Sunday, July 14, 2024
EHA

New Malware Framework Generated More Than one Billion Fraudulent ad Impression Via Browser Extension

Researchers discovered a new malware framework that developed to perform fraudulent Google AdSense impressions by installing a malicious browser extension.

In the past 3 months, This Malware framework gained more than one billion fraudulent ad impressions and generated a significant Google AdSense revenue every month.

Threat actors behind this malvertising campaign abusing the content and advertising platforms by deploying the malware and generating a huge amount of revenue.

Malware framework is designed to pad statistics on social sites and ad impressions by including Google Chrome, Mozilla Firefox, and Yandex’s browser and install a malicious browser extension.

Malicious browser extension not only designed to gain ad impression but also generate likes on YouTube videos and watch hidden Twitch streams. 

“Flashpoint researchers found the malicious code that searches for YouTube referrers and then injects a new script tag to load code for YouTube. In this case, the injected JavaScript has an extensive amount of code that is designed to like videos, most of which are related to political topics in Russia.”

Stages to Install Browser Extension

Threat actors are using three separate stages such as Installer, Finder and Patcher to install the malicious browser extension.

Once malware framework infecting the victim’s browsers, the Installer component set up a new browsers extension and it make sure the extension was successfully installed.

Next component Dubbed Finder is ultimately designed to steal browser logins and cookies which is later package in .zip files and send it to the attacker via command and control server.

It also retrieves update binaries instructing from separate C2 panel that check-in with compromised bots and send back stolen credentials and cookie data.

Final Module Patcher component is responsible for installing the browser extension.

Malicious Extension Behaviour

After the successful installation in the browser, the extension begins injecting ads and generating the hidden traffic.

Most of the code written in this framework intended to commit ad fraud and the scripts also used to search and replace the ad-related code on web pages and eventually report the ad clicks to the C2 server.

According to Flashpoint report, the scripts do not inject every website, and most carry large blacklists of domains that are mostly Google domains and Russian websites. In addition, the scripts also attempt to avoid injects into pornographic sites, as these may throw off the impressions. The malware is concentrated in a few geographic locations, led by Russia, Ukraine, and Kazakhstan.

You can download the complete Indicators of Compromise in both CSV and MISP JSON format

You can follow us on LinkedinTwitterFacebook for daily Cybersecurity updates also you can take the Best Cybersecurity course online to keep yourself updated.

Also Read:

Malwarebytes New Browser Extension That Protects you From Visiting Malicious Websites

PythonBot- Dangerous Adware Install on Browser Extension & Bypass Security System

Malicious Chrome and Edge Browser Extension Deliver Powerful Backdoor & RAT to Spy Victims PC

Website

Latest articles

mSpy Data Breach: Millions of Customers’ Data Exposed

mSpy, a widely used phone spyware application, has suffered a significant data breach, exposing...

Advance Auto Parts Cyber Attack: Over 2 Million Users Data Exposed

RALEIGH, NC—Advance Stores Company, Incorporated, a prominent commercial entity in the automotive industry, has...

Hackers Using ClickFix Social Engineering Tactics to Deploy Malware

Cybersecurity researchers at McAfee Labs have uncovered a sophisticated new method of malware delivery,...

Coyote Banking Trojan Attacking Windows Users To Steal Login Details

Hackers use Banking Trojans to steal sensitive financial information. These Trojans can also intercept...

Hackers Created 700+ Fake Domains to Sell Olympic Games Tickets

As the world eagerly anticipates the Olympic Games Paris 2024, a cybersecurity threat has...

Japanese Space Agency Spotted zero-day via Microsoft 365 Services

The Japan Aerospace Exploration Agency (JAXA) has revealed details of a cybersecurity incident that...

Top 10 Active Directory Management Tools – 2024

Active Directory Management Tools are essential for IT administrators to manage and secure Active...
Balaji
Balaji
BALAJI is an Ex-Security Researcher (Threat Research Labs) at Comodo Cybersecurity. Editor-in-Chief & Co-Founder - Cyber Security News & GBHackers On Security.

Free Webinar

Low Rate DDoS Attack

9 of 10 sites on the AppTrana network have faced a DDoS attack in the last 30 days.
Some DDoS attacks could readily be blocked by rate-limiting, IP reputation checks and other basic mitigation methods.
More than 50% of the DDoS attacks are employing botnets to send slow DDoS attacks where millions of IPs are being employed to send one or two requests per minute..
Key takeaways include:

  • The mechanics of a low-DDoS attack
  • Fundamentals of behavioural AI and rate-limiting
  • Surgical mitigation actions to minimize false positives
  • Role of managed services in DDoS monitoring

Related Articles