How to remove LoginCheck adware and the adverts it displays

What is LoginCheck?

LoginCheck is a piece of rogue software our research team discovered while inspecting new submissions to VirusTotal. After inspecting this app, we determined that LoginCheck works as advertising-supported software (adware) and belongs to the AdLoad malware family.

LoginCheck adware overview

LoginCheck might not display advertisements if the browser/system or user geolocation are incompatible, specific websites are not visited, or similar. However, adware endangers device and user safety, regardless of whether it delivers ads.

Adware-displayed adverts primarily promote unreliable/harmful webpages and software, online scams, and even malware. Furthermore, some intrusive advertisements are capable of downloading/installing software without user consent - once clicked on.

Note that any legitimate products encountered via these ads are unlikely to be endorsed by their actual developers. Instead, this promotion is undertaken by scammers abusing the products' affiliate programs to obtain illegitimate commissions.

What is more, LoginCheck might have browser hijacker qualities as they are standard for AdLoad adware, although it did not exhibit any during our analysis.

Advertising-supported typically has data tracking abilities, and this may apply to LoginCheck. Targeted information can include: browsing-related data, personally identifiable details, usernames/passwords, credit card numbers, etc. The gathered information is then shared with and/or sold to third-parties (potentially, cyber criminals).

In summary, the presence of software like LoginCheck on devices can result in system infections, serious privacy issues, financial losses, and identity theft.

Threat Summary:

Name	Ads by LoginCheck
Threat Type	Adware, Mac malware, Mac virus
Detection Names	Avast (MacOS:AdAgent-AW [Adw]), Combo Cleaner (Adware.MAC.Generic.26281), ESET-NOD32 (A Variant Of OSX/Adware.Synataeb.G), Kaspersky (Not-a-virus:HEUR:AdWare.OSX.Searchpr), Full List (VirusTotal)
Additional Information	This application belongs to Adload malware family.
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 seven days free trial available. Combo Cleaner is owned and operated by Rcs Lt, the parent company of PCRisk.com read more.

Adware examples

We have analyzed thousands of adware samples; GenerateExplorer, DataCharacter, DynamicInterface, and SystemWalk are just some examples of our newest finds. This software usually appears legitimate and offers "useful" features. However, the promised functions are rarely operational.

How did LoginCheck install on my computer?

The bundling marketing technique - packing regular program installers with unwanted/malicious supplements - is commonly used to proliferate adware. Download from untrustworthy sources (e.g., unofficial and free file-hosting websites, P2P sharing networks, etc.) and rushed installations - increase the risk of allowing bundled content into the device.

Fake Adobe Flash Player updaters/installers are used in distribution as well. Advertising-supported software can also have "official" promotional or deceptive download webpages. Most users enter such pages via redirects caused by mistyped URLs, sites that use rogue advertising networks, spam browser notifications, intrusive adverts, or installed adware (with webpage force-opening capabilities).

This software is likewise spread through intrusive advertisements. Some of these ads can be triggered (by being clicked) to execute scripts to make downloads/installations without user permission.

How to avoid installation of adware?

We highly recommend researching software products and only using official/verified download channels. Additionally, installation processes must be treated with care. Therefore, we advise reading terms, inspecting available options, using the "Custom" or "Advanced" settings, and opting-out of all supplements.

Another recommendation is to be vigilant while browsing - since illegitimate and malicious material usually appears legitimate. For example, intrusive adverts look harmless - however, they redirect to unreliable/questionable websites (e.g., adult-dating, pornography, gambling, etc.).

If you encounter advertisements/redirects of this kind, check the device and immediately remove all suspect applications and browser extensions/plug-ins. If your computer is already infected with LoginCheck, we recommend running a scan with Combo Cleaner Antivirus for macOS to automatically eliminate this adware.

Pop-up window displayed once LoginCheck adware's installation is over:

LoginCheck adware's installation folder:

Instant automatic Mac malware removal: Manual threat removal might be a lengthy and complicated process that requires advanced IT 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 seven days free trial available. Combo Cleaner is owned and operated by Rcs Lt, the parent company of PCRisk.com read more.

Quick menu:

• What is LoginCheck?
• STEP 1. Remove LoginCheck related files and folders from OSX.
• STEP 2. Remove LoginCheck ads from Safari.
• STEP 3. Remove LoginCheck adware from Google Chrome.
• STEP 4. Remove LoginCheck ads from Mozilla Firefox.

Video showing how to remove LoginCheck adware using Combo Cleaner:

LoginCheck adware removal:

Remove LoginCheck-related potentially unwanted applications from your "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 adware-related files and folders

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

Check for adware generated files in the /Library/LaunchAgents/ folder:

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

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 exact same string.

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

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

In the "Application Support" folder, look for any recently-added suspicious folders. For example, "MplayerX" or "NicePlayer", and move these folders to the Trash.

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

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

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 exact same string.

Check for adware generated files in the /Library/LaunchDaemons/ folder:

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

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.

Scan your Mac with Combo Cleaner:

If you have followed all the steps correctly, your Mac should be clean of infections. To ensure 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 the 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 its virus definition database and click the "Start Combo Scan" button.

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.

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

Remove malicious extensions from Internet browsers

Remove malicious Safari extensions:

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

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 regular browser operation.

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

Remove malicious extensions from Google Chrome:

Click the Chrome menu icon (at the top right corner of Google Chrome), select "More Tools" and click "Extensions". Locate all recently-installed suspicious extensions, select these entries and click "Remove".

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

Remove malicious extensions from Mozilla Firefox:

Click the Firefox menu (at the top right corner of the main window) and select "Add-ons and themes". Click "Extensions", in the opened window locate all recently-installed suspicious extensions, click on the three dots and then click "Remove".

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

Frequently Asked Questions (FAQ)

What harm can adware cause?

Adware can decrease browsing quality and system performance. Software within this classification typically has data tracking abilities, which also make it a privacy threat. Furthermore, adware-delivered advertisements promote deceptive/malicious content that may cause severe issues (e.g., financial losses, system infections, etc.).

What does adware do?

Adware stands for advertising-supported software. It is designed to enable the placement of various adverts on visited websites and/or other interfaces. This software may be capable of force-opening sites and collecting private information as well.

How do adware developers generate revenue?

Adware generates revenue through affiliate programs by promoting websites, apps, products, services, and similar.

Will Combo Cleaner remove LoginCheck adware?

Yes, Combo Cleaner can scan computers and eliminate installed adware-type applications. It has to be mentioned that manual removal (unaided by security programs) might not be a perfect solution. Since, even if the software itself has been removed - various file leftovers might remain in the system. Additionally, such components may continue running and causing problems. Therefore, it is paramount to eliminate adware thoroughly.

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