ClickFix Explained: How the Fake CAPTCHA Actually Works

What was actually happening when you pasted that "verification" command? Here's the technical breakdown of how ClickFix attacks work. Fake CAPTCHA. Hijacked clipboard. PowerShell. Fileless malware. Following Part 1's walkthrough of someone falling for a ClickFix attack, this video reveals what was actually running at each step. The "CAPTCHA" was a fake page with malicious JavaScript that copied a PowerShell command to your clipboard the moment you clicked "I'm not a robot." The "verification" instructions were a way to get you to paste and execute that command yourself. Windows-R opens the Run dialog (or Terminal on macOS), which runs whatever you paste and hit Enter on. The command pulled malware from a remote server and ran it directly in memory, never writing to disk, so antivirus and browser warnings never fired. ClickFix attacks rose more than 500% in the first half of 2025, per ESET's H1 2025 threat report. Earlier this year, attackers ran fake install pages for Claude Code and other AI developer tools through Google Ads. Trend Micro and Rapid7 documented developers losing GitHub tokens, SSH keys, and cloud credentials to this same trick. Sources: https://www.microsoft.com/en-us/security/blog/2025/08/21/think-before-you-clickfix-analyzing-the-clickfix-social-engineering-technique/ https://www.trendmicro.com/en_us/research/26/e/installfix-and-claude-code.html https://www.infosecurity-magazine.com/news/clickfix-attacks-surge-2025/ More on cybersecurity, privacy, scams, and homelab on Hake Hardware. New shorts every weekday. #cybersecurity #clickfix #malware