NetWire RAT Targeting Taxpayers is Spreading via Legacy Microsoft Excel 4.0 Macro

A few days ago, FortiGuard Labs harvested a fresh Excel sample and found that it was spreading a new NetWire RAT variant. In this post, we will look at how this Excel 4.0 Macro executes in an Excel file, how the NetWire RAT is installed on the victim’s system, as well as what this NetWire RAT variant actually does once it is installed.

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