Skip to content
November 2, 2026
  • Bluesky
  • Facebook
  • Linkedin
  • Mastodon
  • RSS
  • Twitter
  • Youtube

Daily CyberSecurity

Zero-hour alerts. Unmatched analysis.

Primary Menu
  • Home
  • CVE Data
    • CVE Watchtower
    • Top Exploited CVEs
    • CVE Stats by Vendor
    • Q2 2026 Report
    • CVE Alerts
    • CVE Alert Settings
    • Pricing
  • Cyber Criminals
  • Data Leak
  • Free Tools
    • CVSS 3.1 Calculator
    • Certificate Viewer
    • DNS Lookup
    • Encoder & Hash Generator
    • IP / Subnet Calculator
    • Whois Lookup
  • Linux
  • Malware
  • Vulnerability
  • Submit Press Release
  • Weekly Recap
Light/Dark Button
  • Home
  • News
  • Malware
  • Over 20 million Google Chrome users install malicious ad blocker extensions
  • Malware

Over 20 million Google Chrome users install malicious ad blocker extensions

Do Son April 21, 2018 2 minutes read
malicious ad blocker extensions

Most users will choose to install the ad blocking extension tool immediately after installing Google Chrome and Firefox browser to block ads on the webpage. However, if you directly search the Google Chrome online store for keywords such as ADBLOCK and other popular ad-blocking tools, you may be deceived. Currently, researchers have found 5 malicious adware interceptors in the browser store. The total number of download and installation of these interceptors has reached 20 million.

These ad blockers mainly evade Google’s review by modifying the script. These scripts are so common that auditors do not look closely. But in fact, these scripts have been modified and malicious code has been implanted. These malicious codes will upload the websites visited by users to the attacker’s server. In order to avoid all the remote control commands issued by the attacker being hidden in the picture, the picture itself is harmless but the malicious code can read the content. The malicious script finally loaded has the ability to allow an attacker to change the browser in any way. The attacker can also issue commands to perform remote operations at any time. Infected users form botnets for use by attackers, but no investigation has been conducted to confirm what the attackers did with botnets.

 

Being able to download 20 million times naturally cannot rely on simple camouflage. These malicious ad blockers mainly rely on popular keywords to induce users to actively install.

At the same time, users will find that they can actually block advertisements after installation because these malicious interceptors are modified based on ADBLOCK and the like.

Therefore, some of the popular Li ghost interceptors have thousands of or even tens of thousands of five-star praise, these five-star praise for later users more easily attracted and fooled.

 

  • AdRemover for Google Chrome™ (10 million+ users)
  • uBlock Plus (8 million+ users)
  • [Fake] Adblock Pro (2 million+ users)
  • HD for YouTube™ (400,000+ users)
  • Webutation (30,000+ users)
Add Daily CyberSecurity as a preferred source on Google

Related coverage

  • SPIKEDWINE’s Espionage Campaign with WINELOADER Backdoor Revealed
  • Fake Braintree NuGet Package Skims Credit Cards and Steals Merchant API Keys
  • CVE-2024-30088 Under Attack: OilRig Targets Windows Kernel Vulnerability
  • Inside a Python Infostealer: How Attackers Abuse Legitimate Platforms for Credential Theft
  • Earth Estries’ Evolving Toolkit: A Deep Dive into Their Advanced Techniques
  • Zergeca Botnet Exposed: Advanced Capabilities Beyond DDoS
Track all actively exploited CVEs →

Support Our Threat Intelligence

Find our threat intelligence and malware analysis helpful? Support our work today and unlock a 100% ad-free reading experience!

Buy Me a Coffee Logo Buy Me a Coffee
Select your plan
Free Pro Team

Hover over a plan to see its benefits.

Get Zero-Hour Vulnerability Alerts

Critical CVEs, CVSS scores, and PoC updates — straight to your inbox every week.

We respect your inbox. Unsubscribe anytime.

SHARE
Share on FacebookShare on XShare on LinkedInShare on TelegramShare on BlueskyShare on Mastodon
Written by
@DdoS · Security Researcher

Do Son

Do Son is the Founder and Editor of SecurityOnline.info. Working in cybersecurity since 2013, he reports on vulnerabilities, malware, and emerging threats, providing timely analysis to help organizations and individuals stay ahead of evolving risks.

Tags: malicious ad blocker extensions

Search

CVE ALERTS
📈

EPSS Spike Alerts
Catch risk spikes before they make headlines.

🎯

Custom EPSS/CVSS
Set score thresholds to effectively filter noise.

🛡️

Exploit Intel
Real-world exploit signals beyond the KEV catalog.

🐙

GitHub Issues
Auto-create alert tickets without duplication.

📬

Weekly Digest
Clean summaries, eliminating email spam.

🏷️

Watchlist Groups
Tag vulnerabilities by team (Infra/AppSec/SOC).

🔀

Smart Routing
Route chat channels based on severity levels.

🚨

RBP Tracker
Early warning detection and tracking system.

Subscribe – $7/mo or try free for 14 days →

🚨 Active Exploits in the Wild

  • CVE-2026-20051CVSS 7.4
    A vulnerability with the Ethernet VPN (EVPN) Layer 2 ingress packet processing of Cisco Nexus 3600 Platform Switches...
    Watchtower Verified📅 Updated: Nov 1, 2026
  • CVE-2026-20118CVSS 6.8
    A vulnerability in the handling of an Egress Packet Network Interface (EPNI) Aligner interrupt in Cisco IOS XR...
    Watchtower Verified📅 Updated: Nov 1, 2026
  • CVE-2010-20125CVSS 8.7
    DedeCMS before 5.7 contains a file inclusion vulnerability in plus/carbuyaction.php that allows remote unauthenticated attackers to control the...
    Watchtower Verified📅 Updated: Oct 30, 2026
  • CVE-2015-20130CVSS 5.1
    Netsweeper before 4.0.11 and 4.1.0 before 4.1.5 contains a reflected cross-site scripting vulnerability in webadmin/reporter/view_server_log.php that allows remote...
    Watchtower Verified📅 Updated: Oct 30, 2026
  • CVE-2026-111357CVSS 7.0
    Ivanti Connect Secure 22.8R2.4 mishandles the manner in which the dsinvoked broker trusts DSCache configuration data, leading to...
    CISA KEV📅 Added to KEV: Oct 30, 2026
  • CVE-2026-118527CVSS 4.3
    Use of predictable filenames in Ivanti Connect Secure before versions 25.1.1.3 and 22.8R2.6 allows a remote authenticated attacker...
    CISA KEV📅 Added to KEV: Oct 30, 2026
  • CVE-2026-118539
    This module enables you to sell goods and services to customers through an included shopping cart and checkout...
    Admin intel📅 Updated: Oct 29, 2026
  • CVE-2022-31034CVSS 8.3
    Impact All versions of Argo CD starting with v0.11.0 are vulnerable to a variety of attacks when an...
    Watchtower Verified📅 Updated: Oct 29, 2026
Powered by CVE Watchtower

Critical Vulnerabilities

  • CVE-2026-83770CVSS 9.8
    Heap-based buffer overflow in Windows Text Shaping allows an unauthorized attacker to execute code over a network.
    📅 Updated: Nov 2, 2026
  • CVE-2026-83780CVSS 9.8
    Use after free in Windows CCFFilter Driver allows an unauthorized attacker to execute code over a network.
    📅 Updated: Nov 2, 2026
  • CVE-2026-116606CVSS 9.3
    An authentication bypass in Barracuda Email Security Gateway versions earlier than 9.4.0.030 allows an unauthenticated remote attacker to...
    📅 Updated: Nov 2, 2026
  • CVE-2026-83782CVSS 9.8
    Heap-based buffer overflow in Windows Shell allows an unauthorized attacker to execute code over a network.
    📅 Updated: Nov 2, 2026
  • CVE-2026-19677CVSS 9.3
    An authentication bypass vulnerability in the public onPhase/ frevvo registration form version 11.0.14 allows an unauthenticated remote attacker to...
    📅 Updated: Nov 2, 2026
  • CVE-2026-111594CVSS 9.2
    InterSystems IRIS for Health has TLS/SSL encryption turned off by default, which may enable an attacker to view...
    📅 Updated: Nov 2, 2026
  • CVE-2026-120213CVSS 9.1
    @fastify/http-proxy is a Fastify plugin that proxies HTTP requests to an upstream server under a configured prefix. In...
    📅 Updated: Nov 2, 2026
  • CVE-2026-102435CVSS 9.8
    The Ultra Addons for Contact Form 7 plugin for WordPress is vulnerable to arbitrary file deletion due to...
    📅 Updated: Nov 2, 2026
Powered by CVE Watchtower

Daily CyberSecurity

  • About SecurityOnline.info
  • Advertise with us
  • Announcement
  • Contact
  • Contributor Register
  • Login
  • Disclaimer
  • DCMA
  • Privacy Policy
  • About SecurityOnline.info
  • Advertise on SecurityOnline.info
  • Contact Us

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works

  • CVE Watchtower
  • CVE Statistics by Vendor 2026
  • Q3 2026 Report
  • Top Exploited CVEs
  • Bluesky
  • Facebook
  • Linkedin
  • Mastodon
  • RSS
  • Twitter
  • Youtube
© 2017 - 2026 Daily CyberSecurity. All Rights Reserved.