If Review4.in has hijacked your browser or keeps redirecting you to suspicious sites, you’re not alone. What might seem like a harmless tool or webpage is actually a browser hijacker designed to flood you with pop-ups, redirect links, and potentially steal your data.
This threat is part of a growing wave of scams that pose as legitimate online resources, only to trick users into clicking malicious links or installing bloatware. Even worse, threats like Review4.in can operate in the background of your system—hidden from plain view—making it harder to detect without proper anti-malware tools.
Let’s dive into what makes Review4.in such a threat.
Review4.in Threat Summary
Detail | Information |
---|---|
Threat Name | Review4.in |
Type | Browser Hijacker, Redirect Virus, PUP (Potentially Unwanted Program) |
Detection Names | PUP.Optional.Review4, Adware.Review4, BrowserModifier:Win32/ReviewHijack |
Symptoms of Infection | Unexpected pop-ups, browser redirects, fake alerts, altered search settings |
Damage | Exposure to phishing pages, personal data leaks, system slowdown |
Distribution Methods | Malicious ads, bundled software, suspicious browser extensions, fake downloads |
Danger Level | Moderate to High |
Associated Emails | None known (mostly browser-based redirects) |
Known Redirect Domains | Scam pages, phishing sites, software bundle pages |
Recommended Removal Tool | SpyHunter |
Estimated Removal Time | Less than 15 Minutes |
What Is Review4.in?
Review4.in is classified as a browser hijacker and PUP. At first glance, it may appear like a harmless website or app, but its real purpose is to manipulate your browsing behavior. Once active, it pushes pop-up ads and fake system warnings to redirect users to unsafe pages or install more unwanted software.
These unwanted redirects often lead to:
- Scam websites that mimic legitimate companies
- Fake system error messages urging you to download “security tools”
- Bloatware installers loaded with ad-supported or malicious programs
- Data-harvesting sites that collect personal information without your consent
How Did Review4.in Get on My Computer?
Review4.in typically sneaks in through:
- Clicking unknown pop-up ads or redirect links
- Downloading freeware from unverified sources
- Installing suspicious browser extensions
- Visiting compromised or sketchy websites
This threat thrives on user error—especially when people download “free tools” from unfamiliar websites or fail to update their browser security settings.
What Happens If I Ignore It?
Leaving Review4.in running on your computer can lead to several dangerous outcomes:
- Your homepage or search engine might get changed without permission.
- You may be bombarded by pop-ups that won’t go away.
- It can slow down your browser and overall system performance.
- You risk getting tricked by phishing websites or scam messages.
- Sensitive data (like browsing history, login credentials, or autofill info) could be collected and misused.
Even if you’re not noticing any symptoms yet, this threat runs processes in the background—making it hard to detect without professional tools.
Recommended Tool for Removal
To detect and eliminate Review4.in and similar browser hijackers, we recommend using:
SpyHunter is specifically designed to root out deeply embedded PUPs, adware, and browser hijackers like Review4.in. It runs a thorough scan of your system and helps ensure any traces of the threat are fully removed.
Option 1: Manual Browser Hijacker Removal
Step 1: Uninstall Suspicious Software
For Windows:
- Press
Windows + R
, typeappwiz.cpl
, and press Enter. - Look for recently installed or unknown software.
- Select the suspicious program and click Uninstall.
- Follow the uninstaller’s prompts.
For Mac:
- Open Finder > Applications.
- Locate any unfamiliar apps you didn’t intentionally install.
- Drag them to the Trash.
- Right-click the Trash and select Empty Trash.
Step 2: Reset Each Web Browser Affected
Google Chrome:
- Go to chrome://settings/reset.
- Click Restore settings to their original defaults > Reset settings.
- Then, visit chrome://extensions and remove any suspicious add-ons.
- Change your search engine:
Settings > Search Engine > Manage search engines — remove unwanted entries and set a trusted one like Google.
Mozilla Firefox:
- Click the menu icon (three lines) > Help > More Troubleshooting Information.
- Click Refresh Firefox.
- After reset, check Add-ons and Themes and remove unwanted extensions.
- Navigate to Settings > Home/Search and revert changes to your preferred provider.
Microsoft Edge:
- Click menu (three dots) > Settings > Reset Settings > Restore settings to their default values.
- Open edge://extensions and remove any unfamiliar plugins.
- Reconfigure your homepage and search engine if needed.
Safari (Mac Only):
- Open Safari > Click Safari in the top menu > Clear History (select All History).
- Go to Preferences > Extensions, remove unknown entries.
- Under General, set your homepage.
- Under Search, revert to your preferred search provider.
Step 3: Check and Clean Your Hosts File
On Windows:
- Open Notepad as Administrator.
- Go to:
C:\Windows\System32\drivers\etc\hosts
- Look for unknown IPs or domains — remove them.
- Save changes and reboot.
On Mac:
- Open Terminal.
- Run:
sudo nano /etc/hosts
- Identify and remove hijacker entries.
- Press
Control + O
to save andControl + X
to exit.
Option 2: Automatic Removal Using SpyHunter
If you want a faster and safer solution — especially if the hijacker reinstalls after manual removal — use SpyHunter, a trusted anti-malware tool.
Step 1: Download SpyHunter
Visit the official download page: Download SpyHunter
Need help with the installation? Follow this page: SpyHunter Download Instructions
Step 2: Install and Launch the Program
- Run the installer and follow the steps for your OS.
- Open SpyHunter after installation.
Step 3: Perform a Full System Scan
- Click Start Scan Now.
- Wait while SpyHunter analyzes your computer for browser hijackers, malware, and other PUPs.
- Once the scan completes, click Fix Threats to eliminate them.
Step 4: Reboot and Recheck Your Browser
After cleaning, restart your device. Open your browser and check if your homepage and search settings are restored. If not, perform a quick browser reset using the manual steps above.
How to Prevent Future Infections
- Avoid downloading freeware from third-party sites.
- Use custom/advanced installation and deselect optional offers.
- Keep your browser and OS updated.
- Regularly scan your system with SpyHunter for proactive defense.
- Don’t click strange pop-ups or redirect links from unknown sources.
Conclusion
Review4.in is not just an annoyance—it’s a threat to your privacy and device performance. By posing as a helpful utility or redirecting you through deceptive pop-ups, it can put your data at risk and open the door to more malware.
Don’t ignore the warning signs. If you’ve seen strange redirects, changed browser settings, or fake alerts popping up on your screen, take action today.
Download a reliable removal tool like SpyHunter and regain control over your system.