Security Weekly - A CRA Resource: The CAPTCHA Is Actually the Attack

“Click-fix” attacks use social engineering to convince victims to execute malicious commands themselves. One technique disguises the instructions behind a fake Cloudflare CAPTCHA and tells the user to open PowerShell or Terminal and paste a command.

The attacker doesn't necessarily need to bypass the user's security controls directly. They can manipulate the user into becoming part of the execution chain.

Organizations can reduce the risk by restricting unnecessary access to PowerShell and Terminal, limiting administrative execution, controlling script execution, and using Group Policy to enforce those restrictions.

As attackers increasingly manipulate users into executing commands themselves, where should organizations draw the line between usability and security?

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