Stop being scammed by Badmonday

Also Known As: Badmonday pop-up
Type: Mac Virus
Distribution: Low
Damage level: Medium

How to remove "Badmonday" from Mac computers

What is "Badmonday"?

Badmonday is a family of deceptive/scam websites, which operate using scare tactics to trick people into installing untrustworthy applications. This variation promotes Smart Mac Booster, which is classified as a Potentially Unwanted Application (PUA). Badmonday warns visitors of viruses it has detected on the MacOS (Mac Operating System) and offers Smart Mac Booster for removal. Note that no website can detect threats/issues on devices. Therefore, any problem alerts displayed by these sites are fake. Websites displaying these messages cannot be trusted - do not download or install software advertised on them. Applications endorsed by deceptive sites are often bogus and nonfunctional. Most visitors to Badmonday access it inadvertently - they are redirected by PUAs already present on the system.

Badmonday scam

Visitors to Badmonday first see a pop-up window. The message in the window claims that a website the user visited earlier infected the MacOS with a virus. When this window is closed, another web page is displayed, which repeats the initial claim and adds that a full system scan is necessary to find and eliminate the dangerous applications/files. To further give the impression of legitimacy, device details are listed (brand, OS version, browser, IP address, internet provider and location). Pressing "Scan Now" initiates a fake scan, which 'finds' a virus called "Bankworm". Badmonday recommends Advanced Mac Cleaner as an app for the removal of "Bankworm". In fact, the "REMOVE VIRUS NOW" button leads to the download site of the Smart Mac Booster PUA. From this process, the maccleaner.pkg file is downloaded, which is known to spread unwanted applications. Apps similar to Smart Mac Booster (for example, MacCleanseProK9-MacOptimizerMac Fixer Pro, and many others) often require activation to become operational (require purchase). Despite any purchase made, however, they rarely work as advertised and in most cases remain nonoperational. You are strongly advised against downloading/installing maccleaner.pkg, Smart Mac Booster, or any other suspicious content.

PUAs may seem legitimate and tempt users to install by offering a wide variety of features. These features are nonfunctional. The only purpose of PUAs is to generate revenue for the developers. Regular users receive no value. PUAs cause many issues and pose a threat to device/user safety. They force-open sale-oriented, untrustworthy, compromised, deceptive/scam and even malicious websites. Unwanted apps can also run intrusive advertisement campaigns (pop-ups, banners, surveys, etc.) and hijack browsers. Some have data tracking capabilities and record browsing activity (browsing, search engine histories) and gather users' personal information (IP addresses, geolocations, and other details). This sensitive data is then shared with third parties (potentially, cyber criminals) intent on misusing for financial gain. To summarize, PUAs can cause browser/system infiltration and infections and lead to serious privacy issues, financial loss and even identity theft. To protect your system from these risks, remove all dubious applications and browser extensions/plug-ins without delay.

Threat Summary:
Name Badmonday pop-up
Threat Type Mac malware, Mac virus.
Fake Claim The error message alerts that the system is infected/damaged and encourages users to download a system cleaning tool.
Detection Names Kaspersky (Malware), Fortinet (Spam), Spamhaus (Spam), Full List (VirusTotal)
Serving IP Address 176.119.1.201
Related Domains Full list below.
Promoted Unwanted Application Smart Mac Booster
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.

Scam websites are very common and most share certain traits. FirdayfunWenfuntoday, and Funnytues are some examples of deceptive web page families identical to Badmonday. These sites typically use various scare tactics to trick users into downloading/installing and/or purchasing the software they advertise. The promoted applications are often bogus and nonfunctional. Scam websites are mostly entered through redirects generated by PUAs or intrusive advertisements.

How did potentially unwanted applications install on my computer?

The main mode of PUA proliferation is via the download/install set-ups of other software. "Bundling" is the term used to describe this deceptive marketing method of packing regular products with unwanted content. Rushing download/installation processes (e.g. ignoring terms, skipping steps, etc.) increases the risk of potential system infiltration and infections. Certain apps of this kind also possess "official" download web pages (including Smart Mac Booster). Intrusive ads are also known to proliferate PUAs. Once clicked, they execute scripts to download/install unwanted applications without users' permission.

How to avoid installation of potentially unwanted applications

Research content, before downloading/installing. Use trustworthy and verified download channels. Peer-to-Peer sharing networks (BitTorrent, eMule, Gnutella, etc.), unofficial and free file-hosting sites, third party downloaders and similar sources are classed as untrustworthy and should not be used. Treat download and installation processes with caution. Read the terms, explore all possible options, use the "Custom/Advanced" settings, and opt-out of downloading/installing supplementary apps, tools, features, etc. Despite being commonly hosted by compromised web pages, intrusive advertisements often seem legitimate and harmless, however, they can redirect to dubious websites (e.g. pornography, adult-dating, gambling and others). If you experience ads/redirects of this type, inspect the device and immediately remove all suspicious applications and/or browser extensions/plug-ins. 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 pop-up window:

VIRUS FOUND

A website you visited today has infected your Mac with a virus.

Press OK to begin the repair process.

Screenshot of the second web page displayed by Badmonday:

Badmonday  second page

Text presented in this page:

VIRUS FOUND
A website you have visited today has infected your Mac with a virus. A full system scan is now required to find and remove harmful files or applications from your Mac OS X 10_13_6 device.
DEVICE INFORMATION
Brand: Apple
Device: Mac OS X 10_13_6
Browser: Safari 12.0.1
IP: 85.206.10.62
Provider: Telia Lietuva, AB
Location: - LT
Scan Now

Screenshot of the fake scan:

Badmonday fake scan

Text presented in this page:

DOWNLOAD REQUIRED
Please download the Advanced Mac Cleaner application to remove Bankworm from your Mac.
VIRUS INFORMATION
Virus Name: Bankworm
Risk: HIGH
Infected File: /os/apps/worm.icv
VIRUS REMOVAL
Application: Advanced Mac Cleaner
Rating: 9.9/10
Price: Free
REMOVE VIRUS NOW

Appearance of Badmonday scam (GIF):

Appearance of Badmonday scam (GIF)

List of domains related to the Badmonday scam website family:

badmonday1[.]live badmonday30[.]live badmonday58[.]live
badmonday10[.]live badmonday39[.]live badmonday61[.]live
badmonday110[.]live badmonday41[.]live badmonday66[.]live
badmonday112[.]live badmonday44[.]live badmonday69[.]live
badmonday117[.]live badmonday45[.]live badmonday70[.]live
badmonday120[.]live badmonday46[.]live badmonday76[.]live
badmonday16[.]live badmonday49[.]live badmonday79[.]live
badmonday17[.]live badmonday52[.]live badmonday89[.]live
badmonday21[.]live badmonday55[.]live badmonday93[.]live
badmonday23[.]live badmonday57[.]live badmonday96[.]live

Screenshot of Smart Mac Booster installation set-up:

Badmonday installer

Screenshot of the Smart Mac Booster application:

Badmonday app

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 adware and browser hijackers from a Mac computer:

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 badmonday 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.

Badmonday pop-up removal from Internet browsers:

safari browser iconRemove malicious extensions from Safari:

Remove badmonday 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 badmonday 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 badmonday 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
Badmonday 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 Badmonday pop-up on your mobile device.
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Platform: macOS

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