Ads by bridgechainlabs.com

A recent case captured on June 19, 2025, revealed bridgechainlabs.com masquerading as a benign CAPTCHA page. Visitors who unwittingly click “Allow” find their browsers inundated with push notifications—each promising prize winnings, tech-support “alerts,” or urgent security fixes. What happens next? Unwanted ads hijack the browsing experience, opening the door to further malware and privacy breaches.

Threat Overview

Ads by bridgechainlabs.com is classified as browser notification spam/adware. By abusing the standard web notifications API, this threat delivers intrusive pop-ups—even when users are offline—pushing scams, unwanted applications, and potentially harmful payloads. Its true danger lies in social-engineering tactics rather than exploit code: a single click grants persistent notification rights, turning everyday browsing into a minefield of fraudulent and malicious links.

---

In-Depth Analysis

Infection Vector
Bridgechainlabs.com typically arrives via redirects from compromised or ad-supported sites. A fake CAPTCHA test entices visitors to click “Allow,” granting the site notification privileges. From there, Service Workers deliver ads at will—even when the browser is idle.

Behavioral Profile

1. Initial contact: User lands on bridgechainlabs.com and sees a “verification” prompt.
2. Permission grant: Clicking the checkbox or “Allow” button subscribes the browser to notifications.
3. Ad dispatch: Pop-up notifications begin, often advertising phishing sites, rogue tech-support, PUAs, hijackers, trojans, or even ransomware.
4. Persistence: Notifications persist until permission is revoked manually or via cleanup tool.

Risk Assessment
Although no direct file-infecting code runs on the machine, this adware is a gateway to far more severe threats. By promoting malicious downloads and phishing scams, it can lead to financial loss, data theft, or full-blown malware outbreaks. The overall threat level is medium, escalating quickly if users interact with deceptive notifications.

---

Artifact Text

Click “Allow” to confirm you are not a robot

This deceptive prompt is the cornerstone of the adware’s social-engineering scheme, tricking users into permanently enabling malicious notifications.

Manual Adware Removal Process (Windows & Mac)

Step 1: Identify and Uninstall Suspicious Applications

For Windows Users

1. Open Task Manager by pressing Ctrl + Shift + Esc.
2. Navigate to the “Processes” tab and search for unknown or high-resource-consuming processes.
3. If you detect anything suspicious, right-click and select “End Task.”
4. Go to Control Panel > Programs > Programs and Features.
5. Locate and uninstall any unfamiliar programs.

For Mac Users

1. Open Finder and click on Applications.
2. Identify and move any suspicious applications to the Trash.
3. Empty the Trash.
4. Check System Preferences > Users & Groups > Login Items for unknown startup programs and remove them.

Step 2: Remove Malicious Browser Extensions

Google Chrome

1. Open Chrome, click Menu (three dots) > Extensions.
2. Locate and remove unknown extensions.
3. Reset Chrome: Settings > Reset settings > “Restore settings to their original defaults.”

Mozilla Firefox

1. Click Menu > Add-ons and themes.
2. Remove suspicious extensions.
3. Reset Firefox: Help > More troubleshooting information > “Refresh Firefox.”

Safari (Mac)

1. Open Safari, go to Preferences > Extensions.
2. Delete unknown extensions.
3. Reset Safari: History > “Clear History.”

Microsoft Edge

1. Click Menu > Extensions.
2. Remove any unfamiliar extensions.
3. Reset Edge: Settings > Reset settings > “Restore settings to their default values.”

Step 3: Delete Adware-Associated Files and Folders

For Windows Users

1. Press Win + R, type %AppData%, and press Enter.
2. Locate and delete suspicious folders.
3. Repeat for %LocalAppData%, %ProgramData%, and %Temp%.

For Mac Users

1. Open Finder and press Shift + Command + G, then enter ~/Library/Application Support/.
2. Remove any suspicious folders.
3. Repeat for ~/Library/LaunchAgents/, ~/Library/LaunchDaemons/, and ~/Library/Preferences/.

Step 4: Flush DNS Cache to Remove Adware Traces

For Windows Users

1. Open Command Prompt as Administrator.
2. Type ipconfig /flushdns and press Enter.

For Mac Users

1. Open Terminal.
2. Enter sudo killall -HUP mDNSResponder and press Enter.

Step 5: Restart Your System

Perform a reboot to apply the changes and ensure the removal process is complete.

---

Automatic Adware Removal Using SpyHunter (Windows & Mac)

For an effortless and effective solution, use SpyHunter, a powerful anti-malware tool designed to detect and remove adware completely.

Step 1: Download SpyHunter

Click the link to download SpyHunter: Download SpyHunter Here.

Step 2: Install SpyHunter

Follow the installation guide based on your operating system:

For Windows Users

1. Run the downloaded .exe file.
2. Follow the installation instructions.
3. Launch SpyHunter and allow it to update its malware database.

For Mac Users

1. Open the downloaded .dmg file.
2. Drag and drop SpyHunter into Applications.
3. Open SpyHunter and let it update its database.

Step 3: Scan and Remove Adware

1. Open SpyHunter.
2. Click Start Scan.
3. Wait for the scan to complete.
4. Click Fix Threats to remove detected malware.

Step 4: Restart Your Computer

After SpyHunter removes all threats, restart your system to ensure all adware components are fully removed.

---

Conclusion

Ads by bridgechainlabs.com exemplifies how trivial browser features can be weaponized. Early detection—spotting unsolicited notification requests—and prompt removal are critical to preventing further infection, privacy violations, and financial harm.