Malvertising Campaign Transmits Nasty Chrome Extensions and Backdoors

  • By David Lukic
  • Published: Dec 20, 2021
  • Last Updated: Mar 18, 2022

Several malvertising campaigns are tricking people into downloading damaging Google Chrome extensions and backdoors. This covert digital attack aims to steal user credentials and valuable data and sell them to identity thieves. 

About the Attack

The malverstising campaigns are using fake installers in the apps and games to convince users it is safe to download extensions and backdoors. The primary extension is an undocumented Google Chrome extension. 

The digital attack uses everything from NoxPlayer to WeChat, Battlefield, and Viper to trick targets into seemingly harmless downloads. The users’ systems are then compromised. This digital attack is complex to the point that it provides ongoing remote access to activity and data.

Who is Responsible for the Malvertising?

The identity of the party behind the malware payloads is not yet known. However, Cisco Talos states the hacker operates under the alias of “magnat.” Magnat is enhancing the malvertising campaigns as time progresses, making the threat all the more dangerous with each passing day.

When did the Attacks Start?

Though authorities are uncertain when the malvertising attacks started, it appears that they began in the final months of 2018. The activity was observed through the end of ’19 and into ’20. The attacks picked up in volume in the spring of ’21. 
Malvertising Campaign Transmits Nasty Chrome Extensions and Backdoors

Who is Being Targeted?

The malvertising attacks are zeroing in on individuals in select countries. In particular, the malvertising campaigns target computer users in the United States, Italy, Norway, Spain, and Australia. The malvertising has primarily focused on individuals looking for popular software, including apps and games. 

How Does the Attack Occur?

Links are presented on search engine results pages, encouraging searchers to download installers that implement a password-stealing program dubbed RedLine Stealer. The malvertising also includes an extension referred to as the MagnatExtension. This extension records user keystrokes. The extension also captures screenshots of users’ activities while using computing devices. 

The malvertising attack even includes a backdoor to provide the hacker with remote access to the user’s computing device. Users are deceived into assuming the MagnatExtension is Google’s Safe browsing. MagnatExtension is complex to the point that it even transmits packs with specialized features for stealing form data, executing JavaScript code, and harvesting cookies. 

Why the Malvertising Campaigns Have Digital Security Experts Concerned

The malvertising’s password stealers and the extension for Google Chrome are being compared to banking trojans. Digital security professionals believe the attacker aims to steal user login information and sell it on the black market or use it for additional exploitation
Industry veterans are unsure why the malvertising campaigns include the deployment of a specialized RDP backdoor. The underlying assumption is this tactic might help sell RDP access for additional exploitation of target users’ systems and data moving forward.
About the Author
IDStrong Logo

Related Articles

Instagram Vulnerability Allowed Hackers Access to Control Your Phone

Security experts Check Point Research discovered a critical vulnerability while examining Instagra ... Read More

Alien Malware Infects More than 226 Mobile Apps and Steals Bank Data

As reported on September 24, 2020, by ZDNet and ThreatPost, a new strain of malware named “A ... Read More

Universal Health Systems Hit by Ransomware Attack

Universal Health Systems (UHS), a Fortune 500 company owning more than 400 hospitals across the co ... Read More

Exchange Server Bug Exposes a Big Risk to Hackers

Months after Microsoft released a patch to fix a serious flaw in MS Exchange Server, more than 61% ... Read More

Clients’ Bank Data Exposed in Blackbaud Ransomware Attack

Blackbaud software was victim to a ransomware attack last May, and new information suggests that c ... Read More

Latest Articles

What Is An On-Path Attack and How Does It Work? 

What Is An On-Path Attack and How Does It Work? 

Suppose someone left their home, got in their car, and drove to the grocery store. Much like data packets that travel over Internet highways, the car will use various pathways to reach its destination; however, once the car gets to the store, a question remains: what happened between the generating point and the destination?

What is Bait and Switch Scams: How it Works and How to Avoid It

What is Bait and Switch Scams: How it Works and How to Avoid It

Ever follow an ad featuring limited-time products to a company's web page only to find they're selling something else entirely?

Wire Fraud: What It Is and How to Stop It

Wire Fraud: What It Is and How to Stop It

In 2023, based on wire fraud statistics nearly a quarter of consumers received suspicious communications, which may have occurred over text, email, phone, or social media.

Featured Articles

How to Buy a House with Bad Credit

How to Buy a House with Bad Credit

Buying your own home is the American Dream, but it might seem out of reach to those with bad credit. However, the good news is, if your credit is less than perfect, you do still have options and in most cases, can still buy a home.

How Secure Is Your Password? Tips to Improve Your Password Security

How Secure Is Your Password? Tips to Improve Your Password Security

Any good IT article on computers and network security will address the importance of strong, secure passwords. However, the challenge of good passwords is that most people have a hard time remembering them, so they use simple or obvious ones that pose a security risk.

Top 10 Senior Scams and How to Prevent Them

Top 10 Senior Scams and How to Prevent Them

Senior scams are becoming a major epidemic for two reasons. First, seniors often have a lot of money in the bank from a life of working hard and saving.

Free Identity Exposure Scan
Instantly and Securely Check if Your Personal Information is Exposed on the Dark Web or Sold by Data Brokers
Please enter first name
Please enter last name
Please select a state
Close
Free Identity Threat Scan
Instantly Check if Your Personal Information is Exposed
All fields below are required
Please enter first name
Please enter last name
Please enter a city
Please select a state
Please enter an age
Please enter an email address
Close