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5 Scams to Watch for This Memorial Day Weekend

Memorial Day weekend officially kicks off summer, and for millions of Americans, that means road trips, flights, cookouts, and a little online shopping for the deals. 

Unfortunately, scammers know this. They count on the fact that you’re distracted, you’re moving fast, and you’re probably connected to a network you don’t own. 

Here are five scams surging this holiday weekend, what they look like, and how to stay ahead of them.

1. Fake Travel Alerts from “Your Bank” or Hotel

You’re packing your bag when a text arrives: “Unusual activity detected on your account. Verify now to avoid suspension.”  

It looks like it’s from your bank, or maybe your hotel loyalty program. There’s a link. There’s urgency. And that’s exactly the point. 

These are brand impersonation scams, and they’re a dominant tactic year-round, but they spike around travel holidays when people are actively monitoring reservations and accounts.  

Example of a fraudulent AMEX message.
Example of a fraudulent AMEX message.

According to McAfee research, trusted brands like banks, airlines, and hotels are among the most commonly impersonated, and email scams impersonating retail and financial brands have surged up to 85% as major holidays approach. 

The message will typically ask you to click a link and “confirm your details” to secure your account or honor a reservation. That link leads to a convincing-looking fake site designed to capture your login credentials, payment info, or both. 

How to Avoid Travel Alert Scams:  

  • Don’t click links in unsolicited texts or emails.  
  • Go directly to the company’s app or website by typing the URL yourself.  
  • Remember: pressure is a tactic, not customer service.  

McAfee’s Scam Detector can flag suspicious messages before you interact with them, whether they come via text, email, or social media. 

2. Fake Memorial Day Weekend “Deals”

Memorial Day is one of the biggest shopping weekends of the year. Scammers treat it like an open invitation. 

Fraudulent retailers flood social feeds with too-good-to-be-true deals on everything from patio furniture to electronics, often impersonating legitimate brands with copycat websites and paid ads. 

According to McAfee’s holiday shopping research, 91% of shoppers see ads from unfamiliar retailers, 37% say they might buy from a brand they don’t recognize, and a full 40% of consumers have abandoned a purchase out of fear that the deal wasn’t real. 

The most impersonated brands in McAfee’s research span luxury labels (Coach, Dior, Gucci) to mainstream favorites (Apple, Samsung, Nintendo, Disney), exactly the kind of items that show up in “blowout sale” ads. Fake storefronts have grown significantly, with technology URL scams rising nearly 50%. 

Once shoppers enter their payment details on a fraudulent site, that information goes directly to criminals. The average scam loss during the holiday shopping period runs around $840 per victim. 

How to Avoid Shopping Scams:  

  • Type retailer URLs directly into your browser instead of clicking through ads or social posts.  
  • Look for HTTPS and double-check the domain carefully before entering any payment info.  
  • If a deal looks unbelievably good, verify it on the retailer’s official app before buying.  

McAfee’s Web Protection blocks malicious and suspicious sites before they load, including fake checkout pages. 

3. QR Code Scams at Gas Stations and Travel Stops

If you’re road-tripping this weekend, you may scan a QR code somewhere. It could be at the gas pump, a rest stop, a parking meter, or a roadside attraction. Scammers know this too. 

Criminals increasingly place fake QR codes over legitimate ones on gas station pumps, parking kiosks, and public signs. When you scan, you’re redirected to a convincing-looking payment or login page that captures your financial information. This is known as “quishing” or phishing via QR code. 

McAfee research shows just how widespread this risk has become: 68% of people scanned a QR code in the past three months, and 18% ended up on a suspicious or unsafe page after scanning. Among those who did, more than half took a risky action like entering personal information, installing an app, or connecting a digital wallet. 

How to Avoid Sketchy QR Codes:   

  • Before scanning any QR code in public, look closely at the sticker or sign.  
  • If it looks like it’s been placed over something else, skip it.  
  • If you do scan, check the URL before proceeding.  

McAfee’s Scam Detector now includes instant QR code safety checks that assess risk before you tap, so you’re not flying blind at the gas pump. 

QR Scan Example
This shows how McAfee blocks unsafe QR codes.

4. Public Wi-Fi Traps at Airports, Hotels, and Coffee Shops

Whether you’re waiting at the airport or grabbing coffee before hitting the highway, free Wi-Fi can feel like a gift. But not every “free Wi-Fi” network is what it appears to be. 

Hackers set up what are called “evil twin” networks, hotspots with names designed to look exactly like the legitimate network at the airport, hotel, or café you’re in.  

The moment you connect, they can use tools called packet sniffers to capture the data you send and receive: passwords, banking credentials, credit card numbers, email logins.  

According to McAfee’s travel research, 63% of travelers connect to public Wi-Fi, and 49% use airport Wi-Fi, making these among the riskiest behaviors travelers engage in without realizing it. 

Some of these fake networks go further, presenting a phony login screen that captures your username and password for popular services like Google or Apple before you even realize you’ve been compromised. 

How to Avoid Malicious Wi-Fi : 

  • Always confirm the exact Wi-Fi network name with staff before connecting.  
  • Turn off auto-join for Wi-Fi on your devices.  
  • And most importantly: use a VPN.  

A VPN creates an encrypted tunnel for your internet traffic, so even if a hacker intercepts it, they’ll only see scrambled data. McAfee’s VPN is included in McAfee+ plans and automatically connects when you join public Wi-Fi, exactly the protection you want when you’re traveling and connecting everywhere.

5. Toll Road and Parking Text Scams (Expect a Surge After the Weekend)

You may have seen these already: a text that says you owe an unpaid toll or parking fee, with a link to pay before penalties kick in. These scams have been circulating for a while, and there’s a good chance Memorial Day weekend is about to make them worse. 

Scammers track news cycles and know that millions of Americans will be driving this weekend, many of them through toll roads and unfamiliar areas.  

That means they can blast out fake “unpaid toll” texts after the holiday and a significant percentage of recipients will think: “Actually, I did drive somewhere new this weekend.” That uncertainty is exactly what they’re counting on. 

Fake court notices threatening parking and toll violations have been making the rounds this spring.

These texts typically impersonate EZPass, SunPass, or state transportation departments and create urgency around a small fee to avoid larger fines. The link leads to a fake payment page designed to steal your credit card details. 

How to Avoid Toll Scams:   

  • Don’t click links in unsolicited toll or parking texts.  
  • If you think the charge might be legitimate, go directly to your state’s official toll authority website and look up your account there.  
  • Real toll agencies will not threaten immediate penalties over text with a payment link.  
  • If you receive one of these texts after this weekend, treat it as suspicious by default. 

Have a Safe Memorial Day Weekend 

Scammers don’t take holidays. If anything, long weekends are peak season. The good news: a little awareness goes a long way. Slow down before you click, verify before you scan, and protect your connection before you log on. 

McAfee+ Advanced comes with layered protection across all the moments where scams are most likely to strike, from the gas station to the hotel lobby to your inbox.  

Stay safe out there. 

The post 5 Scams to Watch for This Memorial Day Weekend appeared first on McAfee Blog.

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1 in 3 Targeted by Travel Scams and Rising Costs are Making it Worse

You’re comparing airfare on your phone, watching prices climb by the hour, when a deal pops up that feels just good enough to grab. The timer’s ticking. The price looks right. You don’t want to miss it. 

You’re comparing airfare on your phone, watching prices climb by the hour, when a deal pops up that feels just good enough to grab. The timer’s ticking. The price looks right. You don’t want to miss it. 

That moment, when you’re rushing to lock something in, is exactly where scams thrive. 

New McAfee research shows that more than 1 in 3 Americans have encountered a travel-related cyberthreat, and 41% of those impacted lost money, often exceeding $500. 

This shows a screenshot of a fake Booking.com website detected by McAfee that was attempting to trick users into running malicious script/code
This shows a screenshot of a fake Booking.com website detected by McAfee that was attempting to trick users into running malicious script/code

At the same time, rising travel costs and time pressure are pushing people to make faster, riskier decisions. Those are the exact conditions scammers rely on. 

That’s where protection has to show up earlier. 

McAfee’s Scam Detector lets you check suspicious links, messages, and booking sites before you click, so you can pause and verify instead of giving scammers the edge. 

Travel Scams, Red Flags, and How McAfee Protects You 

Travel Scam Type  Key Red Flags  How McAfee Helps 
Fake travel deals  Prices far below market, pressure to “book now,” sites you’ve never heard of  Scam Detector flags suspicious links and explains why they’re risky, so you can avoid fake deals before you book 
Fake booking confirmations  Unexpected messages about bookings you didn’t make, mismatched sender details  Scam Detector analyzes messages before you engage, helping you avoid fake confirmations 
Fake airline/hotel websites  Slight URL changes, poor design, being pushed to pay immediately or off-platform  Safe Browsing helps block risky sites before you enter payment details, reducing the chance of fraud 
Payment requests outside platforms  Asked to pay via wire transfer, crypto, or direct payment instead of official platforms  Scam Detector flags suspicious payment requests, helping you avoid sending money to scammers 
QR code scams  QR codes posted in public with no clear source or context  Scam Detector checks QR links before they open, so you don’t land on malicious sites 
Customer service impersonation  Calls or messages asking for login credentials or payment info  Scam Detector detects deepfake AI audio impersonation attempts, helping you avoid sharing sensitive information 
AI-generated listings  Photos that look overly polished, details that don’t quite match up  Scam Detector identifies suspicious content patterns, helping you spot listings that aren’t real 
Public Wi-Fi attacks  Open networks with no password or security prompts  VPN helps protect your data on public networks, keeping your personal information private 

The Findings From Our 2026 Travel Research 

McAfee Labs found that many travel scams work because they look familiar and spread fast.  

TripAdvisor was the most commonly impersonated travel app, cloned at roughly three times the rate of other major platforms like Kayak, Expedia, and Booking.com.  

In some cases, thousands of scam detections traced back to just a handful of fake apps, showing how quickly a convincing scam can take off when travelers are racing to book. 

Top 5 Ways Rising Travel Costs Are Driving Risky Decisions 

Our 2026 travel survey shows how rising prices and lastminute pressure are changing traveler behavior, often in ways scammers exploit. 

1. Booking faster than usual
90% feel pressure to act quickly  

2. Choosing cheaper deals without verifying
32% would book before confirming legitimacy  

3. Ignoring red flags
33% admit they’ve done it  

4. Trusting messages that look legitimate
41% trust airline/hotel messages without verifying  

5. Clicking links without checking the source
20% click first, verify later (or not at all)  

Top 5 Ways Costs Drive Risk

The Travel Scams People Are Most Likely to Fall For

According to our consumer survey findings, those who reported falling for a travel scam said these were the methods scammers used to trick them:

1. Fake travel deals or promotions (15%)

2. Scam booking confirmations or updates (15%)

3. Manipulated accommodation listings or photos (15%)

4. Payment requests outside official platforms (11%)

5. Fake vacation rental listings (10%)

6. Fake airline or hotel websites (9%)

7. Customer service impersonation (9%)

The Travel Scams People Are Most Likely to Fall For

8 Ways Travelers Put Themselves at Risk Without Realizing It

These common traveler behaviors are popular avenues for criminals to steal your information, data, and money.

1. Connecting to public Wi-Fi (63%)  

2. Scanning QR codes without verifying (62%)  

3. Using airport Wi-Fi (49%)  

4. Trusting travel-related messages (41%)  

5. Logging into financial apps on public Wi-Fi (22%)  

6. Sharing travel plans in real time (22%)  

7. Clicking travel links without verifying (20%)  

8. Using shared/public computers (15%)  

8 Ways Travelers Put Themselves at Risk Without Realizing It

How McAfee Protects You Before, During, and After Your Trip 

As prices rise and decisions happen in real time, it’s easy to prioritize convenience over caution. But that’s exactly the moment when small checks matter most. 

Stage of Travel  What’s Happening  How McAfee Helps 
Before You Book  Comparing deals, clicking promotions, booking flights and hotels under time pressure  Scam Detector checks links, messages, and booking sites before you click, helping you avoid fake deals and scam listings 
During Your Trip  Connecting to public Wi-Fi, scanning QR codes, receiving travel updates and alerts  VPN helps secure your connection on public Wi-Fi, while Scam Detector flags suspicious messages and unsafe links in real time 
After Your Trip  Accounts remain active, travel data stored across platforms, potential exposure from breaches  Identity Monitoring alerts you if your personal information appears online, helping you act quickly before damage spreads 

With McAfee+ Advanced, multiple layers work together so you’re not left figuring it out after the damage is done.  

Spend more time on your vacation, and less time worrying about scammers who want your vacation fund. 

The post 1 in 3 Targeted by Travel Scams and Rising Costs are Making it Worse appeared first on McAfee Blog.

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McAfee Ranks #1 in AV-Comparatives PC Performance Test — Again

McAfee Total Protection just took first place in the latest AV-Comparatives PC Performance Test, the gold standard for measuring how much (or how little) security software slows down your computer.  

With an overall impact score of 3.3 out of a possible 100, McAfee outperformed all 19 other security products tested and earned the highest possible rating: 3 Stars ADVANCED+. 

The industry average? 12.8. McAfee came in nearly 4x lower than that. The lower the impact score, the less the software gets in your way 

What Is the AV-Comparatives PC Performance Test? 

AV-Comparatives is an independent cybersecurity testing lab that has been rigorously evaluating security software since 1999. Unlike a review written by a single journalist or a score based on a company’s own claims, AV-Comparatives tests are: 

  • Independent: delivers unbiased, datadriven evaluations of security products  
  • Standardized: every product is tested under the same conditions 
  • Widely trusted: regularly cited in product roundups, expert reviews, and buying guides that shape how consumers choose security software 

The PC Performance Test specifically measures how much a security product impacts your computer’s everyday speed. Testing is conducted on a real Windows 11 machine (Intel Core i3, 8GB RAM, SSD) with all default settings enabled and an active internet connection. That’s the same setup millions of everyday users have at home. 

AV-Comparatives evaluates real-world tasks including: 

  • Copying and moving files 
  • Installing and launching apps 
  • Downloading files from the web 
  • Browsing websites 

The lower the impact score, the less the software gets in your way.

What McAfee’s Score Actually Means 

McAfee Total Protection scored 3.3the lowest impact score of all 20 products tested, and well below the industry average of 12.8. 

Here’s a simple way to think about it: if the average security product takes a measurable toll on your machine while it works in the background, McAfee barely registers. You get full, always-on protection without the sluggishness that frustrates so many users. 

This result earned McAfee the ADVANCED+ rating, the highest tier AV-Comparatives awards, reserved for products that deliver top-tier performance with minimal system impact. 

Why “Lightweight” Protection Matters More Than You Think 

There’s a common misconception that stronger protection means a heavier, slower product. McAfee’s results prove otherwise. 

When your security software is slow, you notice it: 

  • Apps take longer to open 
  • Downloads feel sluggish 
  • Your machine lags during everyday tasks 
  • You’re tempted to disable protection to get your speed back, leaving yourself exposed 

A lightweight product means protection that works quietly in the background, without making you choose between safety and performance. That’s the promise behind McAfee’s result, and it’s now independently verified. 

AV-Comparatives Test Results
AV-Comparatives Test Results

 

First Place, But Not for the First Time 

This isn’t a one-off result. McAfee has earned the ADVANCED+ rating consistently across multiple rounds of AV-Comparatives testing, demonstrating that this level of performance isn’t luck. It’s the result of deliberate, sustained engineering. 

Independent, repeatable results like these are what separate marketing claims from proven performance. 

With McAfee, you get award-winning protection and award-winning performance, so your devices stay secure without slowing you down. 

Which McAfee Plans Include This Protection? 

The same AI-powered threat protection validated in this test is built into every major McAfee plan: 

  • McAfee+ Premium 
  • McAfee+ Advanced 
  • McAfee+ Ultimate 
  • McAfee Total Protection 
  • McAfee LiveSafe 

Whether you’re protecting one device or an entire household, you’re getting the same industry-leading, independently verified performance under the hood. 

Ready to get protection that doesn’t slow you down? Explore McAfee+ Plans → 

The post McAfee Ranks #1 in AV-Comparatives PC Performance Test — Again appeared first on McAfee Blog.

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How to Spot Fake Court Texts and Celebrity Deepfake Ads: This Week in Scams

A text that looks like it came straight from a courthouse is making the rounds across the U.S. And yes, I got it too. 

First things first, that’s a scam. And to be clear: DON’T SCAN THAT QR CODE. 

It’s the same playbook as last year’s toll road scams, just dressed up with a little more authority and a lot more pressure. 

Before doing anything, our team ran it through McAfee’s Scam Detector. It immediately flagged the message as suspicious, and that’s exactly the kind of moment this tool is built for. When something feels just real enough to second guess, it gives you a clear signal before you click, scan, or spiral. 

This shows how Scam Detector immediately flagged the text message and court image as suspicious.  
A screenshot showing Scam Detector in action.

This court notice scam has ramped up and changed shape since we first covered it in March. So let’s get into how it works: 

How the scam works 

The text claims you’ve missed a payment, violated a law, or have some kind of outstanding “case.” It then pushes you to scan a QR code or click a link to resolve it quickly. 

From there, one of two things usually happens: 

  1. You’re taken to a fake payment page designed to steal your money, or 
  2. You’re prompted to download something that gives scammers access to your device or data  

Either way, the goal is the same: get you to act fast before you have time to question it. 

Here's the fake text our author received
Here’s the scam text I got in California. You’ll notice it looks exactly like the others across the country. 

The red flags in this message 

  • Urgent, threatening language about fines, penalties, or legal action  
  • Vague accusations with no real details about what you supposedly did  
  • Official-looking formatting like case numbers, clerk signatures, and judge names  
  • Copy-paste consistency across states: McAfee employees in New York and California received nearly identical messages with the same names  

There are reports of this scam popping up nationwide, but the rule is simple: law enforcement does not text you to demand payment or resolve legal issues. 

What to do if you scanned the QR code 

First, don’t panic. Then: 

  • Do not pay anything or enter personal information  
  • Do not delete apps you were told to install (this can make it harder to detect what happened)  
  • Run a device scan using a trusted security tool like McAfee’s free antivirus  
  • Keep an eye on your financial accounts and logins for unusual activity  

And that, my friends, is scam number one in this week’s This Week in Scams (new format, we’re experimenting a little).  

Let’s get into what else is on our radar. 

Deepfake Celebrity Ads Are Targeting Seniors on Social Media. Here’s What a New Study Found.  

If you saw our story last year about Al Roker speaking out after scammers used an AI-generated version of him to promote a fake hypertension cure, or the shocking case of a French woman who lost nearly $900,000 to fraudsters posing as Brad Pitt, you already know just how convincing celebrity deepfake scams have become. 

Now, new reporting suggests these scams are reaching older adults at enormous scale. 

According to a new study from the Center for Countering Digital Hate, just 30 of the most active scam advertisers on Facebook generated an estimated 215 million ad impressions over the past year. Nearly 73% of those impressions were shown to adults over 65. 

The fake ads used AI-generated versions of well-known figures including Donald Trump, Joe Biden, Oprah Winfrey, Steve Harvey, and Brad Pitt to promote fake government benefits, miracle health products, and bogus financial offers. 

These are some of the AI-generated and photoshopped images used by scammers last year to convince a woman she was dating Brad Pitt.
These are some of the AI-generated and photoshopped images used by scammers last year to convince a woman she was dating Brad Pitt.

What McAfee’s Data Says About Celebrity Deepfake Scams 

This aligns closely with McAfee’s 2025 Most Dangerous Celebrity: Deepfake Deception List. 

Our research found that: 

  • 72% of Americans have seen a fake celebrity or influencer endorsement online  
  • 39% have clicked on one of these ads or posts  
  • 1 in 10 lost money or personal information  
  • Average losses reached $525 per victim  

The celebrities most commonly exploited in the U.S. included Taylor Swift, Scarlett Johansson, Jenna Ortega, and Sydney Sweeney, while Brad Pitt also ranked prominently on the global list.  

Why These Scams Work So Well 

Celebrity deepfake scams exploit something simple: trust. 

When a familiar face appears in your social feed, whether it is Al Roker recommending a health product or Brad Pitt asking for help, your guard naturally drops. 

And AI is making these fakes harder to detect. 

McAfee’s 2026 State of the Scamiverse found that Americans now encounter an average of three deepfakes every day, yet more than one in three say they are not confident they can identify one. 

In other words, scammers are weaponizing the faces people know best to make fraud feel familiar. 

How to Spot a Deepfake on Social Media 

Celebrity deepfakes are designed to look convincing, but there are still clues that something is off. If you see a video of Oprah Winfrey, Al Roker, or Brad Pitt promoting a miracle cure, government benefit, or investment opportunity, pause before you click. 

Here are some of the biggest red flags to watch for: 

Red Flag   What to Look For   
Too-good-to-be-true offers  The video promises free grocery money, secret Medicare benefits, guaranteed investment returns, or miracle health cures. 
Out-of-character endorsements  A celebrity appears to promote a random supplement, financial opportunity, or government program that seems unrelated to their normal work. 
Robotic or unnatural voice  The speech sounds overly smooth, lacks natural pauses, or has strange pacing and tone. 
Lip-sync issues  The celebrity’s mouth movements do not perfectly match the words being spoken. 
Unnatural facial expressions  Blinking, smiling, and head movements appear stiff, overly polished, or slightly off. 
Urgent language  The ad pressures you to “Act now,” “Claim your benefits today,” or “Limited spots available.” 
Suspicious links  Clicking leads to a website you do not recognize or that does not match the company or organization being referenced. 
No confirmation elsewhere  Trusted news outlets and the celebrity’s verified accounts do not mention the same announcement or offer. 

When in doubt, go directly to the celebrity’s verified social account or search trusted news sources to confirm the information. And if something feels off, trust your instincts. In the age of AI, seeing is no longer believing. 

How McAfee Helps You Stay Ahead of These Scams 

McAfee+ Advanced gives you multiple layers working together so you’re not left figuring it out in the moment: 

  • Scam Detector flags suspicious texts, emails, links, and even deepfake videos before you engage  
  • Safe Browsing helps block risky sites if you do click or scan  
  • Device Security helps detect and remove malicious apps or downloads  
  • Identity Monitoring alerts you if your personal info shows up where it shouldn’t, so you can act fast  
  • Personal Data Cleanup helps remove your information from data broker sites, making you a harder target in the first place  
  • Secure VPN keeps your data private, especially on public Wi-Fi  

Safety tips to carry into next week 

  • Slow down when a message creates urgency. That’s the hook  
  • Don’t scan QR codes or click links from unexpected texts  
  • Go directly to official websites instead of using links sent to you  
  • Use tools that flag scams in real time so you don’t have to guess  
  • Don’t trust celebrity endorsements posted to social media unless they come directly from a celebrity’s official page 

The reality is, these scams are designed to look normal. You shouldn’t have to be an expert to spot them. That’s why McAfee’s here to help. 

We’ll be back next week with more scams making headlines. 

The post How to Spot Fake Court Texts and Celebrity Deepfake Ads: This Week in Scams appeared first on McAfee Blog.

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Sinkholing CountLoader: Insights into Its Recent Campaign

Authored by Harshil Patel and Sakshi Jaiswal 

McAfee Labs has recently uncovered a large scale CountLoader campaign that uses multiple layers of obfuscation and staged payload delivery to evade detection and maintain persistence in infected systems. The infection process relies on several layers of loaders, including PowerShell scripts, obfuscated JavaScript executed through mshta.exe, and in memory shellcode injection, each stage decrypting and launching the next. The attackers employ a custom encrypted communication protocol to interact with their C2 servers. By registering a backup domain used by the malware, we were able to sinkhole the traffic and observe thousands of infected machines connecting to the C2 infrastructure. Final payload deployed in this campaign is a cryptocurrency clipper, which monitors clipboard activity and replaces copied wallet addresses with attacker controlled ones to redirect cryptocurrency transactions. 

Sinkholing 

Sinkholing is a defensive technique in which researchers take control of malicious domains or infrastructure used by malware. Instead of allowing infected systems to communicate with attacker controlled C2 servers, the traffic is redirected to a researcher controlled server. This approach enables researchers to monitor infected hosts, collect telemetry, measure the scale and spread of a campaign. 

Key Findings 

  • McAfee researchers identified a large-scale CountLoader campaign using multi-stage payload delivery and heavy obfuscation techniques. 
  • Researchers successfully sinkholed malware communication using a backup C2 domain, enabling visibility into the campaign’s infrastructure and infected hosts. 
  • The sinkhole received approximately 5,000 connections per minute from infected systems. 
  • Telemetry collected during the investigation revealed around 86,000 unique infected machines. 
  • The malware also spreads through USB drives, with approximately 9,000 infections attributed to removable media. 
  • The final payload deployed in this campaign is cryptocurrency clipper malware that hijacks clipboard data to redirect cryptocurrency transactions. 

C2 Sinkholing and Geographical Prevalence  

As the malware contacts the C2 servers in the reverse order and only hell1-kitty[.]cc was used by attackers, we were able to register hell10-kitty[.]cc and were able to gain insights into the campaign. 

Figure 3 : Sinkholing malware communication
Figure 1: Sinkholing malware communication

On average, around 5,000 infected clients contacted our server every minute. 

In total, we observed approximately 86,000 unique infections. 

Telemetry collected revealed that this CountLoader campaign has a broad global footprint. The highest number of infections were observed in India, followed by Indonesia, the United States, and several countries across Southeast Asia. 

Figure 2 : Global distribution of CountLoader infections.
Figure 2: Global distribution of CountLoader infections.

Conclusion 

CountLoader is a multistage malware loader that uses obfuscated JavaScript and trusted Windows utilities to deliver additional payloads. It ensures persistence via scheduled tasks and uses multiple fallback C2 domains to maintain reliability. Malware employs in-memory execution and security bypass techniques to evade detection.  

In recent campaigns, it has been observed deploying cryptocurrency clipper malware to silently hijack transactions.  

McAfee Researchers identified a flaw in its communication mechanism and were able to exploit it to gain insights into the campaign. 

Technical Analysis 

The following diagram illustrates the complete infection chain used in this CountLoader campaign, from the initial execution to the deployment of the final payload. 

Figure 3 : Infection Chain
Figure 3: Infection Chain

The infection begins when an EXE file is executed. This file launches a PowerShell command, which downloads and executes an obfuscated JavaScript loader known as CountLoader. The loader is executed using mshta.exe, a legitimate Windows utility often abused by malware to run scripts. 

Once executed, it performs several tasks: 

  • Establishes persistence by creating a scheduled task that runs every 30 minutes. 
  • Contacts multiple C2 servers, trying them in reverse order until a connection is successful. 
  • Attempts to spread via USB drives by replacing files with malicious LNK shortcuts that execute the malware when opened. 
  • Wait for the C2 server to issue commands to download and execute payloads. 

The payload execution chain consists of several stages: 

Launcher: A secondary JavaScript component creates another scheduled task that runs every 60 minutes, ensuring long term persistence. 

PowerShell Packer: The launcher executes an obfuscated PowerShell script that acts as a packer. This script decrypts and launches the next stage. 

Injector: The next PowerShell stage disables security mechanisms such as AMSI and injects shellcode into a legitimate process. 

Shellcode Execution: The injected shellcode unpacks the final payload directly in memory. 

Final Payload: The final payload is executed under the process systeminfo.exe. In this campaign, the deployed payload was identified as a cryptocurrency clipper malware, which monitors clipboard activity and replaces copied cryptocurrency wallet addresses with attacker controlled addresses. 

Stage 1 Exe 

The infection chain begins with the execution of a malicious EXE file, it immediately runs a PowerShell one-liner as shown in the below image. 

Example of the execution chain

Stage 2 – PowerShell 

The PowerShell script fetched from the URL decodes a Base64-encoded string and executes the resulting content. It also employs an unusual obfuscation technique, where the variable names are crafted to resemble the highlighted pattern, making the script harder to read and analyze.

Power Shell

Multiple such variables are used to create a complete base64 string which is then decoded and executed through Invoke-Expression. 

Payload 2

Stage 3 – CountLoader 

The file is a HTA file with JavaScript that uses string obfuscation technique to evade detection. 

Countloader

It starts by hiding the mshta window to ensure that the malicious activity runs silently in the background without alerting the user. 

The script then attempts to delete its own file in case it was executed locally. If the script determines that it is not being executed from a URL, it terminates immediately.  

Countlaoder 2

Then the script tries to contact C2 serversiterating through the list in reverse order.

Countloader 3

Figure 4: C2 communication protocol.
Figure 4: C2 communication protocol.

A handshake process is performed to verify connectivity with the server. The client sends an encrypted “checkStatus” message, and the server responds with an encrypted “success” message if the connection is valid 

All communications between the client and the server are encrypted, with slightly different encryption schemes used for each direction: 

  1. Client to Server:  text → (key+(base64encode(utf16le(xor(text, key))))) 
  2. Server to Client:  text → (key+(base64encode(xor(text, key)))) 

The key is a randomly generated six digit number created for each message. 

The key is a randomly generated six digit number created for each message. If the handshake is successful, the corresponding domain is selected as the active C2 server, which is used for all subsequent communications. 

To maintain persistence on the infected system, the malware creates a scheduled task if one does not already exist. 

To maintain persistence on the infected system, the malware creates a scheduled task if one does not already exist.

The scheduled task command line is slightly different if it detects CrowdStrike or Reason AV installed on the system, likely as an attempt to evade detection from these AVs. 

After establishing persistence, the malware gets a JWT token from the C2 server, which is used to authenticate further requests. 

The get_jwt_token function sends system information about the infected host to the server.

The get_jwt_token function sends system information about the infected host to the server.

This includes details related to cryptocurrency usage, such as installed wallets and browser extensions, allowing the attackers to determine whether the victim is likely involved with cryptocurrency.

This includes details related to cryptocurrency usage, such as installed wallets and browser extensions, allowing the attackers to determine whether the victim is likely involved with cryptocurrency. 

Finally, the malware gets commands from the C2 server, which is then executed on the compromised system. 

command from the C2 server

Each command contains a taskType value that determines the action to be performed on the infected system. 

The table below shows the command codes and their actions. 

Code   Command 
1  execute exe file 
2  execute python file 
3  execute dll file 
4  uninstall itself 
5  send domain info to C2 
6  execute msi file 
9  spread by infecting usb files 
10  execute HTA file 
11  execute powershell file 

We observed two commands from the above list being sent to the malware as highlighted below: 

Spreading via USB drives (taskType – 9) 

When instructed by the C2 server to spread via USB drives, the malware replaces certain file types on all connected external drives with LNK shortcut files. These shortcuts are crafted so that when a user opens them, the malware executes while simultaneously opening the original file to avoid suspicion. 

Targeted file types are  exe , pdf , doc and docx. 

The build ID of the malware is appended with “_usb”. 

The build ID of the malware is appended with “_usb”.

Deploying payload using powershell (taskType – 11) 

The CountLoader is capable of running many types of executable files, In this campaign, it deploys a separate execution chain that ultimately leads to a clipper malware. 

CountLoader launches the next stage using the following command line: 

CountLoader launches the next stage using the following command line:

Payload Launcher 

The Payload Launcher is very similar to CountLoader in terms of both functionality and obfuscation techniques. 

However, unlike CountLoader, which retrieves tasks from the C2 server, the launcher contains hard-coded task information. 

For persistence, it creates a scheduled task which executes "mshata.exe {domain}/{name}" every 60 minutes.

For persistence, it creates a scheduled task which executes  “mshata.exe {domain}/{name} every 60 minutes. 

For persistence, it creates a scheduled task which executes  "mshata.exe {domain}/{name}" every 60 minutes. 

In the task configuration: 

“url” specifies the url of the payload. 

“taskType” is set to 11, indicating that the payload should be executed as a PowerShell script. 

"taskType" is set to 11, indicating that the payload should be executed as a PowerShell script.

Powershell Packer 

The PowerShell script executed by the launcher acts as a simple packer. It is obfuscated using the same obfuscation technique mentioned earlier. Its primary function is to decrypt and execute another PowerShell script. 

Powershell Packer

Injector 

The next stage is another PowerShell script responsible for injecting shellcode into a running process. 

Before performing the injection, the script disables AMSI (Antimalware Scan Interface) using script from GitHub – S3cur3Th1sSh1t/Amsi-Bypass-Powershell.  

powershell script

After disabling AMSI, the script executes code that performs shellcode injection, 

After disabling AMSI, the script executes code that performs shellcode injection,

And injects in one of these legitimate processes: 

And injects in one of these legitimate processes:

Shellcode 

The injected shellcode unpacks and loads the final payload directly into memory, 

Final Payload 

The payload observed in this campaign is a clipper malware. This type of malware changes cryptocurrency address in clipboard to that of attacker’s when user copies any address. 

It starts by fetching the C2 server address, which it gets by a technique called EtherHiding, where the C2 server address is fetched from Ethereum blockchain. 

It starts by fetching the C2 server address, which it gets by a technique called EtherHiding, where the C2 server address is fetched from Ethereum blockchain.

Once the C2 server address is obtained, the malware begins reporting system activity to the server. 

It then continuously monitors the clipboard contents. 

Once the C2 server address is obtained, the malware begins reporting system activity to the server. It then continuously monitors the clipboard contents.

It then continuously monitors the clipboard contents.

McAfee Coverage 

McAfee provides extensive coverage against CountLoader:  

Trojan:Script/CountLoader4.DES
Trojan:Script/JSBackdoor.HELK!2
Trojan:Shortcut/LNKDownloader.HK
Trojan:Shortcut/Worm.HELK
Trojan:Script/ObfuPS.HELK
Trojan:Script/AMSIBypass.STS!1
Ti!5F9FF671955A
Ti!DC602CB53A9C

Indicators Of Compromise 

 IOC   
EXE (stage 1)  5f9ff671955a6d551595f9838aed063c496da5039be0d222fe84f96cb3e1d32a 
PS url (stage 2)  https://memory-scanner[.]cc/Presentation[.]pdf 
PS (stage 2)  3c278499c5e3ced3bf1a6a7287808c5267075f1dec0aa5c7be2c4c444f33f2bc 
CountLoader download URLs  https://memory-scanner[.]cc/ 
https://hell1-kitty[.]cc/update1_usb_usb_usb[.]VOcx4wEV8 
CountLoader v3.3  c68e436d4cb984db026210806f50d0c81eec5f6e4860197dab91fab6f31ef796 
CountLoader v4.1  e2faad8111e7d47349cbc549b85e62231b8678057906bc813aad7242fa95ae63 
e5e1d8ec4cd109df290752ee3d4b2cbc9de6df4360e9983548f1bc6b1d088540 
CountLoader C2 Domains  hell1-kitty[.]cc 
alphazero1-endscape[.]cc 
api-microservice-us1[.]com 
bucket-aws-s1[.]com 
bucket-aws-s2[.]com 
fileless-storage-s3[.]cc 
globalsnn1-new[.]cc 
globalsnn2-new[.]cc 
globalsnn3-new[.]cc 
handle-me-sv1[.]com 
hardware-office[.]cc 
health-smooth-eu1[.]com 
health-smooth-eu2[.]com 
health-smooth-eu3[.]com 
holiday-updateservice[.]com 
memory-protection-layer1[.]cc 
memory-protection-layer2[.]cc 
microservice-update-s1-bucket[.]cc 
microservice-update-s2-bucket[.]cc 
my-smart-house1[.]com 
polystore9-servicebucket[.]cc 
s3-updatehub[.]cc 
usb lnk files  10593dbe9edfde7943fdaadd7882f190216b2f6502667daf701088a6e810deaf 
0a69a9cc75d65774e5eb90a4a739bd4335d33b176dc4923acb691bd45af66bdf 
27c6a6bda2c0ef3ecb78dad9c6bb7c3abaf2e32b3ad96f372a0102c0c9c0f08d 
2cd449f1bb24f05d2e240812a74bd62f2583bbbe4d0ccc9ae5736240e29a0068 
30dcd5c71beb76d2f8df768d5fd9e9145cb8fbbfc951a63b969d26d3b64002b9 
dd4c7f5aae404816cf447b8090b620c1a1971a35c6791116aa3f871f00ae011b 
42a1fc74334c9a3b8720c79df55f84c7398bd31609eb10581e8c7155835498e3 
9c0d334aac5a6f66016dc5ce8df75c46d519a4e6d16c68cf2b1405c81189186d 
44f6313e9542c0d51937a70160fe4137012905d8c79ad27ccc0021788ecfaa4e 
payload launcher url  https://hell1-kitty[.]cc/gamecenter[.]fileManager 
https://hardware-office[.]cc/foundation[.]halflife 
payload launcher  cbdfb46b9265a3dfb3bc6b0aade472dde28b1660dbd3ded3b67b1530b4497cca 
packer url  http://45[.]156[.]87[.]118:3015/select 
http://45[.]156[.]87[.]62:3443/production 
http://104[.]253[.]1[.]137/content 
packer  4a5e1d6ee1217e1fbacf54fc6017fbf9d24a25078266b02358d56a9c7437ceb7 
injector  05becb67d8bf1e49fcfccb0d346b82368a2b1c2bf07316078c364c7b020154de 
shellcode  44daa1b68737b55a711963eec211c7c018bcba4cb6d68c286a4b45ea781a7d73 
payload  dc602cb53a9c24abfcdaadf0ca8256b5fb5cac6d91d20ed8431bdaaf51c0cafe 
payload C2  https://edr-security-bucket1[.]cc/ 

The post Sinkholing CountLoader: Insights into Its Recent Campaign appeared first on McAfee Blog.

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