---
id: 6428
title: "Why Custom Attributes in .NET give me Nightmares"
source_domain: blog.washi.dev
source_url: "https://blog.washi.dev/posts/custom-attributes-and-why-they-suck/"
published_at: "2026-05-30T00:00:00Z"
tags: ["reverse-engineering", "file-format", "dotnet", "parsing", "custom-attributes", "asmresolver"]
phying_url: "https://phying.com/item/6428"
lang: en
---

# Why Custom Attributes in .NET give me Nightmares

## Summary

The AsmResolver maintainer explains why .NET custom attributes are painful to parse — covering enum value encoding, slow and complex type-name parsing — and why their storage is a poor design choice.

## Intelligence Metadata

- **Sources:** blog.washi.dev
- **Published:** 2026-05-30T00:00:00Z
- **Original:** https://blog.washi.dev/posts/custom-attributes-and-why-they-suck/
- **Phying News:** https://phying.com/item/6428