Watch Out for Ransomware Pretending to Be a Windows Update!

by | Dec 18, 2023 | Cybersecurity

Imagine you’re working away on your PC and see a Windows update prompt. Instead of ignoring it, you take action. After all, you want to keep your device safe. But when you install what you think is a legitimate update, you’re infected with ransomware.

That’s the nightmare caused by an emerging cybersecurity threat.

Cybercriminals are constantly devising new ways to infiltrate systems. They encrypt valuable data, leaving victims with difficult choices. Once ransomware infects your system, your PC is pretty useless. You either have to pay a ransom or get someone to remove the malware. As well as install a backup (if you have one!).

One such variant that has emerged recently is the “Big Head” ransomware. It adds a new layer of deception by disguising itself as a Windows update. In this article, we’ll explore the ins and outs of Big Head ransomware. Including its deceptive tactics. We well as how you can protect yourself from falling victim to such attacks.

The Big Head Ransomware Deception

Ransomware attacks have long been infamous for their ability to encrypt files. This renders them inaccessible to the victim until a ransom is paid to the attacker. In the case of Big Head ransomware, the attackers have taken their tactics to the next level. The attack masquerades as a Windows update.

Big Head ransomware presents victims with a convincing and fake Windows update alert. Attackers design this fake alert to trick users. They think that their computer is undergoing a legitimate Windows update. The message may appear in a pop-up window or as a notification.

The deception goes even further. The ransomware uses a forged Microsoft digital signature. This makes the fake update appear more authentic. This adds an extra layer of credibility to the malicious message. And makes it even more challenging for users to discern its true nature.

The attack fools the victim into thinking it’s a legitimate Windows update. They then unknowingly download and execute the ransomware onto their system. From there, the ransomware proceeds to encrypt the victim’s files. Victims see a message demanding a ransom payment in exchange for the decryption key.

By 2031, it’s expected a ransomware attack will occur every 2 seconds.

Protect Yourself from Big Head Ransomware & Similar Threats

Cyber threats are becoming more sophisticated. It’s not just the good guys exploring the uses of ChatGPT. It’s crucial to take proactive steps to protect your data and systems. Here are some strategies to safeguard yourself from ransomware attacks like Big Head.

Keep Software and Systems Updated

This one is tricky. Because updating your computer is a best practice for security. Yet, Big Head ransomware leverages the appearance of Windows updates.

One way to be sure you’re installing a real update is to automate. Automate your Windows updates through your device or an IT provider (like us). This increases the chances of spotting a fake that pops up unexpectedly.

Verify the Authenticity of Update

Before installing any software update, verify its authenticity. Genuine Windows updates will come directly from Microsoft’s official website. Or through your IT service provider or Windows Update settings. Be cautious of unsolicited update notifications. Especially those received via email or from unfamiliar sources.

Backup Your Data

Regularly back up your important files. Use an external storage device or a secure cloud backup service. In the event of a ransomware attack, having backup copies is vital. Backups of your data can allow you to restore your files without paying a ransom.

Use Robust Security Software

Install reputable antivirus and anti-malware software on your computer. These programs can help detect and block ransomware threats. This helps prevent them from infiltrating your system.

Educate Yourself and Others

Stay informed about the latest ransomware threats and tactics. Educate yourself and your colleagues or family members. Discuss the dangers of clicking on suspicious links. As well as downloading attachments from unknown sources.

Use Email Security Measures

Ransomware often spreads through phishing emails. Put in place robust email security measures. Be cautious about opening email attachments or clicking on links. Watch out for emails from unknown senders.

Enable Firewall and Network Security

Activate your computer’s firewall. Use network security solutions to prevent unauthorized access to your network and devices.

Disable Auto-Run Features

Configure your computer to disable auto-run functionality for external drives. This can help prevent ransomware from spreading through infected USB drives.

Be Wary of Pop-Up Alerts

Exercise caution when encountering pop-up alerts. Especially those that ask you to download or install software. Verify the legitimacy of such alerts before taking any action.

Keep an Eye on Your System

Keep an eye on your computer’s performance and any unusual activity. If you notice anything suspicious, investigate immediately. Suspicious PC activity can be:

  • Unexpected system slowdowns
  • File changes
  • Missing files or folders
  • Your PC’s processor “whirring” when you’re not doing anything

Have a Response Plan

In the unfortunate event of a ransomware attack, have a response plan in place. Know how to disconnect from the network. Report the incident to your IT department or a cybersecurity professional. Avoid paying the ransom if possible.

Need a Cybersecurity Audit?

Don’t leave unknown threats lurking in your system. A cybersecurity audit can shed light on your system vulnerabilities. It’s an important proactive measure to ensure network security.

Give us a call today to schedule a chat.


Featured Image Credit

This Article has been Republished with Permission from The Technology Press.

4 Ways Small Businesses Can Leverage Copilot for Microsoft 365

What are some of the key differentiators that can propel small businesses forward? They include efficiency, productivity, and innovation. Microsoft has expanded the availability of one of its most dynamic tools to SMBs. A tool that can be a real game-changer for...

Introducing the New Microsoft Planner (Everything You Need to Know)

Calendars, task lists, and project planning are important business tools. Many people use Microsoft’s apps to power these processes. Including Planner, Microsoft To Do, and Project for the web.These tools help keep processes on track and enable task accountability....

How to Properly Deploy IoT on a Business Network

The Internet of Things (IoT) is no longer a futuristic concept. It's rapidly transforming industries and reshaping how businesses operate. IoT is a blanket term to describe smart devices that are internet enabled. One example is smart sensors monitoring production...

Here Are 5 Data Security Trends to Prepare for in 2024

With cyber threats evolving at an alarming pace, staying ahead of the curve is crucial. It’s a must for safeguarding sensitive information. Data security threats are becoming more sophisticated and prevalent. The landscape must change to keep up. In 2024, we can...

Google & Yahoo’s New DMARC Policy Shows Why Businesses Need Email Authentication… Now

Have you been hearing more about email authentication lately? There is a reason for that. It’s the prevalence of phishing as a major security threat. Phishing continues as the main cause of data breaches and security incidents. This has been the case for many years.A...

10 Most Common Smart Home Issues (and How to Fix Them)

Back when you were a kid, living in a “smart home” probably sounded futuristic. Something out of Back to the Future II or The Jetsons. Well, we don’t yet have flying cars, but we do have video telephones as well as smart refrigerators and voice-activated lights.But...

What Is Microsoft Security Copilot? Should You Use It?

It can be challenging to keep up with the ever-evolving cyber threat landscape. Companies need to process large amounts of data. As well as respond to incidents quickly and effectively. Managing an organization's security posture is complex.That's where Microsoft...

Smart Tactics to Reduce Cloud Waste at Your Business

Cloud computing has revolutionized the way businesses operate. It offers scalability, flexibility, and cost-efficiency. But cloud services also come with a downside: cloud waste.Cloud waste is the unnecessary spending of resources and money on cloud services. These...