ArchiveJune 2023

GuLoader: Navigating a Maze of Intricacy

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GuLoader TL;DR GuLoader is a polymorphic shellcode loader packed full of anti-analysis and anti-vm techniques to evade detection. The malware began as a Visual Basic (VB) 5/6 downloader, first identified in 2019. VB served as a wrapper for the core component implemented in shellcode until late last year. GuLoader began experimenting with a variety of delivery methods including VBS and macro...

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