New JS#SMUGGLER Campaign Drops NetSupport RAT Through Infected Sites

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December 8, 2025 at 6:16 PM

Actively Exploited

Summary

The JS#SMUGGLER campaign is a sophisticated web attack that employs obfuscated JavaScript and hidden HTA files to deploy the NetSupport RAT on Windows desktops. This malware allows attackers to gain full remote control over infected systems, posing a significant threat to user security and privacy.

Original Article Summary

Securonix Threat Research details the complex JS#SMUGGLER campaign, a three-step web attack using obfuscated JavaScript and hidden HTA files to install the NetSupport RAT on user Windows desktops, granting hackers full remote control and persistent access.

Impact

Windows desktops, NetSupport RAT

In the Wild

Yes

Timeline

Newly disclosed

Remediation

Users should ensure their antivirus software is up-to-date, avoid visiting suspicious websites, and consider using web filtering solutions to block malicious scripts.

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