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JS#SMUGGLER Malware Campaign Delivers NetSupport RAT via Multi-Stage Attack

JS#SMUGGLER Malware Campaign Delivers NetSupport RAT via Multi-Stage Attack

First seen 9 Dec 2025, 23:42 UTC

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ThreatCluster AI
ThreatCluster March 12, 2026 at 13:27 UTC

The JS#SMUGGLER malware campaign has been identified, utilizing a multi-stage attack to deliver the NetSupport RAT, allowing attackers to gain covert control over victim computers. The attack begins with a JavaScript loader on compromised websites, leading to the execution of encrypted PowerShell commands and ultimately installing the remote access tool. Victims are primarily desktop users targeted through hidden web-based redirects.

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