In-Depth Analysis of A New Variant of .NET Malware AgentTesla

FortiGuard Labs recently captured some malware which was developed with the Microsoft .Net framework. I analyzed one of them, and in this blog, I’m going to show you how it is able to steal information from a victim’s machine. The malware was spread via a Microsoft Word document that contained an auto-executable malicious VBA Macro. Figure 1 below shows how it looks when it’s opened. Figure 1. When the malicious Word document is opened What the VBA code does Once you click the “Enable Content”...

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