What Is ClickFix and How Does It Work?

ClickFix is a recent type of cyberattack that leverages phishing techniques to deceive company employees. These attacks, targeting Windows users, have been on the rise. Users encounter fake CAPTCHA tests or error messages instructing them to perform simple keyboard actions: Win+R, Ctrl+V, and then Enter. By following these steps, users unknowingly execute malicious commands that have been copied to the computer’s clipboard. There are various versions of this attack method, but this is the most common variant observed by Syndis.

Why Is ClickFix Dangerous for Companies?

Since employees themselves execute the malicious commands, traditional security defenses find it harder to detect the threat. ClickFix can easily lead to data theft, financial fraud, unauthorized access to internal company systems, and severe reputational damage.

How can management protect the company?

Education
Ensure that staff are aware of this method. Teach them to recognize fraudulent CAPTCHA or error messages and understand that legitimate websites never ask users to perform such steps.

Disable “Win+R” Functionality
Syndis recommends simply disabling the Windows + R functionality on employee workstations, as few actually need to use this feature. Tools like GPO or Intune can be utilized to implement such a block centrally. Staff can use other, safer methods to open necessary applications for their work. However, ensure that alternative methods are accessible for those who require them in their daily tasks.

Implement Endpoint Detection and Response (EDR) Protections
Utilize EDR protections on endpoints and monitor notifications from these endpoints. By implementing such defenses and providing targeted education, companies can prevent employees from falling victim to this subtle and widespread attack.

These recommendations reduce the risk but do not eliminate it entirely. Regular education, technical defenses, and increased employee vigilance are key components of a robust defense against ClickFix and similar threats.

Always vigilant

At Syndis, we closely monitor the development of these matters. If you have questions or seek further information, the Syndis team is always ready to assist.