Your Computer Was Locked POP-UP Scam (Mac)

Also Known As: "Your computer was locked" virus
Type: Mac Virus
Distribution: Low
Damage level: Medium

How to remove "Your computer was locked" from Mac?

What is "Your computer was locked"?

"Your computer was locked" is a fake error message that appears on deceptive/untrustworthy websites. Generally, users do not arrive at these websites intentionally - they are redirected to them by potentially unwanted applications (PUAs). These are rogue applications that are installed without permission. Once installed, they redirect to untrustworthy sites, deliver intrusive ads, and gather data. This fake error message is presented in text and audio formats.

Your computer was locked scam

According to the "Your computer was locked" fake error message, the Mac computer is blocked due to an error (code number # DT00X02) and is infected with a virus and/or spyware, and data such as Facebook logins, credit card details, email accounts, and browsing history are now at risk. This fake message urges users to contact Apple technical support via a telephone number "+1-877-914-5111" provided within five minutes (otherwise, the detected infections will cause data loss). Many scammers use identical tactics: they design fake messages that inform people of errors, virus infections, and so on. The main goal of these scammers is to encourage people to contact them and pay for so-called 'services' or 'products'. They usually present themselves as 'technicians' from well-known companies, in this case, Apple support. In fact, Apple has nothing to do with this message. If you encounter the "Your computer was locked" message, ignore it. Close the website that opened the error. If it prevents you from closing it, use Activity Monitor and close the entire browser from there. Another way to close it is to restart your computer. Do not restore the closed session, since this will return you to the website that caused this fake error message.

Potentially unwanted applications that cause redirects to websites containing fake errors (and other) messages, also deliver ads. PUAs display coupons, banners, surveys, and so on. These are displayed using tools that enable placement of third party graphical content on any site. They conceal underlying content of visited websites, and are thus annoying and diminish the browsing experience. Furthermore, once clicked, they often redirect to untrustworthy websites or execute scripts designed to download other rogue applications. Another downside of PUAs is information tracking. PUAs record IP addresses, keystrokes, search queries, URLs of visited websites, and so on. Some of the collected data might contain personal/sensitive details that PUA developers share with third parties who misuse it to generate revenue. Thus, having information tracking apps installed can lead to various privacy/browsing safety issues or even identity theft.

Threat Summary:
Name"Your computer was locked" virus
Threat TypeMac malware, Mac virus
SymptomsYour Mac became slower than normal, you see unwanted pop-up ads, you get redirected to shady websites.
Distribution methodsDeceptive pop-up ads, free software installers (bundling), fake flash player installers, torrent file downloads.
DamageInternet browsing tracking (potential privacy issues), displaying of unwanted ads, redirects to shady websites, loss of private information.
Removal

To eliminate Your computer was locked virus our malware researchers recommend scanning your computer with Combo Cleaner.
▼ Download Combo Cleaner
Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Combo Cleaner.

The internet is full of websites that display various fake messages. Some examples of other fake messages displayed on untrustworthy websites include Mac OS Support Alert, Spyware Were Found On Your Mac, and Error FXX000. Generally, the main purpose of these fake messages is to trick people into purchasing unnecessary services, products, etc. Most PUAs are very similar - developers promote them as 'useful' tools in an attempt to give the impression of legitimacy and trick users into downloading them. In fact, they provide none of the functionality promised and are used to generate revenue for developers. Few provide any real value.

How did potentially unwanted applications install on my computer?

Some PUAs have official websites, however, people usually install them through intrusive advertisements or when they are "bundled" with installation set-ups. "Bundling" is a deceptive marketing method used to trick people into installing PUAs with regular software. Typically, developers hide PUAs in "Custom", "Advanced" and other similar settings of the installation processes. Furthermore, developers avoid disclosing information about PUAs present in set-ups. Despite this, the main reason for installation of PUAs is the careless behaviour of many users - many users skip installation steps without checking the settings/or options and thus allow PUAs to be installed.

How to avoid installation of potentially unwanted applications?

To avoid inadvertent installations, follow a few simple rules. Download software using trustworthy and official sources only, especially if the software is free. Avoid using torrents, third party software downloaders, and other similar channels to download software. Bear in mind that some third party software downloaders are monetized by promoting potentially unwanted programs. Furthermore, install software with care. Check available "Advanced", "Custom" and other similar options/settings and opt-out of unwanted software. Avoid clicking intrusive ads, especially when visiting dubious websites. Some ads redirect users to gambling, adult dating, pornographic and other untrustworthy websites. If you encounter these redirects, check installed extensions, plug-ins, and add-ons on your browser. Also check the list of installed programs on your computer and remove all unknown/unwanted entries immediately. If your computer is already infected with PUAs, we recommend running a scan with Combo Cleaner Antivirus for macOS to automatically eliminate them.

Text presented in "Your computer was locked" scam:

** YOUR COMPUTER WAS LOCKED **

Error # DT00X02.
Call Apple Technical Suppport: +1-877-914-5111(Toll-Free):
Do Not Ignore This Important Warning
If you close this page without resolving issue, access to your computer will be disabled to prevent further damage to our network.

Your computer has alerted us that it was infected with virus and spyware. The following data is at risk:

1. Facebook Login
2. Credit Card Information
3. Email Credentials
4. Browsing History and Data

You must contact us immediately so our engineers can guide you through the recovery process by phone. Please call us within the next 5 minutes to prevent complete loss of your computer.
Contact Apple Engineer: +1-877-914-5111 (Toll-Free)

Security Warning:

** YOUR COMPUTER WAS LOCKED **
Error # DT00X2.
Call Apple Technical Support at: +1-877-914-5111

Appearance of "Your computer was locked" scam (GIF):

Appearance of Your computer was locked scam (GIF)

Instant automatic removal of Your computer was locked virus: Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Combo Cleaner is a professional automatic malware removal tool that is recommended to get rid of Your computer was locked virus. Download it by clicking the button below:
▼ DOWNLOAD Combo Cleaner for Mac By downloading any software listed on this website you agree to our Privacy Policy and Terms of Use. Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Combo Cleaner.

Quick menu:

Video showing how to eliminate "Your Computer Was Locked" pop-up scam using Combo Cleaner:

Potentially unwanted applications removal:

Remove potentially unwanted applications from your "Applications" folder:

mac browser hijacker removal from applications folder

Click the Finder icon. In the Finder window, select "Applications". In the applications folder, look for "MPlayerX""NicePlayer", or other suspicious applications and drag them to the Trash. After removing the potentially unwanted application(s) that cause online ads, scan your Mac for any remaining unwanted components.

Remove "your computer was locked" virus related files and folders:

Finder go to folder command

Click the Finder icon, from the menu bar. Choose Go, and click Go to Folder...

step1Check for adware-generated files in the /Library/LaunchAgents folder:

removing adware from launch agents folder step 1

In the Go to Folder... bar, type: /Library/LaunchAgents

removing adware from launch agents folder step 2
In the “LaunchAgents” folder, look for any recently-added suspicious files and move them to the Trash. Examples of files generated by adware - “installmac.AppRemoval.plist”, “myppes.download.plist”, “mykotlerino.ltvbit.plist”, “kuklorest.update.plist”, etc. Adware commonly installs several files with the same string.

step2Check for adware generated files in the /Library/Application Support folder:

removing adware from application support folder step 1

In the Go to Folder... bar, type: /Library/Application Support

removing adware from application support folder step 2
In the “Application Support” folder, look for any recently-added suspicious folders. For example, “MplayerX” or “NicePlayer”, and move these folders to the Trash.

step3Check for adware-generated files in the ~/Library/LaunchAgents folder:

removing adware from ~launch agents folder step 1


In the Go to Folder bar, type: ~/Library/LaunchAgents

removing adware from ~launch agents folder step 2

In the “LaunchAgents” folder, look for any recently-added suspicious files and move them to the Trash. Examples of files generated by adware - “installmac.AppRemoval.plist”, “myppes.download.plist”, “mykotlerino.ltvbit.plist”, “kuklorest.update.plist”, etc. Adware commonly installs several files with the same string.

step4Check for adware-generated files in the /Library/LaunchDaemons folder:

removing adware from launch daemons folder step 1
In the Go to Folder... bar, type: /Library/LaunchDaemons

removing adware from launch daemons folder step 2
In the “LaunchDaemons” folder, look for recently-added suspicious files. For example “com.aoudad.net-preferences.plist”, “com.myppes.net-preferences.plist”, "com.kuklorest.net-preferences.plist”, “com.avickUpd.plist”, etc., and move them to the Trash.

step 5 Scan your Mac with Combo Cleaner:

If you have followed all the steps in the correct order you Mac should be clean of infections. To be sure your system is not infected run a scan with Combo Cleaner Antivirus. Download it HERE. After downloading the file double click combocleaner.dmg installer, in the opened window drag and drop Combo Cleaner icon on top of the Applications icon. Now open your launchpad and click on the Combo Cleaner icon. Wait until Combo Cleaner updates it's virus definition database and click "Start Combo Scan" button.

scan-with-combo-cleaner-1

Combo Cleaner will scan your Mac for malware infections. If the antivirus scan displays "no threats found" - this means that you can continue with the removal guide, otherwise it's recommended to remove any found infections before continuing.

scan-with-combo-cleaner-2

After removing files and folders generated by the adware, continue to remove rogue extensions from your Internet browsers.

"Your computer was locked" virus removal from Internet browsers:

safari browser iconRemove malicious extensions from Safari:

Remove "your computer was locked" virus related Safari extensions:

safari browser preferences

Open Safari browser, from the menu bar, select "Safari" and click "Preferences...".

safari extensions window

In the preferences window, select "Extensions" and look for any recently-installed suspicious extensions. When located, click the "Uninstall" button next to it/them. Note that you can safely uninstall all extensions from your Safari browser - none are crucial for normal browser operation.

  • If you continue to have problems with browser redirects and unwanted advertisements - Reset Safari.

firefox browser iconRemove malicious plug-ins from Mozilla Firefox:

Remove "your computer was locked" virus related Mozilla Firefox add-ons:

accessing mozilla firefox add-ons

Open your Mozilla Firefox browser. At the top right corner of the screen, click the "Open Menu" (three horizontal lines) button. From the opened menu, choose "Add-ons".

removing malicious add-ons from mozilla firefox

Choose the "Extensions" tab and look for any recently-installed suspicious add-ons. When located, click the "Remove" button next to it/them. Note that you can safely uninstall all extensions from your Mozilla Firefox browser - none are crucial for normal browser operation.

  • If you continue to have problems with browser redirects and unwanted advertisements - Reset Mozilla Firefox.

chrome-browser-iconRemove malicious extensions from Google Chrome:

Remove "your computer was locked" virus related Google Chrome add-ons:

removing malicious google chrome extensions step 1

Open Google Chrome and click the "Chrome menu" (three horizontal lines) button located in the top-right corner of the browser window. From the drop-down menu, choose "More Tools" and select "Extensions".

removing malicious Google Chrome extensions step 2

In the "Extensions" window, look for any recently-installed suspicious add-ons. When located, click the "Trash" button next to it/them. Note that you can safely uninstall all extensions from your Google Chrome browser - none are crucial for normal browser operation.

  • If you continue to have problems with browser redirects and unwanted advertisements - Reset Google Chrome.

About the author:

Tomas Meskauskas

Tomas Meskauskas - expert security researcher, professional malware analyst.

I am passionate about computer security and technology. I have an experience of over 10 years working in various companies related to computer technical issue solving and Internet security. I have been working as an author and editor for pcrisk.com since 2010. Follow me on Twitter and LinkedIn to stay informed about the latest online security threats. Contact Tomas Meskauskas.

PCrisk security portal is brought by a company RCS LT. Joined forces of security researchers help educate computer users about the latest online security threats. More information about the company RCS LT.

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Malware activity

Global virus and spyware activity level today:

Medium threat activity
Medium

Increased attack rate of infections detected within the last 24 hours.

QR Code
Your computer was locked virus QR code
A QR code (Quick Response Code) is a machine-readable code which stores URLs and other information. This code can be read using a camera on a smartphone or a tablet. Scan this QR code to have an easy access removal guide of "Your computer was locked" virus on your mobile device.
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Platform: macOS

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Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Combo Cleaner.