What is check-this-message[.]one?
Check-this-message[.]one is a rogue site designed to load dubious material and/or redirect visitors to other untrustworthy and malicious webpages. The Internet is rife with such websites; brokenbad.biz, sweetadvance.ru, watch-this-viral.video, antom.xyz - are just some examples.
Users seldom intentionally access rogue pages. Most get redirected to them by suspect sites, intrusive advertisements, or installed PUAs (Potentially Unwanted Applications). These apps can be installed onto devices without explicit permission and force-open webpages, run intrusive ad campaigns, and collect browsing data.
Check-this-message[.]one in detail
The behavior of check-this-message[.]one is dictated by the visitor's geolocation. The website learns this information by checking the visiting user's IP (Internet Protocol) address. Therefore, whether visitors get redirected elsewhere and/or are presented with questionable content - depends on their geolocations.
Furthermore, most rogue sites employ deceptive tactics to trick users into enabling their browser notifications. Check-this-message[.]one is not an exception to this; should its notifications be allowed - the webpage will start running intrusive advertisement campaigns.
The delivered adverts are more than just a minor annoyance, they also pose a threat to device/user safety. These advertisements endorse a wide variety of untrustworthy and malicious websites. What is more, some intrusive ads can stealthily download/install software (e.g., PUAs).
How do potentially unwanted applications operate?
Potentially unwanted applications can have different functionalities, and these functions can be in varied combinations. For example, this software can cause redirects and/or deliver intrusive advertisement campaigns. PUAs usually have data tracking abilities.
Information of interest includes (but is not limited to): URLs visited, webpages viewed, search queries typed, IP addresses/ geolocations, and personally identifiable details. The gathered data is then shared with and/or sold to third-parties (potentially, cyber criminals).
In summary, the presence of unwanted apps on devices can lead to system infections, severe privacy issues, financial losses, and even identity theft. To ensure device integrity and user privacy, all suspect applications and browser extensions/plug-ins must be eliminated immediately upon detection.
|Threat Type||Push notifications ads, Unwanted ads, Pop-up ads|
|Detection Names||N/A (VirusTotal)|
|Observed Domains||rp9lp.check-this-message[.]one; mufkl.check-this-message[.]one; 1kuf2.check-this-message[.]one; dhapj.check-this-message[.]one; lpr2h.check-this-message[.]one; aevon.check-this-message[.]one; juwg7.check-this-message[.]one; 9lkug.check-this-message[.]one; c9pwm.check-this-message[.]one; hm0qi.check-this-message[.]one; r4u5j.check-this-message[.]one; pjv3w.check-this-message[.]one; jfcjw.check-this-message[.]one; etc.|
|Symptoms||Seeing advertisements not originating from the sites you are browsing. Intrusive pop-up ads. Decreased Internet browsing speed.|
|Distribution Methods||Deceptive pop-up ads, potentially unwanted applications (adware)|
|Damage||Decreased computer performance, browser tracking - privacy issues, possible additional malware infections.|
|Malware Removal (Windows)||
To eliminate possible malware infections, scan your computer with legitimate antivirus software. Our security researchers recommend using Combo Cleaner.
Potentially unwanted applications in general
PUAs appear ordinary and harmless. These applications also offer "handy" features, which are seldom operational. The only goal of unwanted software is to generate revenue for the developers; hence, functionality and user safety are irrelevant. PUAs are designed to force-open pages, run intrusive ad campaigns, and gather private data.
How did adware install on my computer?
PUAs are distributed via download/installation setups of other programs. This false marketing tactic of packing regular software with unwanted or malicious additions - is termed "bundling". Rushed downloads/installations (e.g., skipped steps, used pre-set options, etc.) increase the risk of allowing bundled content into the system.
Intrusive advertisements are used to spread PUAs as well. Once clicked on, the ads can execute scripts to download/install these applications without user consent. Some PUAs may also have "official" promotional sites from which they can be downloaded and/or purchased.
How to avoid installation of potentially unwanted applications?
It is recommended to research software before download/installation. Additionally, all downloads must be performed from official and verified sources. Untrustworthy download channels, e.g., unofficial and free file-hosting websites, Peer-to-Peer sharing networks, and other third-party downloaders - often offer bundled and harmful content.
When downloading/installing, it is advised to read terms, study available options, use the "Custom/Advanced" settings to opt-out from additional apps, tools, functions, etc. Intrusive adverts appear legitimate; however, they redirect to various questionable sites (e.g., pornography, adult-dating, gambling, and so on).
In case of encounters with ads and/or redirects of this kind, the system must be checked and all suspicious applications and browser extensions/plug-ins detected - immediately removed from it. If your computer is already infected with rogue applications, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate them.
Screenshots of ads delivered by the check-this-message[.]one website:
Appearance of the check-this-message[.]one website (GIF):
IMPORTANT NOTE! This deceptive site asks to enable web browser notifications.
Therefore, before commencing, perform these steps:
Google Chrome (PC):
- Click the Menu button (three dots) on the right upper corner of the screen and select "Settings"
- Scroll down to the "Privacy and security" section, select "Site settings" and then "Notifications"
- Click three dots on the right hand side of each suspicious URL and select "Block" or "Remove" (if you click "Remove" and visit the malicious site once more, it will ask to enable notifications again)
Google Chrome (Android):
- Click on the Menu button (three dots) on the right upper corner of the screen and tap "Settings"
- Scroll down, tap on "Site settings" and then "Notifications"
- In the opened window, locate all suspicious URLs and tap on them one-by-one
- Once the pop-up shows up, select either "Block" or "Remove" (if you tap "Remove" and visit the malicious site once more, it will ask to enable notifications again)
- Click the Menu button (three bars) on the right upper corner of the screen
- Select "Settings" and click on "Privacy & Security" in the toolbar on the left hand side of the screen
- Scroll down to the "Permissions" section and click the "Settings" button next to "Notifications"
- In the opened window, locate all suspicious URLs and block them using the drop-down menu or either remove them by clicking "Remove Website" at the bottom of the window (if you click "Remove Website" and visit the malicious site once more, it will ask to enable notifications again)
- Click the menu button (three dots) on the right upper corner of the Edge window and select "Settings"
- Click on "Cookies and site permissions" in the toolbar on the left hand side of the screen and select "Notifications"
- Click three dots on the right hand side of each suspicious URL under "Allow" section and click "Block" or "Remove" (if you click "Remove" and visit the malicious site once more, it will ask to enable notifications again)
- Click "Safari" button on the left upper corner of the screen and select "Preferences..."
- Select the "Websites" tab and then select "Notifications" section on the left pane
- Check for suspicious URLs and apply the "Deny" option using the drop-down menu or either remove them by clicking "Remove" at the bottom of the window (if you click "Remove" and visit the malicious site once more, it will ask to enable notifications again)
Instant automatic 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 malware. Download it by clicking the button below:
- What is check-this-message[.]one?
- STEP 1. Uninstall adware applications using Control Panel.
- STEP 2. Remove rogue plug-ins from Google Chrome.
- STEP 3. Remove adware-type extensions from Mozilla Firefox.
- STEP 4. Remove malicious extensions from Safari.
- STEP 5. Remove rogue plug-ins from Microsoft Edge.
Windows 11 users:
Right-click on the Start icon, select Apps and Features. In the opened window search for the application you want to uninstall, after locating it, click on the three vertical dots and select Uninstall.
Windows 10 users:
Right-click in the lower left corner of the screen, in the Quick Access Menu select Control Panel. In the opened window choose Programs and Features.
Windows 7 users:
Click Start (Windows Logo at the bottom left corner of your desktop), choose Control Panel. Locate Programs and click Uninstall a program.
macOS (OSX) users:
Click Finder, in the opened screen select Applications. Drag the app from the Applications folder to the Trash (located in your Dock), then right click the Trash icon and select Empty Trash.
In the uninstall programs window, look for any potentially unwanted applications, select these entries and click "Uninstall" or "Remove".
After uninstalling the potentially unwanted application that causes check-this-message[.]one redirects, scan your computer for any remaining unwanted components or possible malware infections. To scan your computer, use recommended malware removal software.
Remove adware from Internet browsers:
Video showing how to remove potentially unwanted browser add-ons:
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 browser add-ons and remove them.
If you continue to have problems with removal of the check-this-message.one pop-up, reset your Google Chrome browser settings. Click the Chrome menu icon (at the top right corner of Google Chrome) and select Settings. Scroll down to the bottom of the screen. Click the Advanced… link.
After scrolling to the bottom of the screen, click the Reset (Restore settings to their original defaults) button.
In the opened window, confirm that you wish to reset Google Chrome settings to default by clicking the Reset button.
Remove malicious plug-ins from Mozilla Firefox:
Click the Firefox menu (at the top right corner of the main window), select "Add-ons". Click "Extensions", in the opened window, remove all recently-installed suspicious browser plug-ins.
Computer users who have problems with check-this-message.one pop-up removal can reset their Mozilla Firefox settings.
Open Mozilla Firefox, at the top right corner of the main window, click the Firefox menu, in the opened menu, click Help.
Select Troubleshooting Information.
In the opened window, click the Refresh Firefox button.
In the opened window, confirm that you wish to reset Mozilla Firefox settings to default by clicking the Refresh Firefox button.
Remove malicious extensions from Safari:
Make sure your Safari browser is active, click Safari menu, and select Preferences....
In the opened window click Extensions, locate any recently installed suspicious extension, select it and click Uninstall.
Make sure your Safari browser is active and click on Safari menu. From the drop down menu select Clear History and Website Data...
In the opened window select all history and click the Clear History button.
Remove malicious extensions from Microsoft Edge:
Click the Edge menu icon (at the upper-right corner of Microsoft Edge), select "Extensions". Locate all recently-installed suspicious browser add-ons and click "Remove" below their names.
If you continue to have problems with removal of the check-this-message.one pop-up, reset your Microsoft Edge browser settings. Click the Edge menu icon (at the top right corner of Microsoft Edge) and select Settings.
In the opened settings menu select Reset settings.
Select Restore settings to their default values. In the opened window, confirm that you wish to reset Microsoft Edge settings to default by clicking the Reset button.
- If this did not help, follow these alternative instructions explaining how to reset the Microsoft Edge browser.
Commonly, adware or potentially unwanted applications infiltrate Internet browsers through free software downloads. Note that the safest source for downloading free software is via developers' websites only. To avoid installation of adware, be very attentive when downloading and installing free software. When installing previously-downloaded free programs, choose the custom or advanced installation options – this step will reveal any potentially unwanted applications listed for installation together with your chosen free program.
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