GigaWiper Malware Can Erase Your Files—Here's What to Watch For

A new piece of malware called GigaWiper has emerged that can infect Windows computers, spy on your activity, and permanently delete your files. Understanding how it spreads and what it does will help you keep your system safe.

What is GigaWiper, and how does it get onto your computer?

GigaWiper is a remote access Trojan. That means once it gets inside your system, someone else can take control of it from a distance. It typically arrives as an attachment in phishing emails or through downloads from compromised websites. You might see it disguised as a legitimate file—software, a document, an image—but it's actually malicious code. When you run it, you've unknowingly invited an intruder into your computer.

What damage can it actually do?

GigaWiper has three different methods for wiping your hard drive clean. It doesn't just delete a few files—it can systematically erase your documents, photos, financial records, and everything else stored on your machine. The malware can also spy on what you're doing before it destroys the data, so a scammer could harvest passwords or personal information before the deletion happens.

What should you do to protect yourself?

First, be cautious with email attachments, especially from people you don't know or messages that look off. Don't download files from websites that seem sketchy or offer something too good to be true. Keep Windows updates installed—Microsoft regularly patches vulnerabilities that malware like this exploits. Use antivirus software and keep it current. Finally, back up your important files to an external drive or cloud service that's separate from your main computer. If GigaWiper or something similar does infect your machine, a good backup means your files survive the attack.

The best defense against malware is skepticism. Slow down before you click, download, or open something. If an email or offer feels suspicious, it probably is.