Imagine you’re working away on your PC and see a Windows update prompt. Instead of ignoring it, you take action. But when you install what you think is a legitimate update, you’re infected with ransomware.
Cybercriminals are constantly devising new ways to infiltrate systems. They encrypt valuable data, leaving victims with difficult choices. One such variant that has emerged recently is the “Big Head” ransomware.
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. 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.
Big Head ransomware leverages the appearance of Windows updates. One way to be sure you’re installing a real update is to automate.
Genuine Windows updates will come directly from Microsoft’s official website or through your IT service provider or Windows Update settings.
Regularly back up your important files. Use an external storage device or a secure cloud backup service. Backups of your data can allow you to restore your files without paying a ransom.
Install reputable antivirus and anti-malware software on your computer.
Stay informed about the latest ransomware threats and tactics. Educate yourself and your colleagues or family members.
Put in place robust email security measures. Be cautious about opening email attachments or clicking on links.
Activate your computer’s firewall. Use network security solutions to prevent unauthorised access to your network and devices.
Configure your computer to disable auto-run functionality for external drives.
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 computer’s performance and any unusual activity. If you notice anything suspicious, investigate immediately.
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.
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