Meumnomen.com is a browser hijacker that forcibly redirects your web traffic through its own search portal, generating advertising revenue while degrading your browsing experience. This persistent threat modifies your browser settings without permission, changes your default search engine and homepage, and resists typical removal attempts by re-installing itself through browser extensions or scheduled tasks. While not as destructive as ransomware or data-stealing trojans, browser hijackers like Meumnomen.com expose you to potentially malicious advertisements, track your search queries, and can serve as a gateway for additional unwanted software.
Threat Profile
| Attribute | Details |
|---|---|
| Family | Browser Hijacker / Redirect Malware |
| Aliases | Meumnomen redirect, Meumnomen.com virus, search.meumnomen.com |
| Platform | Windows (all versions); occasionally targets macOS via browser extensions |
| Discovered | First reported variants circa 2018–2019 |
| Distribution | Software bundles, fake update prompts, malicious browser extensions, pay-per-install networks |
| Persistence Mechanisms | Browser extensions, scheduled tasks, registry Run keys, policy overrides (Chrome/Edge) |
| Primary Capabilities | Homepage/search hijacking, ad injection, search query redirection, browser setting manipulation |
| Data Collection | Search queries, browsing history, clicked links (typical for hijacker monetization) |
| Network Behavior | HTTPS connections to meumnomen.com and affiliate ad networks; may redirect through intermediary domains |
| Payload Delivery | Often delivered alongside PUPs (potentially unwanted programs) and adware |
| Typical File Locations | %LOCALAPPDATA%, %APPDATA%, browser extension directories |
| Removal Difficulty | Moderate — persists through multiple browser mechanisms; manual removal requires registry and task scheduler cleanup |
How It Spreads
Meumnomen.com infiltrates systems primarily through deceptive software bundling — a practice where legitimate-looking free programs include "optional offers" that are pre-checked during installation. Most users click through setup wizards using the "Express" or "Recommended" installation options without realizing they've just agreed to install browser hijackers, toolbars, and other unwanted modifications. The hijacker's authors pay software distribution networks to bundle their code with popular downloads like PDF converters, video players, download managers, and utility programs.
Fake update notifications represent another common infection vector. You might encounter a convincing pop-up claiming your Flash Player, Java, or browser needs an urgent security update. Clicking "Update Now" downloads an installer that includes Meumnomen.com alongside the promised software (or instead of it entirely). These fake update pages often mimic legitimate vendor designs closely enough to fool users who aren't specifically watching for warning signs.
Additional distribution methods include:
- Malicious browser extensions — seemingly useful add-ons from unofficial sources that include hijacker code or download it after installation
- Compromised websites — legitimate sites that have been hacked to serve malicious JavaScript that exploits browser vulnerabilities or socially engineers installation
- Torrent and peer-to-peer downloads — cracked software, game mods, and pirated content frequently bundle browser hijackers as secondary payloads
- Email attachments with embedded installers — documents or archives that claim to contain invoices, shipping notifications, or other urgent business content
- Search engine poisoning — fake download sites ranking highly for popular software searches, offering "official" installers that are actually bundled with hijackers
What It Does On Your Machine
Once installed, Meumnomen.com immediately seizes control of your browser configuration. It changes your default homepage to search.meumnomen.com or a variant domain, redirects your default search engine queries through its own portal, and modifies the new tab page to display its search interface. These changes occur across all major browsers — Chrome, Edge, Firefox, and others — often simultaneously. When you attempt to search using your address bar, your query gets routed through Meumnomen.com's servers before being passed along to a legitimate search engine like Bing or Google, allowing the hijacker operators to log your searches and inject their own ads into the results.
The persistence mechanisms are particularly aggressive. The hijacker doesn't just change your browser settings once — it actively monitors and re-applies those settings whenever you try to change them back. This happens through a combination of browser extensions with elevated permissions, Windows scheduled tasks that run periodically to check and restore hijacker configurations, and registry keys that override user preferences. Some variants install policy files that tell your browser to ignore manual setting changes, making it appear as though your reset attempts simply don't work.
Beyond the obvious annoyance factor, browser hijackers create real security risks. The redirects expose you to advertising networks with minimal content filtering, meaning you're more likely to encounter scam ads, fake tech support warnings, or malicious downloads disguised as legitimate software updates. The hijacker tracks which searches you perform, which results you click, and which sites you visit — data that gets monetized by selling it to advertising brokers or using it for targeted scam campaigns. Some variants serve as distribution platforms for additional unwanted software, using their position in your browser to download and install more aggressive threats.
Manual Removal — Step by Step
Disconnect from the network
Unplug your Ethernet cable or disable Wi-Fi. This prevents the hijacker from receiving commands, downloading additional components, or re-installing itself from cloud sources during the cleanup process. Work offline until you've completed all removal steps and verified the threat is gone.
Boot into Safe Mode with Networking
Restart your computer and press F8 (or Shift+F8 on newer systems) before Windows loads. Select "Safe Mode with Networking" from the boot options menu. Safe Mode loads only essential drivers and services, which prevents most hijacker persistence mechanisms from activating and makes removal significantly easier. On Windows 10/11, you can also access this through Settings → Update & Security → Recovery → Advanced startup.
Remove suspicious programs via Control Panel
Open Control Panel → Programs and Features (or Add/Remove Programs). Sort by installation date and look for unfamiliar entries installed around the time you first noticed the hijacker. Remove anything suspicious, particularly programs you don't recognize that were installed the same day as "optional" software you deliberately downloaded. Common bundled names include variations on "Search Manager," "Browser Helper," or the hijacker name itself.
Delete scheduled tasks
Press Windows+R, type taskschd.msc, and press Enter to open Task Scheduler. Click "Task Scheduler Library" and examine all scheduled tasks for suspicious entries—especially those configured to run at logon or periodically throughout the day. Look for task names referencing "Meumnomen," "Update," or random character strings pointing to executables in %LOCALAPPDATA% or %APPDATA%. Right-click suspicious tasks, select Delete, and confirm.
Clean registry Run keys and policies
Press Windows+R, type regedit, and press Enter (confirm the UAC prompt). Navigate to HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run and HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run. Look for entries pointing to executables in temporary directories or with unfamiliar names. Delete suspicious values. Also check HKEY_CURRENT_USER\Software\Policies\ and HKEY_LOCAL_MACHINE\SOFTWARE\Policies\ for browser-related subkeys that might enforce hijacker settings—delete entire policy keys related to Chrome, Edge, or Firefox if they enforce homepage/search settings you didn't configure.
Remove malicious browser extensions
Open each browser you use. In Chrome/Edge, go to the menu → Extensions → Manage Extensions. In Firefox, click the menu → Add-ons and Themes → Extensions. Carefully review all installed extensions and remove anything you don't recognize or didn't deliberately install. Browser hijackers often use generic names like "Helper," "Manager," or "Secure Search." Even if an extension seems legitimate, remove it if it was installed around the same time the hijacking began—you can always reinstall genuine extensions later.
Reset browser settings to defaults
In Chrome/Edge: Settings → Reset settings → Restore settings to their original defaults. In Firefox: Help → More troubleshooting information → Refresh Firefox. This removes the hijacker's homepage and search engine configurations, clears startup pages, and disables remaining extensions. You'll need to reconfigure your legitimate preferences afterward, but this ensures no hijacker settings remain hidden in preference files.
Delete leftover program files
Open File Explorer and navigate to %LOCALAPPDATA% (paste this into the address bar and press Enter). Look for folders with suspicious names or folders you don't recognize. Delete the entire Meumnomen folder if present, along with any other directories containing executables that match names from the scheduled tasks or registry entries you removed. Repeat for %APPDATA% and %PROGRAMFILES%.
Run a reputable anti-malware scanner
Reconnect to the internet and download Malwarebytes Free (from malwarebytes.com—verify the URL carefully). Install it, update the definitions, and run a full Threat Scan. Malwarebytes specifically targets PUPs and browser hijackers that traditional antivirus often misses. Quarantine everything it finds. Consider also running a scan with your existing antivirus with up-to-date definitions as a second opinion.
Reboot and verify cleanup
Restart your computer normally (not Safe Mode). Open your browsers and verify that your homepage, search engine, and new tab page are no longer hijacked. Search for something and confirm you're not being redirected through unfamiliar domains. Check Task Manager (Ctrl+Shift+Esc) for suspicious processes. Monitor your browser behavior for the next few days—if hijacking returns, a persistence mechanism may have survived, and professional removal may be necessary.
Prevention
- Always choose Custom/Advanced installation when installing free software. Read each screen carefully and uncheck any pre-selected offers for toolbars, browser changes, or "recommended" additional software. Legitimate programs don't hide their bundled content—if the installer makes it difficult to decline extras, that's a red flag to abort the installation entirely.
- Download software only from official vendor websites, never from third-party download portals, torrent sites, or search result ads. Sites like Download.com, Softonic, and similar aggregators frequently repackage installers with bundled hijackers. When searching for software, scroll past sponsored results and click through to the actual developer's domain.
- Keep your browser and operating system updated with the latest security patches. Enable automatic updates for Windows, your browser, and browser extensions. Many hijackers exploit outdated software vulnerabilities to install themselves without obvious user interaction.
- Install an ad blocker with malware domain filtering such as uBlock Origin. This blocks many of the fake update pages and malicious ad networks that distribute browser hijackers. Configure it to use additional filter lists targeting known malware domains.
- Review installed browser extensions monthly. Remove anything you no longer use or don't remember installing. Grant permissions conservatively—if a weather extension asks for permission to "read and change all your data on the websites you visit," that's excessive and suspicious.
- Be skeptical of urgent update notifications that appear as pop-ups on web pages rather than coming from Windows Update or your browser's built-in updater. Legitimate software updates don't require you to download and run installers from random websites. When in doubt, close the page and manually check for updates through official channels.
- Run periodic scans with Malwarebytes or similar tools specifically designed to catch PUPs and hijackers. Schedule a monthly quick scan even if you haven't noticed problems—catching these threats early makes removal vastly simpler.
- Maintain current backups of your important data to an external drive or cloud service. While browser hijackers aren't typically destructive like ransomware, having backups means you can confidently perform aggressive cleanup measures like full browser resets or even Windows reinstallation if necessary without losing critical files.
When Computer Repair Roswell removes malware from your machine, we stand behind our work with a comprehensive 90-day warranty. If the same threat returns within three months—or if we missed any components during the initial cleaning—we'll fix it at no additional charge. We don't just delete the visible infection; we identify and eliminate every persistence mechanism, verify system integrity, and ensure your machine is genuinely clean before you take it home.
Bring It In
Browser hijackers like Meumnomen.com seem simple on the surface, but their persistence mechanisms can be surprisingly stubborn—especially when they've been on your system for weeks or months and have layered multiple reinstallation methods. If you've followed the manual removal steps above and the hijacking persists, or if you'd simply rather have professionals handle it quickly and thoroughly, we're here to help. Our technicians see these infections daily and can typically complete a full removal in 30–60 minutes using specialized tools and techniques that go beyond what manual methods can achieve.
Computer Repair Roswell is located right here in Roswell, Georgia, and we handle both PC and Mac malware removal with same-day or next-day turnaround in most cases. Call us at (770) 637-1433 to describe your symptoms and get an immediate assessment, or stop by our shop with your machine—no appointment necessary for drop-offs. We'll diagnose the infection, quote you a flat-rate price (no surprises), and have you back to safe browsing faster than you'd spend wrestling with registry editors and task schedulers on your own. Don't let a browser hijacker continue tracking your searches and exposing you to malicious ads—let's get it handled properly today.