Stop redirects to lp.macapps-optimize.club pop-up on Mac computers

Also Known As: lp.macapps-optimize.club pop-up
Type: Mac Virus
Distribution: Low
Damage level: Medium

How to avoid redirects to lp.macapps-optimize[.]club on Mac computers

What is lp.macapps-optimize[.]club?

lp.macapps-optimize[.]club is the address of a deceptive website that informs visitors that their computers are infected with viruses. Typically, websites of this type display fake virus messages to trick people into installing a dubious application that supposedly removes the 'detected viruses'. At time of research, lp.macapps-optimize[.]club promoted a potentially unwanted application (PUA) called Smart Mac Booster. Websites such as lp.macapps-optimize[.]club and apps such as Smart Mac Booster cannot be trusted. Generally, people are redirected to these websites when PUAs are already installed on browsers or operating systems.

lp.macapps-optimize[.]club scam

At first, lp.macapps-optimize[.]club displays a pop-up window notifying visitors that the MacOS might be infected with viruses, which must be removed immediately. The lp.macapps-optimize[.]club main web page states that the operating system is infected with three viruses including malware, phishing software, and spyware. To prevent further system damage (loss of apps, photos, etc.), and keep personal and banking information safe, visitors are encouraged to scan their systems by clicking the "Scan Now" button. Generally, these websites run fake scanners that detect viruses and offer download and installation of another dubious app. As mentioned, lp.macapps-optimize[.]club is used to promote Smart Mac Booster, however, it could also be used to promote other dubious apps. If allowed, it downloads maccleaner.pkg, an installation file that can be used to distribute other dubious apps. In any case, no apps advertised through deceptive, untrustworthy web pages can be trusted.

Browsers commonly force users to visit dubious websites when PUAs are installed on the browser or operating system. In most cases, PUAs display intrusive advertisements and/or gather information relating to users' browsing habits. They display coupons, banners, surveys, pop-ups, and other ads that, if clicked, redirect users to untrustworthy web pages or run scripts that download/install other unwanted apps. PUAs often collect user-system information including, for example, IP addresses, geolocations, entered search queries, URLs of visited pages, and other data of this kind. PUAs can also record personal, sensitive details. Creators of these apps share the information with other parties who misuse it to generate revenue.

Threat Summary:
Name lp.macapps-optimize.club pop-up
Threat Type Mac malware, Mac virus.
Fake Claim The website performs a fake scan and displays results of viruses/errors supposedly present on the system, which must be eliminated.
Promoted Unwanted Application Smart Mac Booster
Serving IP Address 69.162.126.230
Detection Names Full List Of Detections (VirusTotal)
Symptoms Your Mac becomes slower than normal, you see unwanted pop-up ads, you are redirected to dubious websites.
Distribution methods Deceptive pop-up ads, free software installers (bundling), fake flash player installers, torrent file downloads.
Damage Internet browser tracking (potential privacy issues), display of unwanted ads, redirects to dubious websites, loss of private information.
Malware Removal (Mac)

To eliminate possible malware infections, scan your Mac with legitimate antivirus software. Our security researchers recommend using Combo Cleaner.
▼ Download Combo Cleaner for Mac
To use full-featured product, you have to purchase a license for Combo Cleaner. Limited three days free trial available.

Lp.macapps-optimize[.]club is similar to many other websites of this type, some examples are apple.com-clean-mac[.]site, apple.com-scan-mac[.]xyz and apple.com-mac-optimizer.xyz. In most cases these websites trick people into installing dubious apps. In some cases these apps are not free. PUAs that open deceptive websites (and perform other actions) are usually advertised as useful apps that supposedly provide various features or other value, however, most people download and install apps of this type unintentionally, that is why they are called potentially unwanted applications.

How did potentially unwanted applications install on my computer?

Typically, unwanted/unintentional downloads and installations happen when people click deceptive advertisements or when developers use a deceptive marketing method called "bundling". Developers often include PUAs in the setups of other software, however, not all people notice offers to download or install this additional software. The offers are usually hidden in settings such as "Custom", "Advanced", and so on. People who leave the settings unchanged grant permission for PUAs to be downloaded/installed together with regular software.

How to avoid installation of potentially unwanted applications

Check all settings available in the download or installation setup. Check "Custom", "Advanced", "Manual", and other similar settings and deselect offers to download or install additional software. Avoid downloading software from untrustworthy, unofficial websites, using torrent clients, eMule and other Peer-to-Peer networks, and other sources of this type. Download files and software from official web pages and through direct download links. Do not trust or click intrusive ads, especially if they are shown on dubious websites. These can cause redirects to potentially malicious sites or start unwanted download/installation processes. To prevent unwanted redirects and intrusive ads, remove all suspicious, unwanted apps (extensions, plug-ins, add-ons) installed on the browser. Also remove programs of this type installed on the computer/operating system. 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 the lp.macapps-optimize[.]club pop-up:

IMMEDIATE ACTION REQUIRED !

You Mac OS might be infected.

Press OK to begin the repair process.

Screenshot of the main lp.macapps-optimize[.]club page:

lp.macapps-optimize.club main page

Text in this page:

Your OS High Sierra is infected with (3) viruses!
Your OS High Sierra is infected with (3) viruses. Our security check found traces of 2 malware and 1 phishing/spyware. System damage: 28.1% - Immediate removal required!
The immediate removal of the viruses is required to prevent further system damage, loss of Apps, Photos or other files. Traces of 1 phishing/spyware were found on your OS High Sierra with.
Personal and banking information are at risk.
To avoid more damage click on 'Scan Now' immediately. Our deep scan will provide help immediately!
4 minutes and seconds 34 remaining before damage is permanent.Scan Now

Appearance of lp.macapps-optimize[.]club scam (GIF):

lpmacapps-appearance

Smart Mac Booster installer:

Smart Mac Booster installer

Smart Mac Booster app:

Smart Mac Booster unwanted application

Instant automatic Mac malware removal: 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 Mac malware. 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. To use full-featured product, you have to purchase a license for Combo Cleaner. Limited three days free trial available.

Quick menu:

Video showing how to remove unwanted application promoted via lp.macapps-optimize[.]club website 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 lp.macapps-optimize.club pop-up 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.

lp.macapps-optimize.club pop-up removal from Internet browsers:

safari browser iconRemove malicious extensions from Safari:

Remove lp.macapps-optimize.club pop-up 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 lp.macapps-optimize.club pop-up 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 lp.macapps-optimize.club pop-up 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 malware activity level today:

Medium threat activity

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

QR Code
lp.macapps-optimize.club pop-up 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 lp.macapps-optimize.club pop-up on your mobile device.
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