable” in order to enhance the scare effect. Furthermore, they include more details regarding the gist of the purported problem and the associated consequences, emphasizing that “a suspicious Trojan was trying to access your logins, banking details & tracking your Internet activity”. With this tweak in the misleading Zeus virus Mac campaign, users are more likely to fall for the hoax than before.

It’s important to understand a few essential things pertaining to the hoax in question. Every single bit of information provided on this scary-looking page is a lie – there is no Zeus Trojan on board, nor is the machine going to crash unless you give the impostors a call. The only infection that’s inside the Mac is an aggressive browser plugin or extension that redirects Safari, Chrome or Firefox to the fake warning site in a recurrent manner. The idea of this whole scam boils down to persuading users into dialing the telephone number provided. A self-proclaimed “technician” on the other end will say that the only way to fix the problem and avoid critical Mac damage is to pay about $250.

To avoid the Zeus virus popup and redirect issue, be sure to steer clear of dubious torrent sites, suspicious MP3 download sites and portals that distribute free software in the form of compound application bundles. If your browser of choice is already acting up due to this infection, don’t linger with cleanup. The walkthrough below will give you clues on how to sort things out with the fake Zeus virus popups on Mac.

Zeus virus alerts manual removal for Mac

The steps listed below will walk you through the removal of the malicious application that causes fake Zeus detection alerts in the first place. Be sure to follow the instructions in the order specified.

  1. Open up the Utilities folder as shown below

  2. Locate the Activity Monitor icon on the screen and double-click on it

  3. Under Activity Monitor, find a suspicious process that uses up lots of CPU and shouldn’t be running, select it and click Quit Process
  4. A dialog should pop up, asking if you are sure you would like to quit the troublemaking process. Select the Force Quit option
  5. Click the Go button again, but this time select Applications on the list. Find the dubious entry on the interface, right-click on it and select Move to Trash. If user password is required, go ahead and enter it

  6. Now go to Apple Menu and pick the System Preferences option

  7. Select Accounts and click the Login Items button. The system will come up with the list of the items that launch when the computer is started up. Locate the potentially unwanted app there and click on the “-” button.

Get rid of fake Zeus virus alert popups in web browser on Mac

To begin with, settings for the web browser that got hit by this virus should be restored to their default values. The overview of steps for this procedure is as follows:

  1. Reset Safari
    • Open the browser and go to Safari menu. Select Preferences in the drop-down list

    • Once the Preferences screen appears, hit the Privacy tab at the top. Find the option that says Remove All Website Data and click on it

    • The system will display a confirmation dialog that also includes a brief description of what the reset does. Specifically, you may be logged out of some services and encounter other changes of website behavior after the procedure. If you’re okay with that, go ahead and click the Remove Now button

    • In order to selectively clear data generated by certain websites only, not all of them, hit the Details button under the Privacy section of Safari Preferences

    • This feature will list all websites that have stored potentially sensitive data, including cache and cookies. Select the one, or ones, that might be causing trouble and click the appropriate button at the bottom (Remove or Remove All). Click the Done button to exit.
  2. Reset Google Chrome
    • Open Chrome, click the More (⁝) icon in the top right-hand part of the window, and select Settings in the drop-down
    • When on the Settings pane, select Advanced
    • Scroll down to the Reset settings section. Under the Restore settings to their original defaults option, click the Reset settings button

    • Confirm the Chrome reset on a dialog that will pop up. When the procedure is completed, relaunch the browser and check it for malware activity.
  3. Reset Mozilla Firefox
    • Open Firefox and select Help – Troubleshooting Information
    • On the page that opened, click the Reset Firefox button

Get rid of Zeus virus Mac using Freshmac automatic removal tool

When confronted with malicious code like the Zeus virus tech support scam on Mac, you can neutralize its toxic impact by leveraging a specially crafted system utility. The Freshmac application (read review) is a perfect match for this purpose as it delivers essential security features along with must-have modules for Mac optimization.

This tool cleans unneeded applications and persistent malware in one click. It also protects your privacy by eliminating tracking cookies, frees up disk space, and manages startup apps to decrease boot time. On top of that, it boasts 24/7 tech support. The following steps will walk you through automatic removal of the Zeus virus Mac infection.

  1. Download Freshmac installer onto your machine. Double-click the Freshmac.pkg file to trigger the installer window, select the destination disk and click Continue. The system will display a dialog asking for your password to authorize the setup. Type the password and click Install Software

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  2. Once the installation has been completed, Freshmac will automatically start a scan consisting of 5 steps. It scans cache, logs, unused languages, trash, and checks the Mac for privacy issues.

  3. The scan report will then display your current system health status and the number of issues detected for each of the above categories. Click the Fix Safely button to remove junk files and address privacy issues spotted during the scan.

  4. Check whether the Zeus virus alert problem has been fixed. If it perseveres, go to the Uninstaller option on Freshmac GUI. Locate an entry that appears suspicious, select it and click Fix Safely button to force-uninstall the unwanted application.

  5. Go to Temp and Startup Apps panes on the interface and have all redundant or suspicious items eliminated as well. The Zeus virus Mac fraud shouldn’t be causing any further trouble.

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