(Writeup) LetsDefend Challenge
Walkthrough of a LetsDefend challenge centered on Excel 4.0 macro malware. Covers deobfuscating XLM macros, analyzing malicious Office documents, and tracing LOLBAS execution chains through regsvr32. Useful for SOC analysts learning to triage Office-based attacks and understanding how macro payloads persist and execute. Shows practical use of XLMMacroDeobfuscator and oletools in a structured investigation.