If YARA signatures for .NET assemblies only rely on strings, they are very limited. We explore more detection opportunities, including IL code, method signature definitions and specific custom attributes. Knowledge about the underlying .NET metadata structures, tokens and streams helps to craft more precise and efficient signatures, even in cases where relevant malware samples might be unavailable.
Introduction to Malware Binary Triage (IMBT) Course
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Article Link: 100 Days of YARA: Identifying Threats and writing Signatures