What is onemacusa[.]com?
Similar to dnsvibes.co, othemyinetere.space, s1-n.com, totaltopposts.com, and thousands of others, onemacusa[.]com is a rogue site that presents visitors with questionable content, pushes its browser notifications, and/or redirects users to various (likely unreliable/malicious) websites.
Rogue pages are typically accessed via redirects caused by untrustworthy sites, intrusive adverts, or installed PUAs (Potentially Unwanted Applications).
Onemacusa[.]com in detail
The behavior of onemacusa[.]com is determined by its visitors' geolocations, which the website learns from their IP addresses. In other words, this information dictates whether visitors are presented with dubious material and/or get redirected elsewhere.
Onemacusa[.]com also uses fake CAPTCHA verification to trick users into allowing its browser notifications. Nearly all rogue webpages use deceptive content/instructions for this purpose. Should the notifications be allowed, onemacusa[.]com will start running intrusive advertisement campaigns.
The displayed adverts endorse suspect and malicious websites. Furthermore, some intrusive ads can infiltrate software (e.g., PUAs) into systems - when they are clicked on.
|Threat Type||Push notifications ads, Unwanted ads, Pop-up ads|
|Detection Names||Forcepoint ThreatSeeker (Suspicious), Full List Of Detections (VirusTotal)|
|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 application overview
PUAs appear legitimate and offer "handy" functionalities, which are usually nonoperational. However, unwanted apps can have harmful abilities, e.g., force-opening pages, running intrusive ad campaigns, hijacking browsers, and collecting sensitive data. To summarize, PUAs can cause system infections, severe privacy issues, financial losses, and even lead to identity theft.
How did adware install on my computer?
PUAs are spread using the "bundling" method - packing ordinary programs with unwanted or malicious additions. Rushed downloads/installations increase the risk of allowing bundled content into the device. Intrusive adverts are also used to proliferate PUAs. Once clicked on, the ads can execute scripts to make downloads/installations without user consent. Some PUAs have "official" promotional/download webpages.
How to avoid installation of potentially unwanted applications?
It is recommended to always research software download it from official/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/hazardous content.
When downloading/installing, it is advised to read terms, study possible options, and use the "Custom/Advanced" settings to opt-out from all additions. Intrusive advertisements appear harmless; however, they redirect to unreliable and dubious sites (e.g., pornography, gambling, adult-dating, etc.).
In case of encounters with such adverts and/or redirects, 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.
Screenshot of an advertisement delivered by the onemacusa[.]com website:
Appearance of the onemacusa[.]com 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 onemacusa[.]com?
- 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 onemacusa[.]com 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 onemacusa.com 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 onemacusa.com 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 onemacusa.com 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.
If you are experiencing problems while trying to remove onemacusa.com pop-up from your computer, please ask for assistance in our malware support forum.
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Frequently Asked Questions (FAQ)
Why am I seeing ads (browser notifications) delivered by onemacusa[.]com in the right lower corner of my desktop?
Websites deliver browser notifications when they are allowed to do so. Hence, it is likely that you have visited onemacusa[.]com and permitted it to display notifications. It is worth mentioning that such rogue sites are typically accessed unintentionally and use deceptive content to trick visitors into enabling their browser notifications.
I have clicked on notification ads, is my computer infected?
Clicking on a notification will not result in a system infection. However, the websites/applications endorsed through these advertisements can be malicious.
Is onemacusa[.]com a virus?
The onemacusa[.]com website is not classified as a virus, yet it may promote virulent (i.e., malware-proliferating) content. Sites of this kind often endorse various scams, untrustworthy and even malicious websites/apps.
Will Combo Cleaner remove onemacusa[.]com ads automatically or manual steps are still required?
Yes, Combo Cleaner can scan your device and remove the permissions granted to this site. It will likewise prevent further access to onemacusa[.]com. Therefore, no additional steps will be necessary.