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Delivering Trojans Via ClickFix Captcha

· Published 01/04/2025 14:48 · Modified 01/04/2025 17:28

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Essential information

Published
01/04/2025 14:48
Modified
01/04/2025 17:28
Tags
2025-04-01 banking trojan clickfix captcha evasion techniques obfuscation php dropper powershell qbot quakbot social engineering
Related entities
1 intrusion sets (apt), 10 techniques (mitre), 5 malware

Description

A new technique exploiting has emerged as an effective method for delivering various types of malware, including . This technique deceives users and bypasses security measures by utilizing a seemingly harmless captcha. The process involves redirecting users to a that tricks them into executing a malicious command on their local machine. The command downloads and executes obfuscated scripts, which then retrieve and deploy the actual malware payload. The attackers use sophisticated techniques, including fake ZIP files and PHP-based droppers, to evade detection and analysis. This method's success lies in exploiting user trust in captchas and legitimate-looking websites, increasing the likelihood of unknowing malware execution.

External references