The search.hlocalweatherradar.co browser hijacker masquerades as a helpful weather tool but serves primarily to redirect your searches through advertising networks and collect your browsing data. Users typically discover this threat when their browser's homepage and default search engine suddenly change to hlocalweatherradar.co without permission, often after installing a free weather-related application or browser extension. While not as destructive as ransomware or banking trojans, this persistent hijacker degrades your browsing experience, exposes you to potentially malicious advertising, and creates privacy concerns through aggressive data tracking.
This hijacker specifically targets Google Chrome, Mozilla Firefox, Microsoft Edge, and Safari users across Windows and macOS platforms. The underlying application—often bundled as a browser extension or standalone program—modifies browser settings at multiple levels to prevent easy removal and maintain its redirections even after users attempt to restore their preferred homepage.
Threat Profile
| Attribute | Details |
|---|---|
| Threat Classification | Browser Hijacker / Potentially Unwanted Program (PUP) |
| Aliases | HLocalWeatherRadar, Local Weather Radar Search, hlocalweatherradar redirect |
| Affected Platforms | Windows 7/8/10/11, macOS 10.12+ |
| Targeted Browsers | Chrome, Firefox, Edge, Safari |
| Distribution Method | Software bundling, deceptive advertisements, fake update prompts |
| Persistence Mechanisms | Browser extension auto-installation, managed policies (Chrome/Edge), launch agents (macOS), scheduled tasks (Windows) |
| Primary Capabilities | Search redirection, homepage hijacking, new tab replacement, browsing history collection, affiliate link injection |
| Network Behavior | Redirects through search.hlocalweatherradar.co → feed.hlocalweatherradar.co → Yahoo/Bing search with affiliate tracking parameters |
| Data Collection | Search queries, visited URLs, browser type/version, IP address, approximate geolocation |
| Revenue Model | Pay-per-click advertising, search result manipulation, affiliate commission hijacking |
| Typical Symptoms | Changed homepage/search engine, slower browser performance, unexpected redirects, increased ad volume |
| Removal Difficulty | Moderate—requires multi-location cleanup and policy resets |
How It Spreads
The hlocalweatherradar.co hijacker primarily reaches victims through software bundling—the practice of packaging unwanted programs with legitimate free software. When users download applications like video converters, PDF creators, or download managers from third-party hosting sites, the installer often includes "optional offers" that are pre-checked or obscured within "Custom" installation settings. The hijacker's installer uses deceptive language, presenting itself as a useful weather utility while burying disclosure about browser modifications in dense terms-of-service text that few users read.
Beyond bundled installers, this threat exploits users' trust in software updates. Fake update notifications—particularly counterfeit Flash Player and browser update prompts on streaming or file-sharing websites—frequently deliver the hijacker. These fake alerts mimic legitimate update interfaces closely enough to fool even cautious users. Once the victim approves the download, the hijacker installs both its browser extension and supporting executables that reapply the hijack if users remove only the extension.
Common distribution vectors include:
- Bundled freeware installers from download sites like Softonic, Download.com, or FileHippo where third-party repackaging adds the hijacker to otherwise-legitimate software
- Fake update prompts on questionable streaming sites, torrent pages, or adult content platforms claiming your Flash Player, Chrome, or video codec needs updating
- Malicious advertisements (malvertising) on compromised websites that trigger drive-by downloads when clicked or, in some cases, when simply loaded
- Email attachments disguised as weather apps, browser toolbars, or productivity utilities sent through spam campaigns
- Extension marketplaces where the hijacker briefly appears under various names before detection and removal by store moderators
- Pirated software packages where cracking tools or key generators come bundled with multiple PUPs including this hijacker
What It Does On Your Machine
Upon installation, search.hlocalweatherradar.co immediately modifies your browser configuration through multiple mechanisms designed for redundancy. It replaces your homepage, default search engine, and new tab page with hlocalweatherradar.co pages, then locks these settings using browser policy enforcement (on Chrome and Edge) or preference file manipulation (on Firefox and Safari). When you perform a search, your query routes through the hijacker's servers before eventual redirection to a legitimate search engine—but one that displays results modified with additional sponsored links that generate revenue for the hijacker's operators.
The hijacker installs browser extensions that lack visible icons, making them harder to spot in your extensions list. These extensions monitor your browsing activity continuously, collecting data about visited websites, search terms, clicked links, and time spent on various pages. This information feeds advertising profiles that enable targeted ad injection and gets sold to data brokers. On Windows systems, the hijacker typically creates scheduled tasks that periodically verify its components remain active, reinstalling the extension if you've removed it and resetting modified browser shortcuts to reapply the homepage hijack.
Beyond search redirection, the hijacker degrades system performance in noticeable ways. It injects additional advertising scripts into web pages you visit, slowing page load times and increasing bandwidth consumption. Some variants establish persistent background connections to command servers, creating network overhead and potential privacy exposure. The weather-related functionality—if present at all—serves merely as a thin veneer to justify the application's existence, typically displaying generic weather widgets pulled from legitimate free APIs while the hijacker's real work happens invisibly behind the scenes.
Manual Removal — Step by Step
Disconnect and Document
Before making changes, disconnect your machine from the internet by disabling Wi-Fi or unplugging the ethernet cable. Take screenshots of your current browser homepage and installed extensions—this documentation helps verify complete removal later. Write down any unusual browser behaviors you've noticed, as some hijacker variants install multiple components that require separate removal steps.
Close All Browser Instances Completely
Open Task Manager (Ctrl+Shift+Esc on Windows; Activity Monitor on macOS) and verify that no browser processes remain running. The hijacker sometimes launches hidden browser instances that reapply settings when you restart your browser. End all processes for Chrome, Firefox, Edge, and Safari. For Chrome specifically, look for multiple "Google Chrome" entries and terminate all of them, including background processes.
Uninstall Suspicious Programs
Open Settings > Apps (Windows 11) or Control Panel > Programs and Features (Windows 10/earlier). Sort by installation date and look for any programs installed around the time the hijacking began. Uninstall anything containing "Weather," "Radar," "HLocal," or unfamiliar publisher names. Also remove any bundled applications you don't recognize. On macOS, check Applications folder and drag suspicious items to Trash, then empty Trash while holding Option to bypass warnings.
Remove Browser Extensions
In Chrome, navigate to chrome://extensions/, enable Developer Mode (top right), and remove any extensions you didn't intentionally install—especially those without icons or with vague names. In Firefox, go to about:addons and remove suspicious extensions. For Edge, visit edge://extensions/. Safari users should check Safari > Preferences > Extensions. Don't trust extension names; the hijacker often uses names like "Weather Tool" or "Search Helper" that sound legitimate.
Reset Browser Settings
In Chrome: Settings > Reset settings > Restore settings to their original defaults. In Firefox: Help > More Troubleshooting Information > Refresh Firefox. In Edge: Settings > Reset settings > Restore settings to their default values. This clears managed policies the hijacker may have set. After resetting, manually reconfigure your preferred homepage and search engine, but wait until after completing all removal steps before doing so.
Delete Persistence Mechanisms
On Windows, open Task Scheduler (search for it in the Start menu), expand Task Scheduler Library, and delete any tasks containing "Weather," "HLocal," or unfamiliar publisher names. Next, press Win+R, type "regedit," and navigate to HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run—delete any entries pointing to HLocalWeatherRadar executables. On macOS, check ~/Library/LaunchAgents/ and /Library/LaunchAgents/ for .plist files related to the hijacker and move them to Trash.
Remove Leftover Files
Navigate to %LOCALAPPDATA% (paste into File Explorer address bar) and delete any HLocalWeatherRadar folders. Do the same for %APPDATA% and check C:\Program Files and C:\Program Files (x86). On macOS, check ~/Library/Application Support/ and /Library/Application Support/. Use Shift+Delete (Windows) or Option+Command+Delete (macOS) to bypass the Recycle Bin/Trash for immediate permanent deletion. Some variants create folders with GUID-style names—delete any recent folders with random alphanumeric names if you can't identify their purpose.
Scan with Malwarebytes
Download Malwarebytes Free from malwarebytes.com (reconnect to internet temporarily if needed, but only visit this trusted site). Install and run a full Threat Scan. Malwarebytes specifically targets PUPs and browser hijackers that traditional antivirus sometimes misses. Quarantine all detected items. If Malwarebytes finds additional components, this confirms the hijacker had multiple persistence mechanisms—all the more reason the manual steps above were necessary.
Check Browser Shortcuts
Right-click your browser shortcuts (desktop, taskbar, Start menu) and select Properties. In the Target field, verify it ends with the browser executable name (like chrome.exe or firefox.exe) with no additional URLs or parameters appended. The hijacker sometimes modifies shortcuts to launch with hlocalweatherradar.co as a startup parameter. Remove anything after the .exe closing quote if present, click Apply, then OK.
Reboot and Verify
Restart your computer completely. After rebooting, open each affected browser and verify your homepage, new tab page, and default search engine are no longer hijacked. Perform a test search to confirm it doesn't redirect through hlocalweatherradar.co. Check Task Manager to ensure no suspicious processes are running. If the hijack returns after reboot, a persistence mechanism remains—consider professional removal at that point rather than risking incomplete cleanup.
Prevention
- Download software only from official sources. Avoid third-party download sites like Softonic, CNET Download, or FileHippo. Get applications directly from the developer's website or from official app stores (Microsoft Store, Mac App Store). These sources rarely bundle PUPs with legitimate software.
- Always choose Custom or Advanced installation. When installing free software, never click "Express" or "Recommended" install. The Custom option reveals bundled offers that you can then decline. Read each screen carefully—pre-checked boxes often hide unwanted software installations.
- Keep your browser and OS updated. Enable automatic updates for Windows, macOS, and all browsers. Many hijackers exploit outdated browser vulnerabilities to install without explicit permission. Legitimate updates come through built-in update mechanisms—never through pop-up browser advertisements.
- Install a reputable ad blocker. Extensions like uBlock Origin (not uBlock) prevent many malicious advertisements from displaying, eliminating the malvertising distribution vector. This also blocks fake update prompts that appear as webpage elements rather than system notifications.
- Review browser extensions quarterly. Set a calendar reminder to audit your installed extensions every three months. Remove anything you don't actively use. Hijackers sometimes install with names similar to legitimate extensions, and unused extensions represent attack surface area.
- Enable your browser's built-in protection. Chrome's "Safe Browsing," Firefox's "Enhanced Tracking Protection," and Edge's "SmartScreen" provide warnings about known malicious sites and downloads. Keep these features enabled at their strongest settings, and heed their warnings.
- Maintain separate browser profiles for sensitive activities. Use one browser profile (or different browser entirely) exclusively for banking and shopping, with minimal extensions installed. Use another profile for general browsing where hijacker risk is higher. This containment limits damage if a hijacker infection occurs.
- Run periodic scans with anti-malware software. Schedule weekly scans with Malwarebytes or similar anti-PUP tools. These complement traditional antivirus by catching browser hijackers and adware that security suites sometimes categorize as low priority. Early detection prevents established infections.
When Computer Repair Roswell removes malware from your system, we back our work with a 90-day reinfection warranty. If the same threat returns within 90 days through no fault of your own (meaning you didn't disable protection or deliberately install suspicious software), we'll remove it again at no charge. We also provide written documentation of exactly what was removed and what prevention measures we implemented—something DIY removal can't offer.
Bring It In
While the manual removal steps above work for straightforward hlocalweatherradar.co infections, some variants install rootkit-like components or additional malware families that require specialized extraction tools and expertise. If you've followed the removal steps but still experience redirections, if Malwarebytes found dozens of detections, or if you're not comfortable editing the Windows registry, professional removal is the safer choice—especially for business computers or systems containing financial records.
Computer Repair Roswell handles browser hijacker removal daily at our location at 1593 Hembree Road in Roswell. We'll thoroughly scan your system with commercial-grade tools that detect persistence mechanisms manual removal might miss, clean all browser profiles and user accounts, verify no additional malware came bundled with the hijacker, and configure prevention measures tailored to your usage patterns. Call us at (770) 695-6544 or stop by Monday through Friday, 9 AM to 6 PM. Most hijacker removals complete same-day, and we'll have your browser performing better than before the infection—often faster, too, once we remove the tracking scripts and advertising injections that were slowing it down.