---
id: 7831
title: "The Silk Wasm: Obfuscating HTML Smuggling with Web Assembly"
source_domain: netspi.com
source_url: "https://www.netspi.com/blog/technical-blog/red-teaming/obfuscating-html-smuggling-with-web-assembly/"
published_at: "2024-02-26T00:00:00Z"
tags: ["red-team", "wasm", "evasion", "initial-access", "malware-delivery", "html-smuggling"]
phying_url: "https://phying.com/item/7831"
lang: en
---

# The Silk Wasm: Obfuscating HTML Smuggling with Web Assembly

## Summary

NetSPI demonstrates obfuscating HTML smuggling with Web Assembly, embedding payloads in Wasm so files reassemble victim-side and evade network detections that flag suspicious outbound file downloads.

## Intelligence Metadata

- **Sources:** netspi.com
- **Published:** 2024-02-26T00:00:00Z
- **Original:** https://www.netspi.com/blog/technical-blog/red-teaming/obfuscating-html-smuggling-with-web-assembly/
- **Phying News:** https://phying.com/item/7831