Fake LastPass GitHub Repos Are Stealing More Than Passwords

Michael Miller · 2026-09-18

You know that feeling when you're about to download a tool you trust, and you pause for a second—wondering if the link is really legit? That instinct just became your best defense. A sneaky malware campaign is using fake GitHub repositories that look exactly like popular software—including LastPass Authenticator—to infect people with a new infostealer called Rapuncel. Security researchers recently uncovered the operation, and it's a wake-up call for anyone who grabs software from search results without double-checking. Let's break down what's happening, why it works, and how to stay safe. ### How the Scam Works Hackers create GitHub repos that mimic real companies. They stuff them with keywords so they appear at the top of Google searches for things like "LastPass Authenticator download" or "password manager setup." When you click, you land on a page that looks official—same logo, same description, same vibe. But instead of the real app, you get a file that installs Rapuncel. This infostealer quietly grabs your saved passwords, browser cookies, crypto wallets, and even session tokens. It's like a burglar who copies your house key instead of breaking a window. > "The most dangerous malware doesn't announce itself. It just looks like something you already trust." ### Why This Campaign Is Different Most malware relies on sketchy emails or shady websites. This one uses GitHub—a platform developers trust—and SEO tricks to reach a wider audience. That combination makes it far more effective. - **SEO poisoning:** Fake repos are optimized to rank high in search results. - **Brand impersonation:** They copy logos and names from companies like LastPass. - **Undetectable payload:** Rapuncel is new, so many antivirus tools don't flag it yet. What's scary is how normal everything looks. You're not asked to disable your antivirus or visit a weird domain. You just click a link that seems fine. ### What You Can Do Right Now You don't need to be a security pro to protect yourself. A few simple habits go a long way. - **Always verify the source.** If you're downloading software, go directly to the company's official website. Don't trust search results alone. - **Check the repo details.** Look at the account age, stars, and commit history. Fake repos often have little activity. - **Use a password manager with built-in breach alerts.** It won't stop malware, but it'll warn you if your credentials show up in a leak. - **Enable two-factor authentication (2FA) everywhere.** Even if your password is stolen, 2FA can block access. - **Keep your system updated.** Many infostealers exploit known vulnerabilities that patches fix. ### The Bigger Picture This isn't just about LastPass or GitHub. It's a reminder that the tools we trust can be turned against us. As long as search engines rank results by relevance—not verified safety—hackers will find ways to game the system. So next time you're about to download something, take that extra second. Your gut is right more often than you think. And in this case, it might just save you from a very bad day.